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A Periodic Table Puzzler
Posted by: periodicvideos

Video duration: 66 seconds

Can you find the mistake in this periodic table?
SPOILER: A blog about the answer can be found at http://periodicvideo s.blogspot.com/2010/ 09/periodic-table-mi stake.html
A still photo of the table can be found at http://www.flickr.co m/photos/periodicvid eos/4786603143/

Related: periodic, table, mistake

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Latest comments made on this video:

Elements no 104-106 ...
By: mrmagnetoman88. on 08 Sep 10, 08:29:04
Elements no 104-106 have been wrongly named. Element no 104 is rutherfordium, element no 105 is dubnium and element no 106 is seaborgium.

let's mark all the ...
By: reinux. on 08 Sep 10, 06:31:55
let's mark all the answers as spam.

Easy. When an ...
By: Dracopol. on 08 Sep 10, 00:37:54
Easy. When an element is still unnamed, it is given a name made up of Latin numbers such as "nil" (0) and "Un" (1) to show the atomic number. Observe atomic number 110. Formally by this system it should be Ununnilium (Uun) but they mistakenly printed it as Unn!

Shouldn't Lanthanum ...
By: mistergarth. on 07 Sep 10, 23:53:40
Shouldn't Lanthanum be in the Lanthanide series, and Actinium in the Actinide series?

Cs is shown as a ...
By: vevenaneathna. on 07 Sep 10, 22:32:25
Cs is shown as a solid?

@halla369 Si. ...
By: illogicstube. on 07 Sep 10, 22:02:18
@halla369 Si. Correct.

Isn't dubnium ...
By: UkiSmileyFace. on 07 Sep 10, 21:45:28
Isn't dubnium supposed to be 105 instead of 104??

@halla369 Your ...
By: Phacias. on 07 Sep 10, 21:43:46
@halla369 Your answer is correct.

element nr 110 is ...
By: halla369. on 07 Sep 10, 18:22:20
element nr 110 is named unn instead of Uun perhaps?

Its so obvious now, ...
By: ItsScienceBitch. on 07 Sep 10, 18:20:05
Its so obvious now, feeling pretty silly.

lol at the many ...
By: opiumgland. on 07 Sep 10, 15:26:42
lol at the many dislexic and colorblind responders: 1) Hydrogen and Helium ARE a different color than the transition elements 2) Jl is an uppercase J followed by a lowercase L. There is no element Ji on that table.

@T0mNZ Actually ...
By: dominic14061995. on 07 Sep 10, 14:48:16
@T0mNZ Actually it's okay. But some periodic tables place hydrogen isolated from the other elements since they say that hydrogen is not an alkali metal, so it doesn't belong to group 1. However, since it does have only one valence electron, it could be placed in this same group as well.

@ButterflyNM14 ...
By: opiumgland. on 07 Sep 10, 14:29:55
@ButterflyNM14 That's what they want you to believe.

transactinide ...
By: Azner2254. on 07 Sep 10, 13:24:56
transactinide elements?

@MACAO9991 Was I ...
By: AlexSh789. on 07 Sep 10, 12:56:45
@MACAO9991 Was I even talking to you?

There are two ...
By: MACAO9991. on 07 Sep 10, 12:54:23
There are two things: Jl (joliotium) - 106, now it's Sg- 106 and Hn (hanium) - 108, now it's Hs - 108

Joliotium - 106 and ...
By: MACAO9991. on 07 Sep 10, 12:52:05
Joliotium - 106 and Hanium - 108

@Zangetsu333 No, ...
By: AlexSh789. on 07 Sep 10, 12:16:46
@Zangetsu333 No, the Jl should have been switched because the chemical symbols are all based on the Latin alphabet, and J doesn't exist in the Latin alphabet.

@dominic14061995 ...
By: T0mNZ. on 07 Sep 10, 11:47:37
@dominic14061995 Whats wrong with hydrogen being above group one? group is related to valency. Hydrogen has one valence electron just like sodium and potassium.

If you're meaning ...
By: Intskyste. on 07 Sep 10, 11:07:12
If you're meaning the ordering of the elements then most printed periodic tables go out of date pretty quickly for various reasons anyway, so one from 1997 will have quite a few 'errors' looking at it today =P -But yes, 110 would be Uun instead of Unn since the second digit is 1 not 0; un not nil =D

If the prof can't ...
By: YellowMagi. on 07 Sep 10, 10:42:33
If the prof can't see it, how can i see it?

found it! As a ...
By: Softyx07. on 07 Sep 10, 10:03:42
found it! As a matter of fact: Unn would be the systematic name for element 100? wouldn't it? So it has to be Uun?

See blog link under ...
By: periodicvideos. on 07 Sep 10, 09:57:08
See blog link under the video for information about the answer we were looking for!

well Unn I think is ...
By: melekhthechanger88. on 07 Sep 10, 09:44:40
well Unn I think is Ds now after Darmstatium but thats the only thing I found find, whats the other one?

Ha, I've finally ...
By: Pazma1. on 07 Sep 10, 09:02:32
Ha, I've finally figured it out: it's shopped, you can tell by the shadows.

Primo Levi - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 265 seconds

We discuss the chemist and acclaimed writer Primo Levi.
Our trip to Turin, Italy, supported by http://www.cost.esf. org/

Related: primo, levi

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Latest comments made on this video:

This was great. ...
By: Badgerinthenight. on 08 Sep 10, 01:20:51
This was great. Nice to know the 'everyman' scientists are given due credit for their passion as well as those who made landmark discoveries. Thank you! :)

Thanks for another ...
By: murphyld66. on 07 Sep 10, 13:52:43
Thanks for another great video. I've spent a lot of time in chemical plants and refineries working, so I've had many opportunities to "enjoy" the smell of chemicals off-gassing, more than I would prefer.

Thanks guys! Still ...
By: allochthomas. on 07 Sep 10, 13:37:45
Thanks guys! Still busy with the introductions. Already had a small tour of the labs and i felt right at home! There's something about the smell of a chemistry lab indeed. Thursday and friday will include some more tours of the labs, safety training and the handing out of out lab coats. Next monday will be the start of all the lectures and experiments. Will be in the labs doing practical work from 9 till 5 on a thrusday and friday(oh yes)

@allochthomas Good ...
By: crusiatusblack. on 07 Sep 10, 13:28:33
@allochthomas Good luck and have fun :)

@MyOverflow done ...
By: williamkendrick. on 07 Sep 10, 00:39:11
@MyOverflow done and done. send the links! i cant wait!!

Thanks for this ...
By: stmtrionfa. on 06 Sep 10, 21:11:38
Thanks for this video from an italian material scientist

Is it to do with ...
By: TheSoundDepo. on 06 Sep 10, 19:55:07
Is it to do with the bottom period where the elements with Rutherfordium (Rf), Dubnium (Db) being mixed up

@williamkendrick I ...
By: MyOverflow. on 06 Sep 10, 18:57:40
@williamkendrick I want to send you links where you can learn Chemistry (videos, online books, etc) for free on your own time, but I can't because you have friend lock on. I sent a friend request so I can send them to you, but you don't have to accept it if you turn off the friend lock long enough for me to send the links.

nice video
By: bemanos12345. on 06 Sep 10, 18:41:26
nice video

@allochthomas Hope ...
By: andrewpoopoo. on 06 Sep 10, 17:22:38
@allochthomas Hope you had a great day :D

when i was in ...
By: williamkendrick. on 05 Sep 10, 05:24:55
when i was in school, no subject fascinated me more, or was as easy for me (perhaps besides certain advanced mathematics) as chemistry. i was good at it. unfortunately for me, i was in an orphanage, and they felt that my education wasn't as important, and made me leave school, and put me in job corps. biggest disappointment i ever experienced. to this day i wish i could have had more chance to study chemistry. I'm good with computers; but i wish i had a chance just once, to study chemistry.

I like Chemistry, I ...
By: perfect1oNN. on 05 Sep 10, 03:08:40
I like Chemistry, I find it the easiest subject, but what I love is the combination between Physics, Biology and Chemistry and even Mathematics in some cases, like what you find in the Human body.

Primo Levi's book ...
By: 2007ASpaceOdyssey. on 04 Sep 10, 00:10:51
Primo Levi's book If This is a Man is one of my favorite of all time, despite its depressing subject manner, he was a Pynchon-esque wordsmith I highly recommend it

You should also ...
By: singlespies. on 03 Sep 10, 18:05:35
You should also mention Levi's book "Survival at Auschwitz." More than anything else I've seen or read it reveals the experience of daily life in that evil place.

awesome touching ...
By: MADNEXXION. on 03 Sep 10, 14:44:18
awesome touching vid, thanks professor. by the way 4 fools didnt undertstand the video, go read some books

lol nice haircut
By: arabstar7. on 03 Sep 10, 11:38:16
lol nice haircut

1:10 "Quite an ...
By: TeoTheAwesome. on 03 Sep 10, 09:06:49
1:10 "Quite an incompentent band" I hope you were talking about the Germans and not the Italian Partisans...

@allochthomas Good ...
By: periodicvideos. on 03 Sep 10, 07:52:33
@allochthomas Good luck!

@Brianthehax0r ...
By: periodicvideos. on 03 Sep 10, 07:51:36
@Brianthehax0r Thanks, that's great to hear. Always makes us really happy to know people share our love for chemistry!

Im 15, I go to a ...
By: Brianthehax0r. on 03 Sep 10, 04:25:52
Im 15, I go to a decent school and I have to say this channel is one of the reasons chemistry is my favorite subject :D thanks man

I'm sad to say the ...
By: b1u3too. on 03 Sep 10, 04:04:15
I'm sad to say the sound level seems a tad low on the last couple videos.... oh, and you all make me want to go on a field trip. =]

@scorpion779946 ...
By: vevenaneathna. on 03 Sep 10, 03:05:39
@scorpion779946 youtube. com/watch?v=wmC8Dg4n-ZA theres a couple videos of people burning diamonds in a cup or bowl of water, thats pretty cool too.

very good video. ...
By: vevenaneathna. on 03 Sep 10, 03:00:06
very good video. thanks for uploading.

LOL the smell is ...
By: BibleBurnr. on 03 Sep 10, 01:39:04
LOL the smell is wonderful

@carlsontechnology ...
By: acrophobe. on 02 Sep 10, 23:11:24
@carlsontechnology Levi's rubber: the real reason the allies won world war 2. coming soon to a bookstore near you.

Extra bits of Gold - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 277 seconds

A couple of extra clips and stories from our main gold video.
See the main video at http://www.youtube.c om/watch?v=7dF0QTzcu ac

Related: gold, fritz, haber, nano, colloid

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Latest comments made on this video:

@periodicvideos ...
By: pafnoocy. on 05 Sep 10, 19:58:45
@periodicvideos and that's why I absolutely love his stories! :)

@jessecax No, it is ...
By: ytmoog. on 04 Sep 10, 11:11:42
@jessecax No, it is the properties of the material not whether there is air about which makes the difference.

so if you went into ...
By: jessecax. on 04 Sep 10, 08:52:42
so if you went into space the ring wont be gold

@zeeneo we try our ...
By: periodicvideos. on 03 Sep 10, 07:54:18
@zeeneo we try our best! :)

harvesting gold ...
By: PrivateSlacker. on 02 Sep 10, 15:38:22
harvesting gold from the sea would backfire economically. No matter how secret you try to keep it, the news that gold is pouring out of somewhere would set off an espionage war to dwarf that over the atomic bomb. Eventually everyone would know how to do it. Then the supply of gold will explode and cheapen it. Then all these currencies based on gold during the early 1900s would crash. Causing a worse depression than what happened.

@SchumiUCD Great ...
By: Moriarty2112. on 02 Sep 10, 05:07:42
@SchumiUCD Great comment - you made me laugh! I was brought up close to Castleblaney, Monaghan - not quite Northern Ireland but damn close. I only became conscious of the distinction between the pronunciation of "tree" and "three" when I started lecturing here in Nottingham... All the best, Philip (speaking in video from ~ 1:35 onwards)

I love the 2nd guy ...
By: captwasabi. on 02 Sep 10, 00:56:12
I love the 2nd guy talking. You can tell that his brain wants to tell us so much but his mouth just isn't moving quite fast enough. I've been there soooooo many times. Great vids! Thanks for them all.

A nice simple ...
By: glenwoofit. on 01 Sep 10, 21:33:43
A nice simple explanation by someone who looks to get really excited by the science! lol.... I think he needs to take some Valium before the next video as it might keep him from dancing infront of camera, Ants in pants or what! Only joking, Great Video....

@Moriarty2112 ...
By: Dante396. on 01 Sep 10, 19:22:17
@Moriarty2112 thanks for clearing up that word, i didnt catch it quite well :P

@brainstorm90 He's ...
By: SchumiUCD. on 01 Sep 10, 19:10:23
@brainstorm90 He's from Northern Ireland. If you go to the right place, you could have a fascinating discussion over whether he's British or not. I wouldn't recommend it though!

Video production / ...
By: zeeneo. on 01 Sep 10, 17:03:51
Video production / editing and presenters are getting better. Loving the videos. Keep it up.

question why didnt ...
By: thadude1337. on 01 Sep 10, 12:38:24
question why didnt they just try to make gold out of the salt??? that has got to be cheaper then failing in the sea

I love this guy, he ...
By: ShadowsHeat. on 01 Sep 10, 06:34:31
I love this guy, he has the stereotypical mad scientist look.

@norxcontacts I ...
By: DG121480. on 31 Aug 10, 16:56:12
@norxcontacts I think in a round about way, this guy just told you to piss off...

@TomMarAlem1987 ...
By: PianoKwanMan. on 31 Aug 10, 15:44:18
@TomMarAlem1987 They got invaded. And their mines exploited by The spanish or portuguese (i forget), then britain.

@periodicvideos oh, ...
By: HerrCameron. on 31 Aug 10, 15:31:11
@periodicvideos oh, i thought he was russian?

@brainstorm90 nope, ...
By: HerrCameron. on 31 Aug 10, 15:30:46
@brainstorm90 nope, he's russian

@mcjhn Apologies ...
By: Moriarty2112. on 31 Aug 10, 15:14:03
@mcjhn Apologies for my impenetrable accent! The (collective) electron oscillation is called a plasmon. Philip (speaking in video from ~ 1:35 onwards)

Professor Moriarty ...
By: xxxvsxxx. on 31 Aug 10, 14:17:54
Professor Moriarty reminds me of Sherlock Holmes rival...

@Direkin neither ...
By: brainstorm90. on 31 Aug 10, 13:34:59
@Direkin neither british

@brainstorm90 He ...
By: Direkin. on 31 Aug 10, 11:57:02
@brainstorm90 He doesn't sound remotely German either...

Moriarty. Professor ...
By: pwn0grapher. on 31 Aug 10, 07:08:55
Moriarty. Professor Moriarty.

