Iridium and Osmium Discovery - Periodic Table of Videos

[Socialteacup]

"he's made a mistake here, he's written a twice"

haste to publish before the french i see...

[infintiyward]

iridium and osmium are the densest elements in the world

[altosax1st]

Moral of the story: write your papers before going on vacation.

[qoaa]

Unobtanium 

[tradecycles]

What a great channel. I'm loving it.

[AricWitAnA]

I'm surprised they let him so close to those documents with a pen! Lol one wrong move and... well... bad things happen. Lol

[Camyum]

Walter Russell was a brilliant scientiest too who predicted plutonium, deuterium, and tritium based upon his view of the elements as condensed light acting according to the law of octaves.

[grarosting]

Umm the greek word pf smell is "Mirodia" or "osmi" it has twp names.That is why the element got its name!In greece we name that element Osmio!

[HazMatLabz]

what's strange is that Osmium Tetroxide has been quoted for it to be lethal at concentrations below the smell threshold, wikipedia must be wrong :P

[kowalityjesus]

@HazMatLabz well how can anyone assert that a substance even HAS a smell if they would die before they can smell it. how curious.

[dljones33]

Love the videos Professor! My field is music but I so enjoy science as well.

[nowiecoche]

@dljones33 Yes!

[AtheistKharm]

people use to have such good handwriting back then.

[endimion17]

What I really like about profesor Poliakoff is his boyish fascination with things most people would think are ridiculous. Sadly, even most professors.

I think his students are lucky to have a chance to be able to listen to his lectures.

This video is great, it sorts of gives goosebumps. It's a true homage to a scientist.

[wstmess]

Οσμη (Ozmi) means smell in greek

[SpartanStig117]

Did you get ill from smelling it professor? 

[SuperLaugh20]

why did this only appear now in my sub box!!!??!?! F you YT

[quercus56]

Brilliant, thanks - gave me goose bumps!

[sirkowski]

Osmium was named after the Osmond family.

[uberdample]

@sirkowski Obviously not.

[djfoo000]

OMG. Final unpublished discovery! Makes me wonder what is it...

[casadejoey]

Anyone got some good links explaining the manner in which glow in the dark products work?

[greenpogo]

@casadejoey try nurdradge in a search on here. lots of glowing chemistry videos. good luck

[mattdamico]

yes

[wwebadgerse]

Iridium is used for modern day Flint and steal

[4jonah]

The word is 'osmic'. :)

[imaball]

i thought tungsten had the highest melting point? but osmium was the most dense??

[MassimoC86]

Another great video thanks. I remember doing actual cut&paste when I was at the elementary school with my notebook.

One thing we used to do was also gluing toegether 2 pages eventually full of mistakes to hide them and start over with blank pages.

Also glad to hear that the prof. smelled Osmium Tetroxide and he's here to tell us about it ;)

[1stPal]

Awesome as usual !!

[yusukeshinyama]

I love the way the Prof. was telling to us how it's exciting. It makes us excited too!

[corinnecossett]

I was looking for it

[gailgier]

It will be the most popular video very soon :)

[TheDustninja]

how do we know he did the cut and paste could have been anyone in fact that could have been done with anything in history

[IMakeOrWatchVideos]

i want to know what he discovered!

[820423]

Please, next time youre in a historic archive, do massive interviews about it! Chemistry is fun, but history is always in a league of its own.

[marianosman]

Thanks for the informative video. My last name is Osman, Osmium!!

[dgfia]

a lovely piece of history.... Thanks Prof...

[volound]

osmatic

Having or characterized by a well-developed sense of smell; a keen sense of smell.

..the Greek word 'osme' meaning 'smell'.

[scriptslayer]

with his quantum hair and his leather jacket.. what a pimp

[flimsybop]

RUPERT!! STEWIE'S TEDDY BEAR IN FAMILY GUY!!!!

[CantBeSober]

Just wanted to say thank you! All be it a lot of the information goes way over my head, i still thoroughly enjoy your videos.

As a plumber i would love to know what (on a chemistry level) happens when i put "flux" on copper, before i solder it.

[CantBeSober]

Just wanted to say thank you! All be it a lot of the information goes way over my head, i still thoroughly enjoy your videos.

[Najwalaylah]

I think I'm in love with Rupert.

[bemanos12345]

Tennant, named iridium after Iris (Ιρις), the Greek winged goddess of the rainbow

[bemanos12345]

Osmium (from Greek osme (ὀσμή) meaning "smell") was discovered in 1803 by Smithson Tennant and William Hyde Wollaston in London

[andycapo123]

Great video!! and here is another interesting FACT:

Osmiridium a natural alloy of Os-Ir was very popular in the early 1930's because it was used mainly as the tip of the fountain pen nibs due to the incredible strength and density of the alloy. The tip was just at the end of the nib which was usually made of gold.

[GamersBar]

lol if they continued using this naming scheme I can guess where the names would be by now. dissapearium, hardtofindium, noaplicationium

[endimion17]

@GamersBar Hardly. No one in their right mind would use English, but Latin.

[TheReaverOfDarkness]

@GamersBar noapplicationium sounds like nickel, at least if you don't count combining it into compounds.

[Kyle11493]

@TheReaverOfDarkness actually nickel is a very useful catalyst and is essential to many organic reactions.

[TheReaverOfDarkness]

@Kyle11493 I'm aware of that, but it seems to always be used in small amounts, while I know it is very abundant.

More recently I have discovered that nickel can harden steel, but I don't think it does as well as titanium, palladium, scandium, or vanadium.

So basically it just seems to be a metal with no major purpose to offset its high supply.

[marcomili]

@GamersBar a new element with new, striking and really unknown properties: whathefuckinium, symbol: Wtf

[AIWARAS619]

@GamersBar At least that way they would be truthful.

[mush01]

I like how the Professor just talking about a manuscript can be both informative and entertaining. A sign of a great educator :)

[johnchj]

The Prof is great :-)

[Skindoggiedog]

Yeah, really enjoyed this one :)

[MegaMonkeyExtreme]

OSMIUM!

[BahoUtot]

Very cool video. Thank you

[norxcontacts]

Do they have digital backups of these manuscripts? I would love to read them.

[vcxlll]

u smelled it..? im going to go smell some too!!

[UltraDrago2000]

@teavea10 most likely, it could also be the cream pressure required to make it, also it coils be a slight modification to heat and atom bonds that causes them to be close.

[UltraDrago2000]

Whoa it's like a story book, a man discovers something great and dies with his secret, WE MUST GO ON A CRUSADE!

[itedin]

The reason that Osmium is likely associated with a bad smell is Biblical in origin. The Greek verb transliterated "ozei" is used only once in the New Testament, and it is translated "stinketh" in the King James Bible. It is is referring to the body of Lazarus after being dead four days.

John 11:39 Jesus said, Take ye away the stone. Martha, the sister of him that was dead, saith unto him, Lord, by this time he STINKETH (ozei): for he hath been dead four days.

[Z1BABOUINOS]

@itedin

In this case, the element would be ozoum or ozeium (from the verb ozo /όζω. ozei means "IT smells terrible"). Since it is oSMium, it comes from osmee /οσμή (the word from 'smell'). The route of the two words is the same, but not the meaning. It would be more precisely descriptive if it was named ozeium.

[domdadon018]

@itedin in german "smell" = "stinken"

[peetabix]

Any ideas of whats under the pasted bits of paper? Would it be worth finding out?

[aeatkins]

What a fascinating video, really special! Cheers!

[Boydman118]

Awesome!!! I might get the chance to work with a graduate of Nottingham this upcoming summer! Cheers from Saint Louis!

[davek381]

Every one of your videos, you can see the enthusiasm you and everyone on your team expresses. This enthusiasm for chemistry rubs off and spreads. Your one of the few highlights of my week, even when I'm struggling with the chemistry of soils, and cation exchange. but, i still have an appreciation for chemistry, makes me excited. just wish i understood it better.

[davek381]

"thats why its called cut and paste". that part was very interesting

[NictraSavios]

@davek381 That part was common sense....

[davek381]

@NictraSavios of course it was... after they explain it. geesh. i didnt realize the connection, and judging from others, they didnt realize this either.

[AntiProtonBoy]

Very interesting video, thanks.

[oisiaa]

Wow! This was fascinating! It is amazing how much information sits in archives like this. I bet something like 0.01% of it gets read on a yearly basis.

I hope Google digitizes archives like this!

[quexalcoatl]

poliokoff wuz here 2011

[nzt93]

Oh my, the ending is perfect. This video is awesome, i've watched many of your videos, this is probably the best. :)

[talshiarr]

Chemistry, and a lot of other branches of science in the 18th and 19th century are so filled with little stories like these, scientists working alone or in small groups discovering what we take for granted. It's all the more inspiring when you consider the level of technology and equipment they had to work with.