@brainstorm90 ha ha ...
By: periodicvideos. on 31 Aug 10, 06:25:24
@brainstorm90 ha ha... he's Irish!

can you make a gold ...
By: zbret. on 31 Aug 10, 05:30:18
can you make a gold nanoparticle solution that is blue or violet, or for that matter reflecting UV? Or, does its color stop in the orange-yellow range and is limited to red (perhaps IR?) up to the normal gold-yellow-orange color?

@coffeebuzzz I can ...
By: taofledermaus. on 31 Aug 10, 05:07:05
@coffeebuzzz I can look back at all the teachers I've had and can only think of one or two that really showed the passion of teaching that motivated me to really want to learn.

Gold & Casio Watch - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 544 seconds

We take a look at the element Gold - and attempt an experiment with a Casio watch. More videos at http://www.periodicv ideos.com/

Related: gold, watch, casio

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Latest comments made on this video:

Couldn't you just ...
By: godfearer62690. on 06 Sep 10, 11:02:33
Couldn't you just electroplate it?

Neil can create ...
By: thewordupbro. on 03 Sep 10, 16:15:19
Neil can create gold from lead using only his bare hands.

Thank you! It's ...
By: merlinchanelle. on 02 Sep 10, 04:34:33
Thank you! It's always cool stuff that you are doing and explaining and I really appreciate that scientists like you, take the time the put there knowledge on you tube Sorry about the mistakes in my writing I?m not English.

the rich man's F91-W
By: chupachipmunk. on 02 Sep 10, 02:10:10
the rich man's F91-W

@G3org3Master It's ...
By: TheLaxOne. on 31 Aug 10, 20:22:14
@G3org3Master It's the melting point of gold. LOL

@G3org3Master ...
By: ghuegel. on 31 Aug 10, 15:08:33
@G3org3Master 1337 K is the melting point of gold. Good to know.

1:06 and that's why ...
By: Zepherus14. on 31 Aug 10, 15:00:21
1:06 and that's why gold is used in electronics and not the better choice of silver

Neil. Need more ...
By: pepsibookcat. on 31 Aug 10, 14:33:17
Neil. Need more Neil.

Can a mirror ...
By: AnPaintTonic. on 31 Aug 10, 04:39:01
Can a mirror surface be made out of gold? By any process I mean.

what happens when ...
By: killernat. on 31 Aug 10, 00:29:17
what happens when chemists get board 1 play with alklie mettals 2 play witch acids 3 gold plate something

poor brady ,neil ...
By: mahirharoon. on 30 Aug 10, 18:46:13
poor brady ,neil could have covered the screen

Did the watch ...
By: ZorkFox. on 30 Aug 10, 18:33:02
Did the watch survive the boiling gold temperatures? That'd be a nice advertisement for Casio. ;)

Nice stuff
By: Intervene. on 30 Aug 10, 11:14:15
Nice stuff

Question; you've ...
By: Ceevro. on 30 Aug 10, 02:27:01
Question; you've shown evaporation producing gold gas/condensation, but does arcing high voltage through gold produce monatomic gold powder?

1337 anyone? 1:12
By: G3org3Master. on 30 Aug 10, 01:15:00
1337 anyone? 1:12

Some splendid hand ...
By: crabbygaz. on 29 Aug 10, 23:13:23
Some splendid hand waving from Prof today, he must have had three shredded wheat.

did not know that ...
By: vlvl21. on 29 Aug 10, 23:09:20
did not know that this method was possible...Cool.

@periodicvideos na ...
By: asdasdasdasdasdas98. on 29 Aug 10, 22:55:04
@periodicvideos na i just thought that was wasteful and inefficient, but thanx for the response. :-)

holy crap ...
By: muhammadyousuf1. on 29 Aug 10, 22:42:10
holy crap evaporating metal

So who has to buy ...
By: Malithion2001. on 29 Aug 10, 20:48:58
So who has to buy Neil a new watch? Haha.

@EvanLHarper Like ...
By: doverlin. on 29 Aug 10, 19:36:51
@EvanLHarper Like you said, this is a chemistry thread, but one last response. You stated: "All money in human history was commodity money, up until 1914 . . . " One example: explain the split tally sticks in medieval England. Completely fiat and not commodity based. Another example: the Roman denarius was debased from almost pure silver to 2% silver - technically you could say it was commodity based, because it was made of metal. However, the face value was much less than the silver value.

@doverlin There's ...
By: EvanLHarper. on 29 Aug 10, 19:11:48
@doverlin There's no empirical evidence of a "cycle" in which commodity money and fiat money alternate with each other. All money in human history was commodity money, up until 1914, after which there was an uneven transition to fiat money culminating in 1973. The current system of semi-independent central banks controlling the money supply, with flexible exchange rates, seems to be doing OK. Rumors of Tungsten-filled bullion in Fort Knox are spread by shady gold coin dealers talking their book.

@EvanLHarper Yes, ...
By: doverlin. on 29 Aug 10, 19:06:37
@EvanLHarper Yes, I've heard the rumors of tungsten filled gold. No conclusive evidence has been forthcoming that I know of. The story indicates that the gold is cast around the tungsten, not plated which would be easily detectable. I think it behooves the US to do an audit of the gold reserves soon to verify the gold is there and that the purity is as stated in the records. Its been decades since the last audit.

@EvanLHarper Q: As ...
By: doverlin. on 29 Aug 10, 18:48:41
@EvanLHarper Q: As to the US commitment to a gold standard - no kidding. They cheated. More currency was issued than there was gold to back it up. France forced the issue when it sent naval warships to collect gold for their dollars. Any system where money is issued as debt is a ponzi scheme. When the scheme implodes, as it always does, gold is standing ready during the transition period. This same cycle has happened repeatedly through out a couple of thousand years of history.

@Doverlin To take ...
By: EvanLHarper. on 29 Aug 10, 18:43:15
@Doverlin To take this discussion back to chemistry, I once heard a conspiracy theory that the central bank vaults are full of not gold bullion, but TUNGSTEN bullion, with only a thin layer of gold covering it by Chemical Vapour Deposition, the process depicted in this video. Tungsten has almost exactly the same density as gold, but it's much much harder, so the scheme wouldn't work. You could cast a gold outer shell around a tungsten core, though. (Remember the World Cup trophy video?) :-)

Frog Poison - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 434 seconds

An invisible speck of this chemical is enough to kill a human. More chemistry at http://www.periodicv ideos.com/
Dr Robert Stockman discusses Histrionicotoxin.

Related: histrionicotoxin, frog, poison, toxin, arrow, dart

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Latest comments made on this video:

@GetMeThere1 You ...
By: ninjajesus81. on 07 Sep 10, 04:57:17
@GetMeThere1 You said my comment was pointless, so I said you responded to my pointless comment with a pointless comment. The comment I made that you said was pointless had no questions in it.

@ninjajesus81 : ...
By: GetMeThere1. on 07 Sep 10, 04:41:38
@ninjajesus81 : Strange....I note three sentences in your comment...and two question marks. Please forgive me for interpreting those as questions.

@GetMeThere1 I ...
By: ninjajesus81. on 07 Sep 10, 03:38:11
@GetMeThere1 I didn't ask a question.

@ninjajesus81 says ...
By: GetMeThere1. on 07 Sep 10, 03:29:09
@ninjajesus81 says "so you responded with a pointless post of your own?" I responded to your question.

@GetMeThere1 You ...
By: ninjajesus81. on 07 Sep 10, 02:57:55
@GetMeThere1 You thought my comment was pointless so you responded with a pointless post of your own? So any comment you deem unnecessary or not useful, you just respond back to them in a curt manner? What would society do without you?

@ninjajesus81 : I ...
By: GetMeThere1. on 07 Sep 10, 02:52:56
@ninjajesus81 : I looked up "Histrionicotoxin." I thought your comment was pointless, I only related the information--anyone can look it up, research it further, or do as they please--a comment on my comment isn't necessary or useful. As I'm a biologist, the phenomenon of the frog isolating it rather than making it is particularly interesting to me. Faster breeder insects seem more likely to create a totally new compound more quickly than slower breeding frogs.

@GetMeThere1 What ...
By: ninjajesus81. on 07 Sep 10, 02:00:36
@GetMeThere1 What article did you read? I was looking at the poison dart frog article and it said it wasn't conclusive if it could make it or not. Did you seriously just get upset over my comment?

@ninjajesus81 : Uh, ...
By: GetMeThere1. on 07 Sep 10, 01:26:57
@ninjajesus81 : Uh, and maybe the article said they didn't. Maybe anything, OK?

@GetMeThere1 Maybe ...
By: ninjajesus81. on 07 Sep 10, 01:20:46
@GetMeThere1 Maybe they do make it, but the ingredients they need to make it are all from different insects.

More organic chem ...
By: opiumgland. on 06 Sep 10, 00:22:54
More organic chem and biochem and pharmacology videos please. Some of the reactions are quite telegenic (the most popular show in the US was Breaking Bad if I'm not mistaken)

I have severe RA so ...
By: realcrunchyfrog. on 02 Sep 10, 14:55:50
I have severe RA so I know from pain, I saw a documentary on a pain treatment using capsacin to exhaust the "substance p" which is the neurotransmitter for pain and this supposedly keeps one pain free for about a month.

He mentioned ...
By: GetMeThere1. on 02 Sep 10, 11:32:07
He mentioned something along the lines of "The frog doesn't need to make much of it..." and "over the years they developed this compound..." Wikipedia says that it's likely that this particular compound--as well as most other poison dart frog compounds--are not made by the frog, but isolated from the insects they eat.

nice history lesson ...
By: megaverse. on 31 Aug 10, 20:14:15
nice history lesson ...thanks

i hope no one is ...
By: andythewooferguy. on 31 Aug 10, 07:32:51
i hope no one is deaf in the right ear, i can hear the sound on the left

What he MEANT to ...
By: mrfamous333. on 31 Aug 10, 07:21:32
What he MEANT to say is, "Frogs are theorized to have evolved..."

you should do more ...
By: smashbar333. on 30 Aug 10, 19:37:31
you should do more poison movies, other chemical poisons would be nice to see =D

@imover18gotityube ...
By: mshaw88. on 30 Aug 10, 17:16:18
@imover18gotityube dammit only my right ear works

Love all of these ...
By: viper100200. on 29 Aug 10, 18:30:18
Love all of these videos. Perfect for a chemistry nerd like me

@MadPuppets1 what ...
By: periodicvideos. on 29 Aug 10, 14:22:15
@MadPuppets1 what do you want us to follow up?

please,please, ...
By: MadPuppets1. on 29 Aug 10, 07:15:53
please,please,please make a follow up to this video

So have you guys ...
By: aeroscope. on 29 Aug 10, 06:19:57
So have you guys figured how to synthesize the molecule or are you still in the process of finding that out?

@n310ea this isnt ...
By: olympicfan2. on 28 Aug 10, 20:20:52
@n310ea this isnt pete

@Kyleidge it's ...
By: Sparxdd. on 28 Aug 10, 16:38:39
@Kyleidge it's probably someone's hobby. haha

Hmmm, careful Brady ...
By: yellowmetalcyborg. on 28 Aug 10, 13:22:09
Hmmm, careful Brady, I know this is a chemistry video but it might give the wrong people the wrong ideas. You said the quantity needed to kill a human, where to find it, shelf life and how to get it out of the frog on a video that anyone in the world can see. I'm scared now!

I'm am now ...
By: BrainSalad212. on 28 Aug 10, 05:37:35
I'm am now terrified of frogs

Phosphorus (updated) - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 229 seconds

Phosphorus is element 15 on the periodic table. Videos about every element at http://www.periodicv ideos.com/

Related: phosphorus

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Latest comments made on this video:

zomg... I love the ...
By: yargh92. on 29 Aug 10, 00:14:25
zomg... I love the prof's tie! It's fantastic!

what happened to ...
By: cosmosvision. on 28 Aug 10, 20:28:17
what happened to the presenter/professor in this video, he's not on any of the recent videos any more?

Excellent, ...
By: KalahariSurf. on 27 Aug 10, 03:45:44
Excellent, informative vid. And i love the tie

I love these videos ...
By: Pygar2. on 25 Aug 10, 01:49:20
I love these videos... they're even more fun than watching "Look Around You", which does bear, I must admit, some faint resemblance...

keep filming the ...
By: brenoakiy. on 24 Aug 10, 21:06:46
keep filming the way you do! I think the video becomes more more natural, dynamic...

nice tie ;p ~Nout
By: mopsnuf. on 24 Aug 10, 15:25:17
nice tie ;p ~Nout

ZOMFG!!! that tie ...
By: khorne90. on 24 Aug 10, 13:22:18
ZOMFG!!! that tie is f*king awsome!!! Great vid btw ;D

@periodicvideos Gah ...
By: nokomarie1963. on 24 Aug 10, 09:04:02
@periodicvideos Gah. Naturally I was being obvious but I don't read all the responses, do I? That would be your job. The same to keep your student's interest. Not so easy to do. Just stop the videos if you do not want to address nuclear accidents or medicinal poisoning. The Internet is awkward. I wish you all the best.

@nokomarie1963 ...
By: periodicvideos. on 24 Aug 10, 08:37:32
@nokomarie1963 thanks, that's kind of how I feel and said so in my response to @genericmember1

Great vid
By: Intervene. on 24 Aug 10, 08:32:04
Great vid

@genericmember1 Hi. ...
By: periodicvideos. on 24 Aug 10, 08:29:26
@genericmember1 Hi... you don't sound mean and no investment is required. I own three tripods (that's how we film experiments from multiple angles).... I just feel there's a glut of science videos on YouTube in which people plonk cameras on tripods. I find them either too amateurish or too obviously professional, depending on the execution. I want ours to look different. I know it's not to everyone's taste and all feedback is appreciated - especially when it is so polite and well written! :)

I do think it does ...
By: nokomarie1963. on 24 Aug 10, 07:01:16
I do think it does well but I really advise against getting too smooth in your videos. When the freshness goes out, stop. Don't get too practiced because you will loose your charm. A slightly surprised professor is interesting, a lecture for the one hundreth time is boring as hell for everybody.

I want that tie :D
By: Qwertybobz3. on 24 Aug 10, 02:16:36
I want that tie :D

@crinoid1919 Sorry, ...
By: Pygar2. on 24 Aug 10, 01:24:12
@crinoid1919 Sorry, I don't have a time machine.

Omg I bought that ...
By: TitaniumRock. on 23 Aug 10, 20:26:07
Omg I bought that mug for my Dad's birthday!

ask the ...
By: crinoid1919. on 23 Aug 10, 20:16:07
ask the palistinians about white phosphorus

@TheFounderUtopia ...
By: emilen2. on 23 Aug 10, 18:41:03
@TheFounderUtopia My bad. :) Thanks for aiding my heearing.

Doesn't it react ...
By: Sniperalexxx. on 23 Aug 10, 17:59:47
Doesn't it react with the oxygen dissolved in water?