[wrapupinarug]

I believe osmium's greek root is the same as that of ozone. not 100% though...

[hoboX10]

Did you make a mistake? You said Osmium has the highest melting point of any metal, but Tungsten has a higher melting point.

[jeff77789]

@hoboX10 he said "very high melting point" and "9th highest" i think.

[oisiaa]

@hoboX10 I think Osmium is the most dense element. He probably got confused.

[kikilosabeyno]

Am afraid that the professor is wrong, Osmium is not the element with the highest melting point according to Wolfram Alpha, the highest melting point in a metal is tungsten (3422°C, almost 400°C over osmium).

[shidoink]

i would of loved to be a scientific researcher in those ages. everything was so exciting!

[PBDPBD]

@shidoink it still is. In many ways, it's even more exciting (but yes, in other ways it is less exciting. Now you need to fill out a lot of forms, get permissions, get trained in how to handle things properly, and so on. Back then the regulations were far less stringent)

[mistulac]

why are they wont to scan that works?

[ElmarBischof]

Are there Guided-Tours at the Royal Academy of Sciences in London ?

[ElmarBischof]

A nice & interesting piece of History.

[deefdeefdeef]

I love that Wikipedia has already been updated (with sources cited) to reflect this information. Thanks for paying it forward, whoever you are!

[culwin]

This is like when Geraldo opened Al Capone's vault!

Except there's something inside this vault.

[resistanceizfutile2]

Hehe, cut and paste; old school style.

[kght222]

i love the prof, but this seems to contain yet another example other than natural reasons that poliakoff shakes/shivers constantly. the guy has been exposed to allot of chemicals.

[davidsquall351]

I wonder what Mr. Tennant''s last discovery was?

[camelsat1]

The greek word for smell is "ΟΣΜΗ" (osmi)

[deadlock361]

arn't they supposed to be the most dense of all the natural elements?

[kght222]

@deadlock361 gold and mercury are heavier if that is what you mean, but density is based on the molecule more than the atom. (even titanium is heavier, its the molecule that makes it light).

[sporkafife]

I find the last part of this video fascinating. It will be impossible to know whether we have ever discovered what he discovered just before his death...

[Idtelos]

Wish the Professor would say at least once "Good news everyone!!"

[subliminalvibes]

Osmium.. smell... like a form of osmosis??

I love how the Professor is SO excited!!!

[HADJIDEM]

Osmium comes from the Greek word "osmi" ("οσμή") which means "smell"

[BADtimmay]

fantastic ! Keep the great videos coming. I love it !

[periodicvideos]

@BADtimmay we will!

[sanches2]

this is what i call fascinating

[Draxis32]

Iridium and Osmium are my favourite metal elements!

I hope someday I would be able to buy a relative good amount of them!

Nice video Brady, this one I loved it!

[Ihasmoarface]

very interesting video !

[rackslap]

I THINK THE PROFESSOR SHOULD WAVE HIS HAND AROUND MORE. FOR EFFECT.

[Digeridude]

Brady, I love the videos, but some browsers stutter when Flash initializes and it clips the first second of video. Could you add a slight pause before the professor begins talking?

[evo2029]

Index cards remind me of ghostbusters 1

[Muscleduck]

What a great video!

[TakronRust]

I don't remember where I heard or read it, but is it true that all the Iridium deposits on earth are from impacts and that it doesn't occur naturally on earth?

[Franchifis]

The professor must be one of the few people who have actually smelld OsO4 since now everybody knows how dangerous it is so everybody is carefull not to do it

[douro20]

@Franchifis

Osmium tetroxide, even in small amounts, can cause blindness.

[Z1BABOUINOS]

3:00

"...the english word Iridescent".

That's also Greek actually. Comes from the Greek goddess Iris, after whom iridium was named.

[2muchgametime]

Smile wide you've been caught texting.

[SimeonKristoffersen]

There's an error at 4:20. Osmium does not have the highest melting point of any metal, Tungsten is.

[Khaielaash94]

This is really interesting.m:)

[vevenaneathna]

this is so cool lol.....

almost as much of a bad ass as tycho.

im just gunna write that I feel it should be called iridium coz its colorful...

[teavea10]

Is there a reason why iridium and osmium occur together in nature with platinum?  Is it related to their being the three densest elements?