@fugehdehyou No it ...
By: DanDiatomic92. on 23 Aug 10, 16:39:48
@fugehdehyou No it is alkaline metals that are stored under oil because they react so rapidly WITH water :)

@fugehdehyou No Its ...
By: olympicfan2. on 23 Aug 10, 12:27:29
@fugehdehyou No Its water

Its stored under ...
By: fugehdehyou. on 23 Aug 10, 10:21:07
Its stored under oil isnt it? not water?

nice
By: tailr. on 23 Aug 10, 10:03:55
nice

I wonder what ' ...
By: x86freak. on 23 Aug 10, 09:27:28
I wonder what 'reactions' one could get with that epic tie ?

@Kargoneth me ...
By: y512516. on 23 Aug 10, 07:02:53
@Kargoneth me neither

I've never even ...
By: Kargoneth. on 23 Aug 10, 06:55:31
I've never even heard of black phosphorous...

Toast to Tony - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 273 seconds

The Professor pays tribute to his old friend and acclaimed historian, Tony Judt.

Related: tony, judt

Display Video Comments | Hide Video Comments | Add Comment

Latest comments made on this video:

This was immensely ...
By: tikkahunter. on 05 Sep 10, 22:33:43
This was immensely moving, thank you very much.

Epic
By: MrBCMarijuana. on 05 Sep 10, 16:28:58
Epic

@periodicvideos My ...
By: TheNemestrinus. on 03 Sep 10, 01:46:50
@periodicvideos My thoughts go to those that Tony has left behind, and I think that it was a very nice gesture for you to make this video. A very good choice of vodka too, if I may say so.

sorry for your loss ...
By: 5thPeriodMassacress1. on 02 Sep 10, 19:48:14
sorry for your loss professor, RIP Tony

so sad, thanks for ...
By: insectboy0. on 01 Sep 10, 21:25:49
so sad, thanks for telling us about this interesting man and sharing your personal feelings

I really envy the ...
By: Shoon84. on 30 Aug 10, 02:39:33
I really envy the Professor. To have spent time with Tony Judt is a privilege. You can tell much about one person by observing the company he keeps. This video speaks volumes about both Judt and the professor.

im speechless, i ...
By: Zaxaz1990. on 29 Aug 10, 14:31:51
im speechless, i need Words. R.I.P Tony

I am very sorry to ...
By: redcrowdesign. on 26 Aug 10, 03:41:59
I am very sorry to hear about your loss sir, my most sincere condolences. Hope time can cure this scars.

Sorry for your loss ...
By: kawana87. on 25 Aug 10, 06:32:05
Sorry for your loss professor :(

This is one of the ...
By: cepson. on 24 Aug 10, 03:18:35
This is one of the most moving things I have ever seen. Bless you.

My sympathies go ...
By: alphachuck. on 21 Aug 10, 04:38:10
My sympathies go out you and those who were touched by Tony Judt. Thank you for sharing and celebrating his life through one of your videos and opening your hearts to the public.

Well done.
By: CrookedPenPress. on 20 Aug 10, 18:04:15
Well done.

Thanks to everyone ...
By: periodicvideos. on 20 Aug 10, 11:09:31
Thanks to everyone for their very thoughtful comments!

My deepest ...
By: Jnashalt. on 19 Aug 10, 12:29:33
My deepest sympathies go out to a fellow chemist, at such a time grief.

You're a good man ...
By: omegacds. on 19 Aug 10, 00:22:57
You're a good man Prof. And you get better looking as you get older.

5 people missed the ...
By: williamkendrick. on 18 Aug 10, 22:33:48
5 people missed the like button.

That was a rough ...
By: Anonymous5211987. on 18 Aug 10, 09:38:21
That was a rough video to watch, i've lost friends and it's hard.

a great man; a ...
By: tommatdan. on 17 Aug 10, 13:37:41
a great man; a great man

Very well said ...
By: denisfilming. on 17 Aug 10, 13:14:13
Very well said professor. cheers!

What a touching ...
By: edthemad. on 17 Aug 10, 01:33:15
What a touching video. He must have been a great friend to you, he won't ever be forgotten. May he rest in peace.

nice work, guys. ...
By: pcleddy. on 16 Aug 10, 20:33:06
nice work, guys. and gals.

@BasherCoon mabye ...
By: TheBurningSeraphim. on 16 Aug 10, 14:10:45
@BasherCoon mabye they didnt like it couse it made them sad.

May he rest in ...
By: IAINMAN96. on 16 Aug 10, 09:40:30
May he rest in peace. Very nice thing you've done.

absolutely toching. ...
By: MADNEXXION. on 16 Aug 10, 04:39:48
absolutely toching... may i can not sorry enough to understand your loss, but the video really do reach the bottom of the heart enough. he was a brave man to keep fighting like that

Well done Prof, top ...
By: crabbygaz. on 15 Aug 10, 18:11:35
Well done Prof, top tribute to a top man.

Chemistry in the Clouds - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 259 seconds

Making Cisplatinum on top of Mt Snowdon. Make a donation at http://www.justgivin g.com/MosesResearchG roup
John Moses group of chemists climb Mount Snowdon and synthesis the anti-cancer drug Cisplatinum (or Cisplatin) in a small tent at the summit.

Related: cisplatin, snowdon, john, moses

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Latest comments made on this video:

i really thought it ...
By: SolidArch. on 26 Aug 10, 18:38:37
i really thought it was about clouds

NICE VIDS
By: brocktherock68. on 22 Aug 10, 02:58:09
NICE VIDS

@periodicvideos :P
By: IAmAVeryFatMan. on 20 Aug 10, 18:32:21
@periodicvideos :P

LOL @ 3,560 summit. ...
By: CommonRaven. on 20 Aug 10, 11:49:24
LOL @ 3,560 summit. It's a foothill! Great vid! I really enjoyed the personal meaning behind it. Beautiful countryside for sure, the world is a giant, beautiful place!

@IAmAVeryFatMan ...
By: periodicvideos. on 20 Aug 10, 11:08:25
@IAmAVeryFatMan would love to do some of them.... might cost us a bit in airfares though!

and we have to find ...
By: gundrag000. on 20 Aug 10, 00:49:59
and we have to find the real best correct way to cure cancer.. the ultimate correct way. but I think also nobody trys it. becuz all people don't do own favorite. all you do famous thing than ur favorite.

we have to use ...
By: gundrag000. on 20 Aug 10, 00:41:02
we have to use animals and etc.. I want to know when some animal or plant or insect got cancer, how they cure it. but I think nobody trys it...

4:10 "higher up, ...
By: IAmAVeryFatMan. on 18 Aug 10, 23:59:11
4:10 "higher up, or lower down" (just taking my comment to the extreme, as i hope you might do in your travels) Bottom of the Grand Canyon (innit a mile or so deep?) Death Valley (extremely hot) Antarctica (or a meat freezer :D ) (extremely cold) In a weightless environment (that jumbo jet, "The Vomit Comet", makes a feeling of weighlessness)

@LolxDBart I don't ...
By: spacemonkeyjim. on 16 Aug 10, 23:26:27
@LolxDBart I don't know about now, but when I climed Snowdon a few years ago there was a pub at the top...hmmm!

@captwasabi It'll ...
By: cyrilthefish. on 16 Aug 10, 00:02:28
@captwasabi It'll be to contain sheep most likely :)

u seem like a nice ...
By: MadMacheart. on 15 Aug 10, 14:21:10
u seem like a nice guy. hope to see you and ure students in future vids :D

I just looked ...
By: lambogeek. on 13 Aug 10, 19:24:04
I just looked through my new chemistry books today , and lo and behold, a whole section on the properties of cisplatin!

@frogspawn11 My ...
By: captwasabi. on 12 Aug 10, 21:06:06
@frogspawn11 My comment was mostly in jest. I was poking fun at the highly litigious nature of my statesmen which is rather legendary. Things like a NYC antique owner suing a homeless man for $1MM or a guy suing Michael Jordan for looking like him or a student suing his teacher for waking him up. Only in America.

@captwasabi why. ...
By: frogspawn11. on 12 Aug 10, 19:49:53
@captwasabi why. the fences are marking of the owners lands and the ppublic dont have right away across the whole field just the path and stiles are perfectly safe unless you do something silly or are drunk

@frogspawn11 Ah ha. ...
By: captwasabi. on 12 Aug 10, 17:44:55
@frogspawn11 Ah ha. See, here in the States we would call that "litigation waiting to happen."

@captwasabi it ...
By: frogspawn11. on 12 Aug 10, 10:11:43
@captwasabi it general to keep animals in the field the stile is needed for walkers to get over it

I'm just curious ...
By: captwasabi. on 12 Aug 10, 04:48:08
I'm just curious and unsure if this has been asked already but.....why build a barbed whire fence only to build a ladder over it?

Higher Brady! I ...
By: ThatKidKnows. on 12 Aug 10, 00:48:07
Higher Brady! I expect you do do Ben Nevis next!!!

instead of ...
By: BibleBurnr. on 11 Aug 10, 22:16:22
instead of chemistry in the clouds make a chemistry OF THE CLOUDS video would be much more interesting.

is there a specific ...
By: steadfast1984. on 11 Aug 10, 16:44:52
is there a specific reason you made that chemical on the top of a mountain?

I think chemistry ...
By: boiledcabbage06. on 11 Aug 10, 16:03:14
I think chemistry in the clouds was an absolutely brilliant idea.

Next step: deep ...
By: sarahkirky. on 10 Aug 10, 23:36:30
Next step: deep water chemistry! :)

looks like milk.
By: howtoletsplayccrs. on 10 Aug 10, 22:39:14
looks like milk.

@Wyndstarthedruid ...
By: PennyDorkis. on 10 Aug 10, 21:54:50
@Wyndstarthedruid lol

There's something ...
By: Direkin. on 10 Aug 10, 21:26:21
There's something very eccentric about climbing a mountain to perform a chemical reaction. Love it! :)

The Professor on Viagra
Posted by: periodicvideos

Video duration: 326 seconds

We get our hands on a pure sample of Sildenafil citrate, known to many as Viagra, and discuss a few properties of this "blockbuster" drug. More chemistry at http://www.periodicv ideos.com/

Related: sildenafil, citrate, viagra

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Latest comments made on this video:

@Neutrinoghost ...
By: bullets0000. on 05 Sep 10, 03:07:00
@Neutrinoghost You've missed the citrate.

LOL, maybe the ...
By: rockplannet1. on 03 Sep 10, 07:01:32
LOL, maybe the title is slightly misleading......

@zwnsnyde glad ...
By: periodicvideos. on 31 Aug 10, 06:29:34
@zwnsnyde glad someone likes it!

best video title ...
By: zwnsnyde. on 31 Aug 10, 05:59:56
best video title ever

Love the tie ;)
By: PerseusT. on 31 Aug 10, 03:23:36
Love the tie ;)

Husband: "Hi honey ...
By: Neutrinoghost. on 31 Aug 10, 00:31:10
Husband: "Hi honey I'm home" Wife: DAMN, is that some 1-[4-ethoxy-3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenylsulfonyl]-4-methylpiperazine in your pocket, or are you just pleased to see me?

@ivankurz ...69 ...
By: guitar23man23. on 29 Aug 10, 22:39:59
@ivankurz ...69 likes. lol.

2:47 are u ...
By: WiltonAdrianoNeto. on 26 Aug 10, 22:30:16
2:47 are u following me camera guy?...lol

Simply amazing. I ...
By: KingGoofy1. on 26 Aug 10, 06:51:12
Simply amazing. I hope I can keep that straight a face about such an amusing subject when I'm that age.

So, did the Missus ...
By: Roddyoneeye. on 25 Aug 10, 16:19:21
So, did the Missus smile when she read the title of this episode ?

Notify your ...
By: AttemptingReason. on 23 Aug 10, 09:30:11
Notify your physician if your blood vessels remain dilated for more than 6 hours

don't you need a ...
By: NormanBatesIsMyMum. on 22 Aug 10, 16:30:01
don't you need a prescription for that? how did he get hundreds of tablets worth posted to him?

Oh, good heavens, ...
By: pepsibookcat. on 21 Aug 10, 04:28:29
Oh, good heavens, toooooo many opportunities for puns and double entendres in this one. Even discussing a molecule's chirality is blushworthy in this one. Such cautious tact and discretion Professor (even if all of us viewers with even slightly dirty minds read far, far too much between the lines). *clicks on something nice and simple like cobalt or neon to cleans my rattled mind*

lmao pro tie
By: 2dlamb. on 20 Aug 10, 04:22:56
lmao pro tie

hey.. can you add ...
By: gundrag000. on 20 Aug 10, 01:21:05
hey.. can you add english sub ??? ..... and explanation..

@dashing502 ...
By: thedeadgirlXVIII. on 19 Aug 10, 23:17:29
@dashing502 intelligent people have higher amounts of copper in them than the average person. i think that is why his hair is poofy

He needs and afro ...
By: therabbitrevolution. on 19 Aug 10, 22:03:40
He needs and afro pick. please...somebody put an afro pick in his hair.

that is a sick tie! ...
By: TruAzn100. on 19 Aug 10, 21:02:50
that is a sick tie!!!!!

what's the name of ...
By: MegaAntMan1. on 19 Aug 10, 20:18:14
what's the name of this professor? he's... knida cool in his own way, the hair reminds me of Doc Brown from Back to the Future

well ain't he ...
By: Suzakusstar. on 19 Aug 10, 19:49:02
well ain't he doctor sexy?

I think he has ...
By: TheAshleighGall. on 19 Aug 10, 18:51:00
I think he has enough shortcuts on his desktop!

Wow old man, don't ...
By: loxeas. on 19 Aug 10, 18:42:06
Wow old man, don't use viagra, your hair Straighted up!

Haha it is quite ...
By: Azel247. on 19 Aug 10, 18:07:55
Haha it is quite embarrassing when blood vessels contract when you really want them to relax

so it works for the ...
By: mjufpn. on 19 Aug 10, 15:55:59
so it works for the brain too?

This professor uses ...
By: jmjarav. on 19 Aug 10, 14:03:54
This professor uses Sildenafil citrate as Shampoo?

Fluorine Reactions - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 310 seconds

Here's all the camera angles and slow motion footage of the fluorine reactions we filmed with Professor Eric Hope. It reacts with iron, carbon, iodine and sulfur. Main video is at http://www.youtube.c om/watch?v=vtWp45Eew tw

Related: fluorine, iron, carbon, iodine, sulfur

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Latest comments made on this video:

Yum ...
By: MusicalAndTall. on 07 Sep 10, 13:30:30
Yum electronegativity *drools*

Last 2 were the ...
By: Sunderas. on 06 Sep 10, 20:59:14
Last 2 were the best....

Looks like ...
By: nameofthepen. on 24 Aug 10, 04:04:41
Looks like Professor Hope was OK about snuffling up all those strange fumes.

I love how cotton ...
By: guitain. on 19 Aug 10, 19:17:57
I love how cotton sort of explodes, and then quite quickly becomes veeeeery black! The blue smoke of iodine? It was awesome!

the music reminds a ...
By: masacatior. on 13 Aug 10, 01:37:50
the music reminds a quite carl sagan's videos :)

Reaction with ...
By: b43e65f77. on 06 Aug 10, 18:25:14
Reaction with charcoal like electricity spark

no need to ...
By: b43e65f77. on 06 Aug 10, 18:23:08
no need to activation , very crazy and horrible

Fluorine should not ...
By: futurehelp. on 04 Aug 10, 14:12:22
Fluorine should not be allowed in the human body even in parts per billion,

The sulpher demo ...
By: TalksWithDirt. on 30 Jul 10, 01:10:40
The sulpher demo reminds me of Io the moon of Jupiter.

@StereoSpace Heat ...
By: FordPrefect23. on 29 Jul 10, 16:07:57
@StereoSpace Heat proof mats like that were usually made from Asbestos, I dunno if that's still the case now though I assume it is.

during the sulphur ...
By: bigdaveoncampus. on 25 Jul 10, 11:54:20
during the sulphur reaction is the heat from the reaction melting the sulphur, or is that the sulphur hexafluoride thats dripping down? and also, what if any of the fluorine didnt react and was floating around in the lab, wouldnt that be a bit toxic?

Of what material is ...
By: StereoSpace. on 24 Jul 10, 04:40:46
Of what material is the stage/platform? It's not reacting to the fluorine at all.

Thanks for posting.
By: mrericsully. on 23 Jul 10, 06:09:10
Thanks for posting.

=)) lol you're ...
By: jbrzenk1. on 22 Jul 10, 15:51:44
=)) lol you're right ! He looks so diabolical :)) You don't mess with him !!! :))

@unusedsn : ...
By: Frresh123. on 22 Jul 10, 12:33:22
@unusedsn : fluorine is a extremely powerful oxidizer and it does not burn - it instantly set things on fire which are able to burn, it doesnt need energy for this because of the oxidizing power. and it does not react with the air.

no way, the iodine ...
By: HazMatLabz. on 21 Jul 10, 19:13:34
no way, the iodine actually combusted? that's cool. btw, i heard that it's possible for asbestos to combust with chlorine trifluoride

Beautiful
By: dismutased. on 21 Jul 10, 13:35:22
Beautiful

Cool to see your ...
By: peeweethe1st. on 21 Jul 10, 13:18:25
Cool to see your using a cool soundtrack! But i nearly fell asleep :)

Next up: Liquid ...
By: trustthewater. on 21 Jul 10, 04:37:29
Next up: Liquid fluorine?

Sulphur ...
By: gate941. on 21 Jul 10, 02:01:15
Sulphur HexaFluoride, SF6 isn't it used as an insulation gas in High Voltage switchgear by power companies? Sulphur and 6 Fluorine atoms I would think would be very reactive!!!! The gas is heavier than air but after fault tripping I understand residues are carcinogenic. Is that true?

Can someone tell me ...
By: mike3667. on 21 Jul 10, 01:18:06
Can someone tell me what song is playing or what type of music this is?

does fluorine react ...
By: keggerous. on 20 Jul 10, 22:36:17
does fluorine react with the air at all? does it react with any gases or just the solids ur testing it on?

@sirhonkalot make ...
By: FUGGINGMAD. on 20 Jul 10, 22:17:19
@sirhonkalot make sure you post it on youtube!!

Beautiful. Thank ...
By: mottiain. on 20 Jul 10, 21:59:15
Beautiful. Thank you for this and all your other videos.

@SurferRosa79 hi... ...
By: periodicvideos. on 20 Jul 10, 18:29:18
@SurferRosa79 hi... yes this video is very much an added extra for people who just wanted to see each reaction in detail (as Fluorine is a bit more unusual)... We move through them a bit quicker in the "main" Fluorine video of course.

Fluorine (new) - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 402 seconds

We visit a fluorine expert to finally show you this incredibly reactive element in action. More chemistry at http://www.periodicv ideos.com/ Our thanks to Eric Hope at the University of Leicester.

Related: fluorine

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Latest comments made on this video:

That last bit about ...
By: nhojmabon. on 07 Sep 10, 01:22:18
That last bit about toothpaste was quite interesting, i never understood why flouride is used in toothpaste until now :)

He looks like a ...
By: Reavaverho. on 06 Sep 10, 15:26:28
He looks like a classic crazy scientist. Makes it way more fun.

here's that trick.. ...
By: MabelHaley9365. on 05 Sep 10, 21:24:46
here's that trick.. i clicked to mpthreefy (dot) com to convert this video to an mp3.

a great vid!!!!(in ...
By: ultrachemist13. on 04 Sep 10, 06:57:04
a great vid!!!!(in advance)lol

the fluorine-iodine ...
By: me835. on 01 Sep 10, 21:00:39
the fluorine-iodine reaction in slow motion: the smoke looks almost iridescent

@Efnantank lol ...
By: dodgegts3. on 31 Aug 10, 02:15:26
@Efnantank lol might be true.. but then again.. why are u watching it? xD A little bit of nerdish stuff doesnt hurt in this dumb world.

Hey, if you like to ...
By: TheKomedyClownKrew. on 29 Aug 10, 04:04:47
Hey, if you like to laugh, come check out my channel. We make short movies, spoofs, pardoys and just random videos =] So if you like to laugh. come check us out. And Remember to subscribe! =] Thank You

I WANT TO BRUSH HIS ...
By: TheMasterlooter. on 29 Aug 10, 01:32:01
I WANT TO BRUSH HIS FUCKING HAIR!!!!!!!!!!!!!

thank you for ...
By: tylerwalker2. on 27 Aug 10, 20:22:50
thank you for posting your videos! i learn alot from them and i will need to know this before i go into chemistry in grade 10 lol

@BlackSkullRacer613 ...
By: kevinmost93. on 27 Aug 10, 01:45:05
@BlackSkullRacer613 It's toxic because it can still react. A thermodynamically favorable reaction will usually occur regardless of the oxidation state of the atoms involved. Sodium/hydrogen fluoride are more thermodynamically favorable than elemental fluorine, but there are much more favorable compounds as well.

Hey sweet Video!!! ...
By: thegeekman1000. on 24 Aug 10, 21:31:58
Hey sweet Video!!! you guys should check out this video that i just watched! "Facebook password recovery for iPod/iPhone 100% WORKING!" /watch?v=yWiRsUWwOFw

Ionized fluorine ( ...
By: BlackSkullRacer613. on 24 Aug 10, 16:00:47
Ionized fluorine (fluoride) has what it wants, so why is it still toxic. Sodium fluoride is very toxic, and hydrofluoric acid is extremely toxic.

Nice video :D
By: FlyingDutchman2693. on 23 Aug 10, 16:33:49
Nice video :D

@Whitetiger60 It ...
By: vtblowschunks. on 23 Aug 10, 16:05:47
@Whitetiger60 It would not be the same, a flame thrower works by pouring a flamable liquid onto something that is set on fire. Fluorine reacts with anything (almost anything) it touches. A flame thrower would would not burn a hole throgh a steel wool sponge. The damage would not be caused by the chemical burning, but rather the chemicle reacting with what it touches. But you are probably right about it being too expensive.

@vtblowschunks ...
By: Whitetiger60. on 23 Aug 10, 15:44:49
@vtblowschunks would basically do the same as a flame thrower? set stuff on fire its probably to expensive to make and other stuff works better for cheaper

Hey sweet Video!!! ...
By: MrLukethegeek. on 23 Aug 10, 14:57:51
Hey sweet Video!!! you guys should check out this video that i just watched! "Facebook password recovery for iPod/iPhone 100% WORKING!" /watch?v=yWiRsUWwOFw

@MsWanderer1 ...
By: huntingvuk. on 22 Aug 10, 20:09:44
@MsWanderer1 phosgene is a pulmonary agent(choking) no Fluorine in it ..CO + CL2

@trinaandluke Yea ...
By: itwillbealright. on 22 Aug 10, 20:09:23
@trinaandluke Yea you should realize that discover magazine isn't exactly regarded as a reliable scientific source for all matters in the world of academia. Also, I'm a med student. It helps. Yes, I realize you're trying to condescend but it doesn't change the fact that you have a misconceived notion. Thanks.

Am I the only one ...
By: vtblowschunks. on 22 Aug 10, 18:04:05
Am I the only one that sees potential in the weaponization of Fluorine? Could you imagine a small bomb containing this highly reactive compound being dropped on something.

@itwillbealright ...
By: trinaandluke. on 22 Aug 10, 17:52:11
@itwillbealright Whoa dude, I guess Discover Magazine is wrong. You should check out 20 things you didn't know about teeth. I thought if I read Discover I could be smart, like you. If they are wrong about this, what else could they be wrong about?

why is it that all ...
By: marct33. on 22 Aug 10, 04:37:42
why is it that all smart people have weird hair.

S?rry ?o? ?ein? o?? ...
By: xxxdxdxdxxdddddxdxxd. on 22 Aug 10, 03:50:19
S?rry ?o? ?ein? o?? t????, but I'? ???in? t? ?et ?e????? ?? my ????? ?? an e? g????ri?nd, if ?ou wan?a s?e her ??? ??p? I ?ot ? l??? ?? ?? pr???le. ?as???r? ?s 123 . ?h????

I didnt know I was ...
By: JakeVera. on 21 Aug 10, 21:34:33
I didnt know I was gonna get a lesson from albert einsteins half brother ( :

Hes exactly what i ...
By: legoJmaster. on 21 Aug 10, 20:44:17
Hes exactly what i think of when i think of sience!!! And i learnt something too!!

damnit that asshole ...
By: craigelsnewdeal. on 21 Aug 10, 20:29:42
damnit that asshole made me learn something

Live in Turin - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 209 seconds

Highlights from our public lecture at the Science in the City event in Turin, Italy, part of ESOF2010. Our trip to Turin was supported by http://www.cost.esf. org/

Related: periodic, table, videos, turin

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Latest comments made on this video:

chemistry a nobel ...
By: somorastik. on 02 Sep 10, 20:52:13
chemistry a nobel science. Great trip to Turine. Thanks

mAAArvelous.
By: iuzarneim. on 19 Aug 10, 10:26:46
mAAArvelous.

what's the name of ...
By: hackycrema. on 19 Jul 10, 01:51:27
what's the name of the music in the backgrounds?

@Wizard4592 I'll ...
By: CrazyMonkey124. on 18 Jul 10, 22:48:49
@Wizard4592 I'll help :P You guys are great!

Yes, come to the ...
By: torpedotim9. on 18 Jul 10, 22:22:48
Yes, come to the states. We would love to see you in Seattle, my family and I.

looks like a few ...
By: williamkendrick. on 18 Jul 10, 21:54:04
looks like a few people missed the like button...

Viva Italia!!
By: Scrap5000. on 18 Jul 10, 21:46:24
Viva Italia!!

@sunbrek hope you ...
By: periodicvideos. on 16 Jul 10, 15:42:33
@sunbrek hope you also watch our videos on the sixtysymbols channel... they deal with plenty of physics and electricity!

@Wizard4592 Thanks. ...
By: periodicvideos. on 16 Jul 10, 15:41:36
@Wizard4592 Thanks... Fingers crossed you become rich then!

@periodicvideos if ...
By: Cickarn. on 16 Jul 10, 11:41:49
@periodicvideos if you really want to come to malaysia please let me know! thanks!

If I was rich, I ...
By: Wizard4592. on 15 Jul 10, 22:32:04
If I was rich, I would donate 1 million dollars to Martin and his crew....

The song in the ...
By: ben9345. on 15 Jul 10, 13:55:27
The song in the background was great! Anyone know it's name??

Wonderful! Show ...
By: MihaZ. on 15 Jul 10, 03:31:38
Wonderful! Show the full thing!!!! I wish I was in Europe, I would have done the whole trip.

From Venezuela and ...
By: sunbrek. on 14 Jul 10, 20:36:16
From Venezuela and Going To University. You Guys Makes Me wanna Study Chemical =) Sadly Im Going To Study Electric Engineering. Wish My son Studies Chemical. :) To Learn As Im Learning With you Guys =) Best Wishes. Keep Uploading This Awesomes Videos .=3

Oh, wow. Wow! Keep ...
By: trustthewater. on 14 Jul 10, 19:31:36
Oh, wow. Wow! Keep doing good and you'll continue to rise. I've been sharing your videos with every science enthusiast and/or teacher I can find. I know that even here in the US you all are becoming well known.

I was supposed to ...
By: signorellil. on 14 Jul 10, 15:12:07
I was supposed to go and see this lecture as I live in Turin not far from the Circolo degli Artisti where the lecture was held, but I became busy elsewhere, so I couldn't attend - now I'm quite upset I've missed it!

ya, the Serge Lang ...
By: pcleddy. on 14 Jul 10, 07:08:14
ya, the Serge Lang show was fascinating!

You guys really ...
By: kawana87. on 14 Jul 10, 06:23:18
You guys really need to come to Canada, Id love to see you live!

Whats the song ...
By: kawana87. on 14 Jul 10, 06:22:21
Whats the song playing in the background?

Are you guys ever ...
By: ElDoctorJanItor. on 14 Jul 10, 02:29:57
Are you guys ever coming to NYC?

Where can we get ...
By: KingsBlend1. on 14 Jul 10, 01:30:13
Where can we get tickets for 2011???!?!? lol

Congratulations to ...
By: BigNWide. on 14 Jul 10, 00:11:03
Congratulations to all the work you do. I should note, however, that the room in which you gave the lecture and demonstrations had no frescos (which are works painted in wet plaster). The walls of the room were instead adorned with bas-relief sculpture. I would still have loved to have been there and seen the deomnstrations and met some of you. I've used many your videos with my students.

This is beyond ...
By: AmatureChemist. on 13 Jul 10, 23:32:54
This is beyond amazing. I'm a little disappointed I don't see public lectures like this in the States. Once again, great video!

so far, i think ur ...
By: sorry8140. on 13 Jul 10, 22:18:39
so far, i think ur best vid is the easter egg in liquid N one. i hope u showed that to the .....presentees...... because it was funny and awesome.

ILUMINATI
By: abhay108. on 13 Jul 10, 21:51:20
ILUMINATI

The Mark of the Chemist - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 206 seconds

How can you tell if someone is chemist? Look at their hands. The Professor explains more in this video about a clever essay by Primo Levi. More videos at http://www.periodicv ideos.com/
Our trip to Turin was supported by http://www.cost.esf. org/

Related: chemist, primo, levi, turin

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Latest comments made on this video:

@FmMan33 LOL, No I ...
By: glenwoofit. on 02 Sep 10, 13:51:03
@FmMan33 LOL, No I mixed some Red P with Chlorate and boom, Bye Bye Finger.. I won't be doing that again....

@glenwoofit ...
By: FmMan33. on 02 Sep 10, 13:23:09
@glenwoofit experimenting with acid, and it ate up your finger?

I have a mark on my ...
By: glenwoofit. on 02 Sep 10, 12:23:37
I have a mark on my hand but mine is were something went wrong and i lost the top of my finger, the same finger your on about. My finger is OK now as they replaced it with the top of the other finger then skin grafted that one from my hip....