[bobfl42]

Iridium etymology from the OED "from Latin iris, irid- 'rainbow' (so named because it forms compounds of various colours)"

Perhaps another visit to the archive would be in order to bring to us more historic papers.

Thank you...

[ChRIs23696]

osmium comes from the greek word οσμή (pronounced ozmie) which means smell... its not really a commonly used word tho

[unluckylion]

this was a great video, thank you for making it = )

[periodicvideos]

@unluckylion you're welcome - cheers for watching

[bobfl42]

The OED has this from the etymology of Osmium, "from Greek osmē 'smell' (from the pungent smell of its tetroxide)"

[MrJablong]

>"osmium has the highest melting point of any metal"

ummm, what about tungsten...?

[timmerDanmark]

if i may... this video is yet one of the best form Periodic Table of Videos,

[periodicvideos]

@timmerDanmark why thank you... I know The Prof really enjoyed making it.

[RobertThz]

I'm surprised they allowed professor Poliakoff to touch the documents without cotton gloves on. I thought they would be rather anal about such things, sweat and oils from your skin can be quite damaging to old paper.

[shinobijikininki]

the english word for losing the sense of smell is anosmia, i guess that comes from the greek too :)

[BGenerous]

Gives new meaning to publish or perish.

[QwoPhasaArius]

PROF ROCKIN A LEATHER JACKET. LEGEND

[CorruptReaper]

Yeah, one person mentioned the use of index cards. I laugh at the idea of "cut&paste" in the literal sense. I might be a touch younger than you guys-_-

[balletrocks92]

Every noble scientist has their unique life story and this certainly is one of the many scientists' life story worth remembering. ~!

[kaziklu79]

This is one of your best videos!

[periodicvideos]

@kaziklu79 wow, thanks.

[GiorgioCapocasa]

Loved it :)

[annettesalsman]

I watched this video up till 6:23 thinking "what a nice upbeat video to start my day", then I watched the ending.

[HelloIamBarnsy]

The archive looks like the archive in Angels and Demons.

[prabhatpalpal]

every single one goes to my favs.

[xlrv1]

Those were the days when one could discover an element with tangible properties. What name can be given to a modern element of which a half-dozen atoms, created artifically, last for a fraction of a second inside an accelerator? No wonder they have to name them after famous scientists.

[Nitrozzy7]

Please discover Adamandium. My claws could use some... :P

[blenderpanzi]

What, Smithson Tennant's? Is that what you get when you combine Matt Smith and David Tennant? XD

[TheHDreality]

@blenderpanzi Or if sticking to the same series it's what you get if you mix John Smith and David Tennant.

[TheBellabeth]

I feel very intelligent being subscribed to this channel :P

[XonWechtvt]

ουσία in Greek means essence which is a synonym for smell. It's pronounced /oozia/, ooze-e-ah. The -mium is chemical element naming tradition which is a Latin thing concerned with the definite article of a word. Mystery solved -- somebody alert the professor.

[525047]

I would really like to see Iridium dissolved in marine acid. Probably looks nice.

[hla27b]

The first time I see an index card in use...amazing

[periodicvideos]

@hla27b glad to be of service... proper old school this video!

[trespire]

@hla27b Microsoft Access (an option for MS Office) is largely based on the principals used in index cards; Cross referencing different data in varied combination, unique Key identifiers, restricted data field input.

One could say index cards are the grand daddy of today's inline data bases.

[Craydon]

I'm a big fan of names that make sense

[deadeaded]

You know you're a nerd when you recognize the door to the archives of the Royal Society...

[ksandom40]

That's a real shame at the end there. But I imagine it's incredibly common. I find it interesting to think about if someone later made the same or similar discovery. The latest video from RCSuperPowers ("J-20: Why?") actually has some interesting dialog on that.

[hueckelaromat]

osme (gr.) = odor/smell

Because OsO4 is volatile and smells intensive

[ckim336155]

awesomium

[JonatanGronoset]

@ckim336155 Winium :D

[Treenaks]

Smith and Tennant? That's at least two Doctors ;)

[dueydrew]

So interesting finding out why certain elements are named they way they are.

[bemanos12345]

Another great video!

[periodicvideos]

@bemanos12345 thank you!

[zythepsarian]

interesting

[invinciblemode]

Very nice.

[blicblak]

The intelligent section of Youtube cometh. Great video guys!

[TSavs98]

0th veiwer.... yay :), well you guys are amazing I LOVE YOU!!!!!

[F3n10]

0 views? that cant be right!