After seeing the ...
By: SocCapAth. on 23 Aug 10, 08:50:57
After seeing the phosphorus video and seeing the title of this video I was expecting some kind of small chemical burns hah

@gnomaz15 i think u ...
By: iuzarneim. on 20 Aug 10, 06:21:19
@gnomaz15 i think u meant to reply to autom4.. lol i simply expressed the humor i found in the last sentence. =] atta boy. now, go away and click on the right name ;)

@iuzarneim he's ...
By: gnomaz15. on 20 Aug 10, 00:17:53
@iuzarneim he's just old, dude... He's not nervous

@n4oliver LMAO!!! ...
By: iuzarneim. on 19 Aug 10, 10:23:29
@n4oliver LMAO!!! sorry, but the last sentence got me lol "b3 it really hit some nerve endings" =] god forbid.

i think he is ...
By: autom4. on 15 Aug 10, 13:58:45
i think he is either very nervous, or he has parkinson?

"like free masons". ...
By: CrusaderGundam. on 11 Aug 10, 01:01:39
"like free masons"...um that's not a good thing

haha - I majored in ...
By: johnmciann. on 04 Aug 10, 20:17:34
haha - I majored in chemistry, didn't finish (much to my regret), but I do indeed have the mark.

You have to admit ...
By: n4oliver. on 03 Aug 10, 13:54:55
You have to admit that we have some of the most unique occupational hazards. I have two marks: one from a shard of glass that was lodged in my thumb when the neck of a volumetric flask broke in my hands, and the other from wayward drop of sulfuric acid on my forearm, that went unnoticed for about a minute before it really hit some nerve endings.

Primo Levi and ...
By: BrutalDeluxe80. on 22 Jul 10, 22:09:47
Primo Levi and Martyn Poliakoff in the same video! Respect.

In the old days, ...
By: anonysquirrel. on 22 Jul 10, 09:14:07
In the old days, people would laugh when someone got injured. Thankfully, most of us have evolved.

I cannot wait to ...
By: blackwidowmollie. on 21 Jul 10, 22:04:39
I cannot wait to get my mark.

Wow, I have it and ...
By: CalvinHobbes71. on 18 Jul 10, 00:33:08
Wow, I have it and I did not know that this mark was so common, I felt like a fool when I got it, now I am proud of it, I guess.

cool! I'm relief ! ...
By: Revelde20. on 17 Jul 10, 00:15:47
cool! I'm relief ! I thought this video will tell me if my persuit to be a chemist was on of a fool trying to understand what is not for his undertanding! maybe the mark of a chemist is a remainder that to be a chemist one most endure the pain of failure!

My chemistry ...
By: CanDriveSoon. on 15 Jul 10, 03:01:46
My chemistry related mark would be all the holes left in my shirts due to acid residue left on lab benches.

@BasherCoon So ...
By: swanscot. on 14 Jul 10, 14:16:16
@BasherCoon So wrinkled, leathery-looking , fat-leached hands would be another good sign? of a (admittedly careless) chemist! Yes! I too suffer with leathery hands from my 1st career in histopathology. Hands were in and out of acetone, xylene, meths and formalin all day. Plus I acquired numerous acid burns.

lol we still use ...
By: Demonboy121. on 14 Jul 10, 08:27:41
lol we still use the old cork

I got a molten ...
By: zbret. on 14 Jul 10, 02:13:21
I got a molten KNO3 burn (OW!) about 20 years ago from early experimenting, leaving a mark like a branding iron. The scar became heart shaped - probably since I love chemistry! :) Thanks for the story, I knew early on not to mess with glass near your fingers though I did plenty of work with tubing - at least THAT mistake I avoided.

Fascinating! I ...
By: chemieisoveral. on 13 Jul 10, 14:39:38
Fascinating! I wrote a short blog entry about it on chemieisoveral.nl / weblog

can't stop noticing ...
By: aruzman. on 13 Jul 10, 06:21:46
can't stop noticing the tie

@periodicvideos ...
By: Balomega. on 13 Jul 10, 02:16:58
@periodicvideos thanks a lot for your reply

i have mine in the ...
By: Lontr3x. on 12 Jul 10, 23:49:12
i have mine in the thumb eheh

lol i have a mark ...
By: melekhthechanger88. on 12 Jul 10, 17:27:40
lol i have a mark for being in the lab but its from an acid burn, its not that bad at all but still like to think I have the mark of the chemist =p well i am a chemist so like to think i pass that test =p

Planar Methane - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 327 seconds

How can you create traditional methane-style carbon bonds which are planar (flat) rather than the traditional tetrahedral shape. Dr Stephen Liddle explains. His work (and our molecular video series) are supported by the EPSRC (Engineering and Physical Sciences Research Council). See more of our chemistry videos at http://www.periodicv ideos.com/

Related: methane, carbon, bonds, planar

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Latest comments made on this video:

The phosphorous ...
By: opiumgland. on 06 Sep 10, 07:17:05
The phosphorous atoms are planar with the lithium and the nitrogen?

I hadn't understood ...
By: Kabukita. on 24 Aug 10, 01:55:28
I hadn't understood a thing until my teacher explained molecular geometry in class. Then I showed the video to her to prove her wrong. =)

@wawabunny * ...
By: wawabunny. on 28 Jul 10, 16:19:20
@wawabunny * mistake T.T, note that, it should be sigma orbitals(MO) NOT pi orbitals(MO) although in some cases for metal complexes it will have pi MO THNKS

@Doogeedoo12 + @ ...
By: wawabunny. on 26 Jul 10, 17:28:44
@Doogeedoo12 + @mozarrell, i dont think they r still tlkin bout methane, as the chemical formulae and properties r diff. notice that the composition have change from CH4 to CLi2P2. in this context, what dey r tryin to say, is dat it's possible for a carbon atom to adapt a 4 planar shaped chem bonds when it is combined wif othr molcules/atoms. As theoretically it's quite impossible coz it's less stabe due to electon repulsion between the pi orbitals. The Dr just want to prve em wrng. thnks

O_o I feel ...
By: RSXdaLV. on 26 Jul 10, 06:39:17
O_o I feel something poisonous in air and i got a headache... Anyway, what's the chemicals used to poison cockroaches?

"these have got ...
By: sftf1. on 17 Jul 10, 11:46:40
"these have got nice, bulky benzine rings on it" say wuuuuuuuuut

ba da dum
By: pcleddy. on 14 Jul 10, 07:18:09
ba da dum

@periodicvideos ...
By: Evanator22742. on 14 Jul 10, 04:14:29
@periodicvideos Who actually responds to these comments and uploads the videos? Are you in the videos?

@mozzarell: I don't ...
By: loccysmif. on 14 Jul 10, 01:12:41
@mozzarell: I don't think it's still methane, as in that it carries the same chemical properties. It's just that this molecule is synthesized around something like a methane core, attempting to achieve planar angles for the satellite atoms around it. "Methane", here, is meant in a transitive sense, to describe a carbon atom surrounded by and bonded to four other atoms (and an entire web of other elements and benzene rings and what not).. IANAC though (I Am Not A Chemist)

@mozzarell ...
By: Doogeedoo12. on 14 Jul 10, 01:03:13
@mozzarell Basically, it's about taking the structure we already know of methane (tetrahedral) and 'squashing' it into a plane for fun. Carbon forms tetrahedron in its most stable state (diamond). They are looking to see if carbon's four bonds can be in a plane without the molecule coming undone. For example, carbon forms three bonds in a plane (graphite) and has free electrons in it. They want to see if it can do the same with four bonds. That's all.

Had a very small ...
By: AtheistGlitch. on 12 Jul 10, 15:35:43
Had a very small understanding of what was going on in this video. But I respect the drive to always know more about the world, even if it doesn't give us a useful application at that time.

Can someone explain ...
By: mozzarell. on 12 Jul 10, 03:39:41
Can someone explain to me how it's still methane when you've changed it from CH4 to that huge molecule? Or even when it's planar with the two lithiums instead of hydrogens? It's just plain confusing. It seems as if the only goal is to achieve a planar molecule with carbon at the center, and ditch the idea of methane. However, I'm not a chemist.

I just built the ...
By: oTHEBIGBOSSo. on 11 Jul 10, 15:41:15
I just built the molecule from the journal, It's slightly different from the one in this video (DIPP replaced with isopropyl group), is it another molecule or just a simplified model. The DIPP model type looks like a dragon!! Seriously!!! NICE WORK ON THE SYNTHESIS!!!!

Not exactley ...
By: JesusHChrist2000. on 11 Jul 10, 12:58:30
Not exactley methane anymore! I mean, Lithium chelated between Nitrogen?haha. Is this a better example of a planar carbon molecule than a carbon Nano tube because its centered on a single carbon?

It's fascinating to ...
By: TheFounderUtopia. on 11 Jul 10, 01:44:43
It's fascinating to watch a model of a complex molecule on screen, and someone explaining how it works and what properties the different componants have, it makes chemistry look like a giant game of lego! You've got the many different peices with different capabilities, being assembled in different orders and combinations just to see what you can make. Looking at it like that, it sounds really fun, and the fact that you can't build them by hand also makes it challenging. I wanna play too! XD

What would happen ...
By: Pitt0r. on 10 Jul 10, 23:37:27
What would happen if they took the planar methane out of the nitrogen atmosphere? In other words, how should I picture it becoming "unstable"? And why is it a solid instead of a gas like regular methane?

Looks a bit like ...
By: johnmacward. on 10 Jul 10, 17:26:49
Looks a bit like Charlie Brooker.

For when a new kind ...
By: ridelo. on 10 Jul 10, 12:09:10
For when a new kind of graphite with squares in stead of hexagons? Too unstable I suppose, unless someone knows how to fix that. Great video! Made me feel a bit of a chemist again.

Hi Notts crew, was ...
By: nickmt. on 10 Jul 10, 10:42:51
Hi Notts crew, was fascinated by yr video and showed it aone of my AS level chem groups as we've been studying shapes of molecules. One particular question came up which I want to ask Oli, the PG chap who made it on heir behalf is: "How many steps did this molecule take to synthesise and hence how easy was it to make?" Cheers

yeahh..... ...
By: machineheas. on 10 Jul 10, 06:46:58
yeahh..... rebelious chemestry!! fuck the tetrahedrical model hahahahah

@andersvj The more ...
By: johnclavis. on 10 Jul 10, 04:07:51
@andersvj The more we know about the properties of a molecule and how it behaves at the macroscopic scale, the better off the scientific community will be... perhaps, one day, somebody working on tissue regeneration or superbug vaccines or bioenergy will realize that planar carbon molecules are just what she's been looking for, and it'll be partially because of the work done today that we see here... kudos to all you periodicvideos people.. Humanity is doomed, but you're still doing great work!

@andersvj I know, ...
By: boiledcabbage06. on 10 Jul 10, 02:51:20
@andersvj I know, right? He's my favorite.

But it's not ...
By: Kabukita. on 10 Jul 10, 00:43:55
But it's not methane anymore... Or is it?

@andersvj agreed, ...
By: faylinameir. on 09 Jul 10, 20:43:39
@andersvj agreed, but then again whos to say in the future they won't find a use for it. =) I think a lot of things are like that.

This is my nerdy ...
By: IWantLandingSnow. on 09 Jul 10, 15:28:00
This is my nerdy escape (:

Sulfuric Acid - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 462 seconds

Stories of gruesome murders and a classic demonstration of sulfuric acid and sugar. More chemistry at http://www.periodicv ideos.com/

Related: sulfuric, acid, sugar

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Latest comments made on this video:

Always a nice rhyme ...
By: AlexSh789. on 06 Sep 10, 12:59:31
Always a nice rhyme to remember: "Ladies and gentlemen, do what you're ordered: Put the acid in the water."

Added water to ...
By: Zkoddi3. on 04 Sep 10, 23:20:08
Added water to Sulphuric acid once. I still have some marks on my hands and arm.

@speed0852 it did ...
By: macuser7080. on 02 Sep 10, 23:00:17
@speed0852 it did in fact react with the probe if u look at it when she pulls it out of the beaker at 3:00

Can you burn that ...
By: Neutrinoghost. on 31 Aug 10, 01:04:04
Can you burn that carbon like charcoal?

he has science hair
By: BigBensHelp. on 28 Aug 10, 10:31:03
he has science hair

HAIR !!!
By: nbaietti. on 27 Aug 10, 20:33:28
HAIR !!!

wont the ...
By: speed0852. on 27 Aug 10, 13:48:03
wont the thermometer's metal stick react with the sulphuric acid? o.o"

What is so funny to ...
By: alphakristjan. on 27 Aug 10, 13:10:56
What is so funny to her with that colum of carbon ?

Another great ...
By: chao129. on 23 Aug 10, 04:37:32
Another great warning for making sulfuric acid dilutions is to stir it as you add it to the water, otherwise it will settle in a layer under the water, and when you stir it, it will mix with the water all at once and start to bubble and spit.

I love when the ...
By: theturbocow. on 22 Aug 10, 22:32:03
I love when the professor uses dog toys as visual aids.

english is so ...
By: gundrag000. on 20 Aug 10, 01:49:58
english is so simple emotion language... I see it ... the text style says all.. english is not best. korea's character is best.

Turn on CC for this ...
By: FirEner. on 19 Aug 10, 20:49:34
Turn on CC for this video... 0:35 - 0:35 "phillips I have major" 1:15 - 1:17 "heat... because your full name" wrong memes to put into ya-tube, google...

0:08 Must... ...
By: SSJkiller. on 17 Aug 10, 19:45:34
0:08 Must... resist.... beavis-and-butthead mode.....

Out of curiosity, ...
By: Nightish. on 11 Aug 10, 20:00:23
Out of curiosity, doesn't that mean the black lump of carbon burn easily?

I wonder what ...
By: bobster451. on 09 Aug 10, 20:17:50
I wonder what happens to the sulphuric acid since all you are left with is carbon. Does it just go off as a gas? I would have liked to have seen a balanced equation and an explanation of the gaseous compounds that were byproducts of this reaction.

the stubed video
By: 1987salm. on 09 Aug 10, 09:33:17
the stubed video

@killerdustbunnies ...
By: Badgerinthenight. on 03 Aug 10, 16:53:28
@killerdustbunnies omg that's so fucking good.. more more more! :D

@MrTranceNinja ...
By: JoanneRepublic. on 31 Jul 10, 08:03:28
@MrTranceNinja Thank you, you made my day LOL

We did the sugar ...
By: logsonanopenfire. on 31 Jul 10, 04:41:08
We did the sugar experiment in science class, it created such a terrible stink like burnt marshmallow and melted plastic it filled your lungs and was so thick in the air you could taste it. O_O

@dumle29 But ...
By: Isenmouthe. on 29 Jul 10, 16:52:56
@dumle29 But normally you would use softwood charcoal, e.g. from pine.

@periodicvideos In ...
By: Isenmouthe. on 29 Jul 10, 16:49:19
@periodicvideos In High-school I've seen and? used 98% sulphuric acid, for measuring fat content in food and for making gun cotton, and yes it's very viscous, almost like maple syrup.

@periodicvideos In ...
By: Isenmouthe. on 29 Jul 10, 16:48:16
@periodicvideos In High-school I've seen and? used 98% sulphuric acid, for measuring fat content in food and for making gun cotton, and yes it's very viscous, almost like maple syrup.

@Isenmouthe nice
By: dumle29. on 29 Jul 10, 11:55:13
@Isenmouthe nice

I couldn't stop ...
By: PhoenX19. on 29 Jul 10, 04:07:56
I couldn't stop laughing at her description of the giant carbon turd.

@Isenmouthe ...
By: BlackSkullRacer613. on 26 Jul 10, 05:36:27
@Isenmouthe Hydrogen bonding makes a stong attraction between the hydrogen atom and the fluorine atom. What makes a strong acid is weak attraction between the molecules, for the water can pull the hydrogen off of the anion easily. HF does not pull apart easily, so it is not a strong acid.

Gun Cotton (nitrocellulose) - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 312 seconds

We celebrate our second anniversary with a video about cotton - and gun cotton. More chemistry from the University of Nottingham at http://www.periodicv ideos.com/

Related: nitrocellulose

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Latest comments made on this video:

great!!
By: ultrachemist13. on 04 Sep 10, 07:16:37
great!!

2:39 this ...
By: vitorix24. on 01 Sep 10, 22:52:30
2:39 this Nitrocellulose s so horrible. I can make very better than you !

One interesting ...
By: chemicallover78. on 25 Aug 10, 18:41:35
One interesting point I read on the snooker balls, made from gun cotton. As the balls got older the chemical became less stable. In the 1920s-30s in some mafia ran pool halls in the US. It was not unknown for old balls to explode when hit hard. This often lead to gansters pulling out there guns, thinking someone had been shot!! Old cinema film was also made from gun cotton. Alot of the early films were destroyed, as with age. They would burst into flames.

Neil is a dangerous ...
By: cepson. on 23 Aug 10, 05:00:49
Neil is a dangerous, dangerous man. Thank goodness he's on our side.

4:32 Is that why my ...
By: jHotmetala. on 22 Aug 10, 13:19:45
4:32 Is that why my pool table exploded?

He sounds so ...
By: Vennificus. on 17 Aug 10, 19:07:42
He sounds so disappointed at the end "no...Billiard balls are now made out of plastic :("

Lab Techs are the ...
By: UncleKennybobs. on 16 Aug 10, 00:25:17
Lab Techs are the strong, silent, alcoholic type.

OMG 1 MISSED THE ...
By: marcus1297. on 07 Aug 10, 13:29:51
OMG 1 MISSED THE LIKE BUTTON!!

Elephant Killer!!!
By: SideOutMedia. on 06 Aug 10, 03:33:59
Elephant Killer!!!

@culwin Neil has ...
By: FordPrefect23. on 29 Jul 10, 10:32:52
@culwin Neil has spoken and he sounds like a typical nottinghamshire lad, not to different to myself.

Neil = The stig. ...
By: AsRetard. on 25 Jul 10, 13:13:07
Neil = The stig. It's the truth.

Fender guitar picks ...
By: ThrowingItAway. on 22 Jul 10, 08:34:54
Fender guitar picks are made out of celluloid which is the Ivory like material talked about in the video. I made the mistake of lighting one on fire in chemistry class, not realizing it would produce such an energetic reaction.

i like neil he is ...
By: MegaGaga111. on 18 Jul 10, 17:51:33
i like neil he is really shy or doesnt like to talk but still helps everyone

Wait... Is Neil's ...
By: pwn0grapher. on 11 Jul 10, 07:10:40
Wait... Is Neil's last name "Norris"?

I made this today, ...
By: JakeKaje. on 08 Jul 10, 13:12:13
I made this today, will hopfully set it off tomorow wont it has dried

:36 i love how neil ...
By: spotlightman1234. on 05 Jul 10, 02:33:28
:36 i love how neil is like "ya i'm too cool to look at the camera" he's just awesome

I love this channel ...
By: greeneyedgeek. on 04 Jul 10, 15:45:12
I love this channel! who could actually dislike it? who's that lone 1 person??

Someone needs to ...
By: thespacewuk. on 03 Jul 10, 01:53:58
Someone needs to clean up his desktop...

Professor, clean up ...
By: KyuubiNaruto1337XD. on 02 Jul 10, 18:06:39
Professor, clean up your computer desktop, its loaded with icons. :)

2:35 WOA!!!!
By: Kowzorz. on 02 Jul 10, 01:36:23
2:35 WOA!!!!

Nitrocellulose is ...
By: Nighthawkinlight. on 01 Jul 10, 20:01:08
Nitrocellulose is still used today to make ping pong balls, nail polish, guitar picks, and many other useful objects. It is quite the universal material.

@Davidshark1 It is ...
By: Nighthawkinlight. on 01 Jul 10, 19:57:40
@Davidshark1 It is quite close, though NG takes quite a bit more care to make safely.

these guys love dog ...
By: Shkoltis. on 30 Jun 10, 16:13:11
these guys love dog toys

@Davidshark1 Very ...
By: BobStinkfulla. on 29 Jun 10, 22:35:42
@Davidshark1 Very similar, yes.

Probably I'm just ...
By: Davidshark1. on 29 Jun 10, 08:08:50
Probably I'm just flying, but isn´t it the same process as making nitroglicerin?

More Crude Oil - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 517 seconds

The Professor has a bit more on crude oil and Sam demonstrates an experiment she does with school groups. More chemistry at http://www.periodicv ideos.com/

Related: crude, oil

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Latest comments made on this video:

@KilgothMirna and ...
By: garrypig. on 19 Aug 10, 03:57:49
@KilgothMirna and thats a legit reason. rednecks can still be tough in and electric truck. doesnt mean they dont believe in the right things or same things as i do though.

I just noticed that ...
By: Vennificus. on 17 Aug 10, 19:16:27
I just noticed that I wasn't subscribed. huh. Gotta fix that

ummmmmmm nutella
By: robovicify. on 17 Aug 10, 14:12:43
ummmmmmm nutella

@BENBOBBY2 The ...
By: UncleKennybobs. on 15 Aug 10, 23:27:37
@BENBOBBY2 The videos are aimed at schoolchildren or Daily Mail readers.

@BENBOBBY2 ...
By: Aashish7K5. on 15 Aug 10, 15:05:12
@BENBOBBY2 Habsolutely hagree with hyou!

Thank you, sir! you ...
By: Aashish7K5. on 15 Aug 10, 14:56:44
Thank you, sir! you always give a interesting and LUCID explanation. Luv ur videos. You have hairs of Einstien and the brain and good thng u dont have that moustache.

i like her, shes ...
By: Harshfate. on 04 Aug 10, 17:29:57
i like her, shes hot!

@TheArmo1 is´nt it ...
By: thadude1337. on 31 Jul 10, 10:21:38
@TheArmo1 is´nt it demand and need that controls what kind of fuel u use since nobody need hydrogen the demand is practically none?

@thadude1337 no ...
By: TheArmo1. on 31 Jul 10, 02:57:52
@thadude1337 no bacteria can produce enormous amounts of it for nothing, its all political

@thadude1337 I'd ...
By: RSXdaLV. on 26 Jul 10, 07:29:33
@thadude1337 I'd chose water electrolysis or salt water electrolysis (Gives Cl2, O2, NaOH, and some H2 aswell, but it's more complex than just using water), but my main problem is with the wires, so far i have used Al and Cu, but eventually i can see that there is some green CuO and some i guess Cu(OH)2, not even speaking about what happens with aluminium, so if anyone can answer, what should i do, just try to use Cu wires and see if there's a real trouble about my wires or it's just fine as is?

is hydrogen hard to ...
By: thadude1337. on 21 Jul 10, 16:15:59
is hydrogen hard to extract cause it seams to be the best solution also how do u extract hydrogen

Leave the oil on ...
By: JB000001. on 10 Jul 10, 20:46:53
Leave the oil on the surface where it can be "scooped" up. The oil and water collected afterwards can be separated again using a centrifuge.

Oh, how PC: "Less ...
By: JB000001. on 10 Jul 10, 20:46:35
Oh, how PC: "Less oil... new sources of energy". Convenient disaster for the eco-fascists...

good video
By: Guinnie. on 06 Jul 10, 02:47:40
good video

Yes Professor, we ...
By: judymaehs. on 04 Jul 10, 16:07:29
Yes Professor, we do have a pitch lake in Trinidad. Folk come from all over the world to view it. It bubbles up with the thick black gooey stuff which eventually hardens into pitch.

Damnit it looks ...
By: charlegamer. on 04 Jul 10, 09:47:21
Damnit it looks alot easier to clean on the surface! Why the hell is bp sinking the oil with corexit?

The real reason why ...
By: KilgothMirna. on 26 Jun 10, 09:53:07
The real reason why chemists are pro alternate energy sources is because we want all the oil for ourselves to do chemistry with. But of course you can't tell that in public ;)

Thanks for the ...
By: Octoberskylight. on 25 Jun 10, 14:30:37
Thanks for the support, but we will always? use oil. Look around you, almost everything in your rooms in your house are made of oil.

You fine folks have ...
By: maekern. on 24 Jun 10, 17:59:37
You fine folks have been going beyond your original mission of providing abstract educational information (wonderful and important though that is) and are now providing a real public service in the form of scientific background information on important issues of the day. "Proper" news sources aren't doing nearly as good a job as you are. Thank you. Keep it up!

the oil looks like ...
By: mewrox99. on 24 Jun 10, 08:26:14
the oil looks like Marmite

@BeAnBeAn22 the ...
By: 01reyaz. on 23 Jun 10, 21:32:17
@BeAnBeAn22 the lake is quite isolated and the oil is too viscous (very very complex hydrocarbods). The top most layer most people can walk on its that thick. To thick to be ignited by a spark. But there are still precautions taken.

Thank you Professor ...
By: ndeplume08. on 23 Jun 10, 19:51:28
Thank you Professor and the rest of the Period Videos gang! You are GREAT! Keep the fantastic content coming!

the crude oil looks ...
By: dylz. on 23 Jun 10, 19:40:39
the crude oil looks like nutella... i'm hungry

this will sound bad ...
By: williamkendrick. on 23 Jun 10, 14:40:44
this will sound bad. but oh man, i love you guys, you rock sooooo hard

Professor reminds ...
By: DrLeroyGreen. on 23 Jun 10, 08:08:34
Professor reminds me a bit of Walter on "Fringe". /watch?v=OIeDWzls3gs

What happens when crude oil spills into the sea?
Posted by: periodicvideos

Video duration: 273 seconds

With crude oil still gushing into the Gulf of Mexico, we look at why oil and water shouldn't mix? More chemistry at http://www.periodicv ideos.com/

Related: crude, oil, gulf, mexico, bp

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Latest comments made on this video:

So true! ugetify ( ...
By: skate6416. on 06 Sep 10, 22:02:40
So true! ugetify (dot) com is the best website to get this song.

the duckling's ...
By: jakeweiq. on 25 Aug 10, 17:19:37
the duckling's expression @2:56 - 2:58 is like "What R u looking at?" LOL

What happens to the ...
By: quifred. on 19 Aug 10, 17:34:32
What happens to the tiny incapsulated droplets? I can't image they stay in the water for ever or do they?

13 idiots didn't ...
By: UncleKennybobs. on 16 Aug 10, 00:21:21
13 idiots didn't understand.

Isn't the reason ...
By: DeanMalenko. on 14 Aug 10, 21:45:51
Isn't the reason why birds swim on water because their bones are very hollow and filled with air and bring that extra buoyancy? Or is it simply to make them lighter so they can fly?

So..we should dump ...
By: SubparPanda. on 28 Jul 10, 01:14:10
So..we should dump feathers into the ocean? GIVE THIS MAN AN AWARD!! We should use the feathers from chickens!

HE'S HAD A HAIR CUT ...
By: AsRetard. on 25 Jul 10, 13:06:40
HE'S HAD A HAIR CUT :)

Science is great... ...
By: Vultur321. on 12 Jul 10, 20:25:23
Science is great... and his hair is awesome.. And all that commented like me are just jerks.. (for the hair part.. science is still great!)

@HyphyTheBboy they ...
By: DarkDeserter. on 12 Jul 10, 01:38:48
@HyphyTheBboy they have tried lol

wow fag
By: colton101998. on 10 Jul 10, 18:22:15
wow fag

Einstein grandson! ...
By: XxstryaexX1. on 10 Jul 10, 17:42:13
Einstein grandson! jk hey they should really plugg it up with foam

When you use crude ...
By: MazeleyFanClub. on 10 Jul 10, 07:21:55
When you use crude oil as shampoo, this is the result.

@Torrmac You ...
By: timtimBITCHES. on 09 Jul 10, 22:29:47
@Torrmac You ignorant motha fucka

they need to go to ...
By: sexybeastcory13. on 09 Jul 10, 00:43:21
they need to go to one of those factories that make pillows with feathers in them then tell them to give us the feathers than we drop that on the ocean an it would be easier to clean up

problem solved, ...
By: Torrmac. on 08 Jul 10, 06:13:55
problem solved, toss worthless birds into the spill.

that baby bird ...
By: xxABIGBOYxx. on 08 Jul 10, 00:27:49
that baby bird looks so bad ass xD

This is the first ...
By: vmystikilv. on 07 Jul 10, 13:42:49
This is the first time I acutally learned something on youtube......

hey im making a new ...
By: TheZarcario. on 06 Jul 10, 21:50:31
hey im making a new vlog everyday. you should check it out :)

lol "i haven't ...
By: Chunkyownyou. on 06 Jul 10, 03:47:25
lol "i haven't killed a bird to get it"

I love how they ...
By: HyphyTheBboy. on 05 Jul 10, 17:21:39
I love how they still haven't tried to plug that thing or clean it up.

Oil? What oil? i ...
By: KiLLAdetox. on 04 Jul 10, 20:34:10
Oil? What oil? i don't see any oil you're crazy MWAHAHA

I GOT IT!!! We use ...
By: alvarenga2007. on 04 Jul 10, 07:21:27
I GOT IT!!! We use pigeons!!!! NO one likes pigeons except old ppl, bcuz they feed them at the park, but who cares? I say we gather up all those rats with wings, rip of their feathers and use them to clean up as much oil as we can! Sounds good no? God im a genius!

thumbs up fo the ...
By: megagamer44. on 03 Jul 10, 15:23:32
thumbs up fo the awesome crazy mad scientist

solution: take shit ...
By: IceKingXxxRS. on 03 Jul 10, 06:50:53
solution: take shit load of birds and throw them in the ocean?

@jax1492 because ...
By: zman6033. on 03 Jul 10, 06:33:51
@jax1492 because they dont like people smarter than themselves helping makes them look stupid lol

Can you drink Heavy Water?
Posted by: periodicvideos

Video duration: 407 seconds

Here's even more about heavy water, or deuterium oxide, including a discussion of its role in World War II and whether it is dangerous to humans? Our main water video is at http://www.youtube.c om/watch?v=hUVzb0fzH sk

Related: heavy, water, drink, dogs

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Latest comments made on this video:

@PianoKwanMan lol ...
By: vandervalz. on 03 Sep 10, 18:14:38
@PianoKwanMan lol no.. i mean like 1 liter ?

@vandervalz as in 1 ...
By: PianoKwanMan. on 03 Sep 10, 12:35:22
@vandervalz as in 1 molecule?

how much does it ...
By: vandervalz. on 02 Sep 10, 18:37:47
how much does it cost to buy a heavy water?

"...that you might ...
By: me835. on 01 Sep 10, 21:17:22
"...that you might not get so dizzy. But you might be dead." ROFL

i love this guy
By: Rededededu. on 01 Sep 10, 04:24:54
i love this guy

@pacloro the ...
By: entoris476. on 30 Aug 10, 21:27:14
@pacloro the third form of of water called Tritium has radioactive properties T2O 3 Neutrons

I want that hair.
By: Messjuh1. on 29 Aug 10, 19:03:03
I want that hair.

Always a perfect ...
By: Bobajobimus. on 22 Aug 10, 23:43:42
Always a perfect finale

WTF is with the ...
By: superhornet69. on 22 Aug 10, 23:24:20
WTF is with the hair??!! Looks he got some electroloysis of his own!

he has a nice sense ...
By: lolboyboy1. on 21 Aug 10, 13:11:10
he has a nice sense of humor...

lol that way good
By: strongman459. on 20 Aug 10, 12:42:03
lol that way good

isnt heavy water ...
By: pacloro. on 20 Aug 10, 07:27:20
isnt heavy water used to make an atom bomb?

I drink normal ...
By: gundrag000. on 20 Aug 10, 05:04:17
I drink normal water..

these videos are ...
By: AbabyThatWasntAbortd. on 18 Aug 10, 20:53:58
these videos are awesome!

I think Jordan and ...
By: UncleKennybobs. on 15 Aug 10, 23:20:28
I think Jordan and Alex Shitferbrains should do a reality TV show where they replace their H20 with D20 - for science, you understand.

lol at the bit with ...
By: amncert. on 10 Aug 10, 00:35:53
lol at the bit with the wisky.... but you might be dead :D

is that hair real? ...
By: ardotschgoetschgi. on 09 Aug 10, 15:19:18
is that hair real? *wanna touch*

LOL I'm from Norway!
By: AnLa061095. on 30 Jul 10, 19:03:20
LOL I'm from Norway!

You dilute your ...
By: 92blink182. on 27 Jul 10, 18:04:45
You dilute your whiskey with D2O rather than with H2O and you might not get that dizzy, but you might be dead.

heavy water = ...
By: gutterculture. on 27 Jul 10, 14:23:37
heavy water = bourbon whiskey, whiskeywhoiskeu n whisky

@McC1oudv2 Hmmmm ...
By: psmanici4. on 26 Jul 10, 01:26:48
@McC1oudv2 Hmmmm sounds more like inhibited DNA replication leading to multiple organ failure.

I love this guy. He ...
By: JakkHack. on 22 Jul 10, 22:27:29
I love this guy. He has so much information that you can't find anywhere else.

Slow down the ...
By: McC1oudv2. on 15 Jul 10, 15:06:15
Slow down the processes of the human body? Sounds like the fountain of youth, or plausible applications in cryogenics.

@DocWilbourn thanks ...
By: Sunderas. on 10 Jul 10, 17:53:04
@DocWilbourn thanks a lot. As for them selling it, well I wouldn't "put my hands on the fire" for them. :)

@Sunderas. Remember ...
By: DocWilbourn. on 09 Jul 10, 08:10:53
@Sunderas. Remember it is a radioactive source! As long as it is contained it will be safe - the range of the beta particle (actually a relatively low energy electron) that is formed when tritium decays is only 4.7 mm in air so your perspex will be stopping any getting through. Compare the energy of the much more energetic beta particle produced when phosphorus 32 decay which has a range of 8 meters! Look at it this way - if the key ring wasn't safe, they wouldn't sell it!

Heavy Water - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 506 seconds

We make ice from heavy water - also known as deuterium oxide or D2O - to see if it will sink or float. More chemistry at http://www.periodicv ideos.com/

Related: heavy, water, deuterium

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Latest comments made on this video:

@calvingao1987 ...
By: JuanLeTwnz. on 07 Sep 10, 19:59:03
@calvingao1987 Exactly my thoughts. To prove it, you'd just have to use a large amount of water in relation to the ice cubes, so the density change wouldn't be as high. They should stay on the ground, if that theory is right.

great video, I ...
By: mglover2315. on 06 Sep 10, 22:02:57
great video, I really understand what d2o is it is great for anyone trying to teach the periodic table.

OK, what I want to ...
By: cepson. on 26 Aug 10, 03:54:25
OK, what I want to know is how do you make Ice-9? Because I could totally use some of that.

Does H2O ; D2O and ...
By: RSXdaLV. on 10 Aug 10, 19:01:12
Does H2O ; D2O and T2O differ in way of solvent?

@AndyKong51 humm.. ...
By: trident3b. on 06 Aug 10, 23:25:22
@AndyKong51 humm.. in which case they should have coloured the normal ice and left the D2O clear I suppose...

That old guy is ...
By: ChiefDen4. on 06 Aug 10, 06:00:59
That old guy is adorable :D

Neil's a freaking ...
By: gerardz101. on 27 Jul 10, 09:31:57
Neil's a freaking bad-ass when he did the shrug

@verybiggun In ...
By: GlovedFury. on 07 Jul 10, 01:12:54
@verybiggun In theory but watch his other video This concertration of D20 In oceans and rivers ect ect. is very very low, Check his other video out about heavy water! :)

Mmm... will the dye ...
By: AndyKong51. on 03 Jul 10, 13:06:40
Mmm... will the dye increase the density? And the ice eventually floats maybe caused by the large amount of D2O in the liquid water. One last (two) question, will the D20 have different reflective index? How can ppl harvest D20? certifuge? Cheers and good video.

Where do you get ...
By: trustthewater. on 28 Jun 10, 02:52:16
Where do you get all that stuff, Neil? *shrugs* Instant top 10 in people I wish I knew. :D

I liked his ...
By: ShmoofingFabsee. on 21 Jun 10, 20:45:33
I liked his explanation at 7:16 onwards as to why the D2O cubes began to float, but i just thought that as the D2O cubes started melting, there was more D2O present in the liquid water, increasing it's density, and as the D2O cubes "just about" managed to sink, would only need a small change in the density of the water to start floating?

If you observe D2O ...
By: endimion17. on 20 Jun 10, 22:01:46
If you observe D2O cubes, you can see that they contain air bubbles. Degassing didn't help at all, because the freezing was done with exposure to air, which simply again redissolved back. The bubbles usually tend to clump in the center of the cubes in the freezing process, and the outer shell of the cube is transparent, air-free and therefore heavier. When that clear layer of D2O melted, the remaining half-melted cube had an overall density less than water. And it floated. That's my hypothesis.

As the D2O ice ...
By: indigestive. on 20 Jun 10, 21:18:14
As the D2O ice melted it made the surrounding water more dense, making the D2O ice float up gradually.

This indicates that ...
By: verybiggun. on 19 Jun 10, 14:57:25
This indicates that D2O should be at far higher concentrations at the bottom of the oceans and deepest of rivers...yes?

@aldld It looses ...
By: idiotkrati. on 18 Jun 10, 06:55:08
@aldld It looses 10% when it is frozen, but the liquid does not, so it is the same result as water and ice. It will float.

Why did you colour ...
By: Cellulosenitrat. on 16 Jun 10, 20:02:15
Why did you colour the deuterium oxide and not the H2O. You know the behaviour of H2O, so you could colour it. In this adjustment the colour might not trigger the behaviours. But it doesnt really matter... ...I was just thinking PS.:I love your videos. They're the only reason to studdy. Germany

Want to see a video ...
By: caegr. on 16 Jun 10, 19:33:58
Want to see a video only with Neil

Don't forget that ...
By: gongargongar. on 15 Jun 10, 18:04:16
Don't forget that as the h2o and d2o exchanges the deuterium will sink to the bottom of the bottom of the water and thus will start changing the relative density even further! Sweet video, as usual

@superdau I think ...
By: heloizyjhenifer. on 14 Jun 10, 21:06:02
@superdau I think D20 and D2O are super miscible, you can't have separated parts that wouldn't mix very quickly in a liquid phase.

Why the D2O ...
By: calvingao1987. on 14 Jun 10, 03:32:40
Why the D2O eventually floats? Because the liquid water now is denser than before because it contains some D2O, also, the temperature dropped to close to 0, which makes the D2O, H2O mixture even denser. This suttle density change is geater enough to make the difference so that D2O ice-cubic starts to float. Although I agree with the prof that there is some exchange between the D2O ice and the water so that there is some H2O ice formed on the D2O, I don't think this is the main reason. Thank you.

he has a periodic ...
By: JoelHodder. on 13 Jun 10, 21:31:56
he has a periodic table tie!!!!!!

@aldld yes
By: ironnica. on 13 Jun 10, 19:55:10
@aldld yes

genious
By: Killahxxx. on 12 Jun 10, 21:47:12
genious

@aldld no, because ...
By: juggliac. on 11 Jun 10, 23:56:56
@aldld no, because the difference in density between solid and liquid form is the same or at least extremely similar.

She can be a good ...
By: CxC2007. on 11 Jun 10, 23:30:45
She can be a good friend to the guys in the Big Bang theory.

Chemistry of the World Cup Trophy - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 370 seconds

Made of solid gold, it seems the World Cup trophy must be hollow. And its distinctive green stripes are made of an interesting compound called malachite. More chemistry at http://www.periodicv ideos.com/

Related: ytworldcup, world, cup, trophy

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Latest comments made on this video:

cadmim aluminium ...
By: vitorix24. on 01 Sep 10, 22:59:53
cadmim aluminium sulphate is added to fine gold to harden. Source: my father and my granfather was goldsmith.

malachite was also ...
By: dafyd4. on 22 Aug 10, 07:18:34
malachite was also one of the earliest copper ores; simple heating drives off the CO2 and OH and reduces it to black cuprous oxide which is easily reduced to pure Cu metal by O2 or CO, so it was the sort of metallurgy that early people could easily do.

@AmerTheFarhat why ...
By: wesleysidney. on 19 Aug 10, 00:04:11
@AmerTheFarhat why not? it is fun

thanks for the ...
By: wesleysidney. on 19 Aug 10, 00:02:47
thanks for the video, dont worry aboult trools and keep using wikipedia, it is not a devil of fakes and is good for fast information.

if you want to know ...
By: kitkitmeow24. on 07 Aug 10, 05:25:34
if you want to know if its hollow,ask the people who are handling it to knock it and hear if it is hollow!!

Yew. ...
By: MsFIFA13. on 02 Aug 10, 01:01:31
Yew. Yodbwduwdyeldwdjskdirbdkduebsjdjshdmdhcmfndndnfndncnbjjdjsjsjsjjssjjdjdjddjjdjdjdjdjdjdjd gold

The defintive mad ...
By: psmanici4. on 26 Jul 10, 01:13:43
The defintive mad scientist....

@Tekinette wow you ...
By: onceuponadream24. on 18 Jul 10, 23:57:01
@Tekinette wow you need to calm down with all these accusations. It is just an informative video, it never said it was trying to prove something wrong!!!

Cant make anything ...
By: eutectics. on 16 Jul 10, 13:50:14
Cant make anything artistic out of 24ct gold! what a load of rubbish! look at Indian and Far Eastern wedding jewellery. there?s even some great Greek jewellery that has survived 2500 years that is nearly pure gold. Western jewellers do use 18ct gold jewellery as is it an excellent engineering material. I do love these videos but not when they disregard millennium of tradition with a throwaway comment...

@periodicvideos ...
By: StanLDN. on 15 Jul 10, 14:45:06
@periodicvideos well I guess we will have let him off then! Love the channel by the way, makes me proud to be a chemistry graduate of Nottingham Uni! Keep up the good work!

@StanLDN ha ha... ...
By: periodicvideos. on 15 Jul 10, 08:06:43
@StanLDN ha ha... only because he didn't have a book with a photo of the trophy... he does not have a vast collection of football literature!

The Prof using ...
By: StanLDN. on 15 Jul 10, 01:10:15
The Prof using wikipedia?!

Great video. I was ...
By: CelticReject. on 11 Jul 10, 21:50:12
Great video. I was wondering if it was hollow 30 minutes ago when I watched the Spanish captain waving it about! I had to find out. btw BUY gold and Silver. It's going to go up up up soon.

Advice: Cut hair. ...
By: GodReignsInMe. on 11 Jul 10, 09:32:58
Advice: Cut hair. But, interesting trophy. =)

i have 2 thumbs ...
By: juanrms171. on 11 Jul 10, 00:27:11
i have 2 thumbs this up cuz of your i love it

i actually learnt ...
By: REY619MYSTERIO6. on 09 Jul 10, 17:53:23
i actually learnt something damn your awsome !!

Talk about a fight ...
By: kkkRyanComerfordkkk. on 09 Jul 10, 14:45:59
Talk about a fight with a plug socket and losing! That hair is awesome!

GOOOOOOLDDDDDD!!!!!
By: esxp. on 07 Jul 10, 23:41:49
GOOOOOOLDDDDDD!!!!!

@AmerTheFarhat yes, ...
By: Th3G4m3L0v3r. on 07 Jul 10, 00:58:18
@AmerTheFarhat yes, i will do that too when i grow old :)

why does he have to ...
By: AmerTheFarhat. on 02 Jul 10, 11:21:33
why does he have to look like a cliche mad scientist....is it really necessary?

As a chemistry ...
By: 473804kc19. on 02 Jul 10, 00:22:02
As a chemistry student and a huge fan of FIFA, I get the best of both worlds! Thank You so much for these videos!!!

@carlypiglet it's ...
By: lancerglx82. on 01 Jul 10, 12:29:49
@carlypiglet it's the same original trophy from when it was first won in 1974..it just gets a makeover or polish before the next tournament..that makes it extra special to win it knowing that other great teams have held it before =)

@clown86 actually ...
By: lancerglx82. on 01 Jul 10, 12:27:05
@clown86 actually the winning country gets to keep the original trophy till the next world cup tournament..after which they are presented with a replica to keep forever..

is there a new one ...
By: carlypiglet. on 29 Jun 10, 02:57:35
is there a new one made every year?

@clown86 yeah i ...
By: destinationpsp. on 28 Jun 10, 19:11:25
@clown86 yeah i just found that out. they dont take the original one home because in one world cup it was given to brazil and it was robbed from them and they never found it so they just give them replicas.

The Professor talks about the Periodic Table of Videos
Posted by: periodicvideos

Video duration: 838 seconds

Highlights from a web lecture delivered by Professor Martyn Poliakoff, discussing the Periodic Table of Videos. See our main website at http://www.periodicv ideos.com/

Related: periodic, table, videos, martyn, poliakoff

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Latest comments made on this video:

Great work.....very ...
By: unicorn9483. on 07 Sep 10, 16:09:59
Great work.....very informative

Is there not some ...
By: LithiumChicken. on 28 Aug 10, 17:11:57
Is there not some sort of way the Nobel Prize could be shared amongst your team? the way you have made a small project about a subject often considered a bit poky and dangerous into a fun, educational and inspiring project is quite amazing. To an aspiring young (very) amateur chemist such as myself, these videos are a goldmine of information. Thank you most kindly, Nottingham University. And Dr. Poliakoff, your ties are just as noteworthy as your videos. Well done.

@periodicvideos I ...
By: DeanMalenko. on 16 Aug 10, 15:48:36
@periodicvideos I suggest a reverse-darwin-award :)

I absolutely love ...
By: kennyyy921. on 14 Aug 10, 03:12:44
I absolutely love these videos, I have been watching then wildly and cannot wait to take chemistry in my coming semester! The periodic table of elements defines our planet!

thias guy has rreal ...
By: gutterculture. on 27 Jul 10, 14:19:52
thias guy has rreal style,he is a true fashionista

1 Dislike? FAIL
By: DawnOfWarHunter. on 21 Jun 10, 19:36:57
1 Dislike? FAIL

1 Dislike? FAIL
By: DawnOfWarHunter. on 21 Jun 10, 19:36:15
1 Dislike? FAIL

This video made me ...
By: profalwayshigh. on 18 Jun 10, 20:36:06
This video made me cry, he is very inspiring.

brilliant
By: FissionNonStop. on 17 Jun 10, 23:45:15
brilliant

The Professor had a ...
By: BahoUtot. on 16 Jun 10, 16:33:35
The Professor had a Really Interesting Cool Hair. LoL (my tag cloud contribution)

you should call ...
By: enflame117. on 16 Jun 10, 02:21:48
you should call Neil "Silent Neil"

thank you for ...
By: 4jonah. on 13 Jun 10, 05:37:30
thank you for everything!

You folks are doing ...
By: maekern. on 12 Jun 10, 18:10:37
You folks are doing a very good thing.

I usually get bored ...
By: JinxG3. on 12 Jun 10, 00:07:12
I usually get bored watching anything to do with chemistry as it is not my favorite subject. But for some strange reason, i sat through every second of this video admiring the way the professor presents this, and the discovery on his funny side. Remarkable work, keep it up!

Neil is badass! .. ...
By: rhn94. on 11 Jun 10, 19:03:23
Neil is badass! .. i always thought he was from one of those james bond movies where he (unfortunately) portrays the evil guy :P

HAIR! HAIR! ...
By: TheBenEEeee. on 11 Jun 10, 18:48:29
HAIR! HAIR! Excellent work as always!

Your channel is far ...
By: AmongstTheAverage. on 11 Jun 10, 15:32:37
Your channel is far and away my favorite channel on youtube. Your videos are a testament to what media sharing can be, not just entertaining but educational as well!

Hello. I simly love ...
By: IAINMAN96. on 11 Jun 10, 08:40:13
Hello. I simly love your videos. They are perfect!

You guys & gals are ...
By: Scrap5000. on 09 Jun 10, 15:23:15
You guys & gals are one of the greatest things to ever happen to the internet! And to chemistry in general in decades!

@jeebersjumpincryst ...
By: pyropakman. on 09 Jun 10, 14:40:57
@jeebersjumpincryst : Thanks. I figured it was an acid and a reactive metal. If you can find the video, that'd be great. Thanks!

Thanks ...
By: jeebersjumpincryst. on 09 Jun 10, 06:23:33
Thanks periodicvideos!!! Another great clip, and I love the extra personal insight we get into some of the characters - I reckon that (candid personalities) is a big part of the attraction and success of this awesome project. Keep them coming PLEASE! J :-)

@pyropakman- hi ...
By: jeebersjumpincryst. on 09 Jun 10, 06:18:38
@pyropakman- hi pyro. I cant remember if I've seen that one or where. I think its a metal in an acid - possibly zinc in hydrochloric, producing bubbles of hydrogen gas, which, you will be happy to know, can be burned! Anyway, if i find out I'll let ya know, and am sure someone else can help you will too - lots of clever ppl on this channel! J :-)

@mrbenboy77 I say ...
By: 43932. on 08 Jun 10, 22:12:39
@mrbenboy77 I say yes ! I'm already a chenist ;-) but i think it would have be nice for me to watch this videos when i was young, but that didn't exist at this time. Thank you to Pr Poliakov and all his team

I really love ...
By: kosta194. on 08 Jun 10, 17:43:31
I really love watching your videos! They simply are awesome =D

@mrbenboy77 I ...
By: RetroSam. on 06 Jun 10, 20:06:25
@mrbenboy77 I completely agree.

Magnesium - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 397 seconds

We've made a new video about magnesium, the first "useful" metal on the periodic table. More at http://www.periodicv ideos.com/

Related: magnesium

Display Video Comments | Hide Video Comments | Add Comment

Latest comments made on this video:

and we tried to ...
By: KalahariSurf. on 27 Aug 10, 04:00:34
and we tried to convince the teacher it was only a small piece of magnesium ribbon that we burnt:)))

We had a science ...
By: KalahariSurf. on 27 Aug 10, 03:59:44
We had a science experiment where we were meant to burn a piece of magnesium ribbon in a cruclible but it was taking too long to burn so we distracted the teacher and filled up the crucible with magnesium powder and tried to heat that up. After a few mins we got bored waiting for it to burn so we torched it directly with the Bunsen burner and the whole thing flared up in a ball of pure white light and a very dense cloud of smoke. Filling 1/2 the lab with dense smoke

thanks give to us ...
By: brazilniq. on 02 Aug 10, 19:04:45
thanks give to us this know knowledge..

To make magnesium ...
By: TheCaptainLulz. on 29 Jul 10, 11:43:52
To make magnesium nitride you have to blow nitrogen onto the lit magnesium. It wont work if you just light it in a stagnant chamber full of nitrogen.

Magnesium is also ...
By: Afrocanuk. on 19 Jul 10, 14:31:18
Magnesium is also used as a high-quality replacement for cheaper plastic molding.

I've seen the old ...
By: JuanLeTwnz. on 15 Jul 10, 22:45:57
I've seen the old video but I'm not really sure about the updates on this one? Culd you please enlighten me about it? Also, dear uploader, did you actually take part in some of those videos or edit them? There have been so many useful responses over the past months. To me, it'd be interesting to take a look at the person managing this channel.

Mg is also used in ...
By: elena1910. on 09 Jul 10, 20:34:38
Mg is also used in fireworks to produce WHite colorss

how much shit does ...
By: JawDog123. on 27 Jun 10, 12:56:30
how much shit does he have on his desktop eeyyyy?

ever try putting ...
By: 4515jonny. on 21 Jun 10, 03:55:41
ever try putting burning magnesium under water?

This video has been ...
By: djspuddy. on 12 Jun 10, 08:41:14
This video has been very interesting, thanks.

I'm a young catalan ...
By: pepquimic. on 07 Jun 10, 23:20:55
I'm a young catalan chemist and I'm very surprised and very happy to see our periodic table in your video. I'm beginning my PhD in scientific comunication (in University of Girona). We use popular science and recreational chemistry to bring science to secondary students and, in general, to bring the scientific research from university to the general public. Periodicvideos is my favorite web page. Thank's to you I discovered a lot of spectacular experiments that I use. Thank's! You are the best!

I'm surprised you ...
By: 41dhos. on 04 Jun 10, 05:38:40
I'm surprised you didn't mention the amazing corrosive properties of Magnesium. Magnesium is one of the most corrosive metals when put in ocean water and frequently used as a anode. Aluminum is also highly a corrosive metal used in ocean waters as an anode. Though, the amazing thing is, when Magnesium is bonded with Aluminum, it creates Aluminum compound that is not corrosive in the ocean. It is known as a 6000 grade Aluminum and frequently used by Ocean Engineers.

fantastically ...
By: woodesroger. on 02 Jun 10, 21:44:42
fantastically poisonous lol

I need to know that ...
By: Nguli34689. on 30 May 10, 13:36:45
I need to know that if Magnesium metal (powder) and powdered Aluminum when combined with an oxydizer like saltpeter and not as reactive as Potassium chlorate, would there be a stroboscopic effect as the two metals burn. We use "Magnalium" which is an amalgam of the two, but I need to know what's involved in the flashing effect that you see in firework displays.

I love how the ...
By: BruckThatsMe. on 30 May 10, 04:26:14
I love how the professor said that Beryllium was "Fantastically poisonous." Love the videos guys, keep them coming.

The Professoris a ...
By: CelticRaven163. on 30 May 10, 01:40:19
The Professoris a legend! Doing the experiment for 25 years knowing it won't work and playing the fool :)

Awesome, but we we ...
By: sajibaby1. on 29 May 10, 04:46:48
Awesome, but we we never did such in our labs in Trinidad!!!!!!

A very interesting ...
By: mewrox99. on 29 May 10, 03:44:16
A very interesting reaction I did once with magnesium was to react it with NO2. Much more powerful than the CO2 reaction

Nice wig.
By: 2oonhed. on 29 May 10, 03:40:32
Nice wig.

Now, am I correct ...
By: Doogeedoo12. on 28 May 10, 18:10:46
Now, am I correct in my understanding that if you stare at a piece of burning magnesium that it can cause you to go blind? I remember my Chemistry teacher in high school advising the class not to look into the light for an extended period of time. Afterall, isn't magnesium and magnesium alloy used for welding? And one should never look directly at the welding surface without a faceguard.

I didn't see it ...
By: ereg1300. on 28 May 10, 16:41:33
I didn't see it burned in the Chemistry lab, my High School never did that experiment. But one of my fellow student go thrown out of Chemistry class for stealing a strip of Magnesium, lighting it in the Math room and burning a hole in the floor tiles.

Does the professors ...
By: bigbookofnothing. on 28 May 10, 15:22:58
Does the professors screensaver say "Green Chemistry !!!!"?

Good old Milk of ...
By: nokomarie1963. on 28 May 10, 13:57:00
Good old Milk of Magnesia. It doesn't get used as an antacid much these days but it is a commonly used laxative in rest homes. Why a metal in suspension would have been considered good for you I don't know. But think of all the crazy concoctions people took in the past; mercury salts, mustard plasters, extracts made of fermented beetle carapaces and the like. It's a wonder any of them worked.

Omg, poor proffesor ...
By: AdventLt. on 28 May 10, 12:44:39
Omg, poor proffesor, his hands shake pretty bandly :(

very interesting ...
By: homousios. on 28 May 10, 12:29:08
very interesting thanks. when I took chemistry in high school durind the Dark Ages I did not pay attention to this as well as the periodic table now I see the elegance of Nature. Thanks

Steel Droplet Mascots - Periodic Table of Videos
Posted by: periodicvideos

Video duration: 336 seconds

As the mascots for the London Olympics are revealed (as two droplets of steel), The Professor gives his verdict and discusses the properties of steel. More at http://www.periodicv ideos.com/

Related: olympic, mascots, steel, wenlock, mandeville

Display Video Comments | Hide Video Comments | Add Comment

Latest comments made on this video:

Is non stainless ...
By: IAINMAN96. on 11 Jun 10, 08:53:24
Is non stainless steel still used in some domains, Proffesor?

I thought normal ...
By: ajuk1. on 03 Jun 10, 21:46:38
I thought normal steel is still used in construction?

that is a vary ...
By: sitruc44. on 28 May 10, 02:13:13
that is a vary interesting idea

@periodicvideos Can ...
By: Scrap5000. on 27 May 10, 20:44:57
@periodicvideos Can Americans nominate you?

the japanese have ...
By: shwee7. on 27 May 10, 19:59:59
the japanese have been making swords out of steel ages before those in England

I really like the ...
By: crabbygaz. on 26 May 10, 21:51:00
I really like the mascots, but Prof. Martin is an absolute star. His energetic, enthusiasm is infectious. Sir Martyn would be well deserved.

@periodicvideos ...
By: DocileBomb. on 25 May 10, 19:25:23
@periodicvideos Either that, or someone replaces the Olympic Flame with magnesium ribbons.

Fuck, he's right up ...
By: johnmacward. on 24 May 10, 19:46:31
Fuck, he's right up in ma grilll !

I believe the ...
By: vulgarmachine2. on 24 May 10, 18:24:42
I believe the professor helped me up a flight of stairs at Nottingham uni in the chemistry department a few years back, but I may be wrong haha!

hes so funny
By: simba00784. on 23 May 10, 19:28:53
hes so funny

Cast steel is an ...
By: LechuCzechu. on 23 May 10, 09:00:14
Cast steel is an alloy of iron and carbon below 2% of carbon in it. Steel itself is made by mechanical processing of cast steel (rolling, forging etc.)

@crubba I love ...
By: TheCloudhopper. on 23 May 10, 07:03:15
@crubba I love that idea!

Can you please make ...
By: mehrshadvahab. on 23 May 10, 03:53:55
Can you please make a video about D3O and its molecular structure.

@crubba He's ...
By: giantsquidrule. on 22 May 10, 17:30:35
@crubba He's already a CBE, one level below a knighthood.

and what format do ...
By: JaksProductions. on 22 May 10, 16:42:16
and what format do you use for the final output?

Brady do you record ...
By: JaksProductions. on 22 May 10, 16:41:48
Brady do you record in 1080p or 1080i?

@crubba It's ...
By: periodicvideos. on 22 May 10, 13:19:40
@crubba It's Professor Martyn Poliakoff Nominations can be sent to either The Prime Minister c/o 10 Downing St or The Queen c/o Buckingham Palace, London.

@entoris476 Hi, I ...
By: periodicvideos. on 22 May 10, 13:18:17
@entoris476 Hi, I wouldn't say this was our definitive steel video, just something we did for fun when we heard about the mascots being made of steel... I expect we'll do more on steel soon.

@DocileBomb That ...
By: periodicvideos. on 22 May 10, 13:17:04
@DocileBomb That would be a sight in the Olympic Swimming Pool!

They should have ...
By: DocileBomb. on 22 May 10, 12:37:43
They should have been made of caesium, in my opinion. That would make the best opening ceremony ever.

@Danthaman1971 ... ...
By: dajwilkinson. on 22 May 10, 08:06:53
@Danthaman1971 ...and it's good for the economy too!

that Olympic guy ...
By: rabbitsib. on 22 May 10, 01:51:44
that Olympic guy looks like Flubber's sibling

haha he said the ...
By: nickgor12. on 22 May 10, 00:32:05
haha he said the thing about iron is that they just kept banging it and banging it.......haha thats what she said

But stainless steel ...
By: aldld. on 21 May 10, 22:13:12
But stainless steel sucks for swords, something about it being too expensive to harden properly. You need high carbon steel, and you have to oil it a lot, to prevent it from rusting.

hmmmm, professor ...
By: sausage4mash. on 21 May 10, 19:03:45
hmmmm, professor the phallic nature of the mascot will be the main and probably only discussion ,but your innocent outlook on life warms a cynics heart .

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