Erbium - Periodic Table of Videos

[mikeymikemikey1]

0:45 it'll be mine lol

[Daruqe]

Conclusion: sharks will destroy the internet.

[WATTHEUHK]

nice goggles professor

[vicke3000]

very slightly pink

[greenanubis]

sharks are chewing my internet

[aei05h1]

@greenanubis They're trying to get laser beams on their heads

[MrCdaddypuff]

3:25-3:26 he use to work with lasers but he took a arrow to the knee.

[MightyGoldenBoy]

Hah, you're like 70 km (43 miles) from where i live! How cool :)

[majorsromo]

Ducking sharks, interfering with my YouTube.

[aureusyarara]

wait, so erbium both absorbs light (when used in those face-screen thingies) and amplifies it (when used in internet cables)?

How can you change the "setting" on erbium? or are those different chemical compounds?

[djteac]

@aureusyarara listen to what professor Poliakoff says, he explains how it works.

[camberrax]

is that the guy from back to the future?

[98JMA]

Like if you just watched this to see the Prof's goggles

[ArtypNk]

At 4:58 I suddenly though : "Hold on, is Professor wearing silly goggles? "

[jbeer82]

what about the Praseodymium glass that is used for welding goggles.

[Account0997]

anyone can tell where I may buy erbium? I'm not into jewelry or chemical compounds so much as the metal I may use for compounding. Is it expensive?

[DrCube]

Did the prof get a haircut!?!?!?

[EVILdemon1123]

I had to click on this video, JUST to see the professor in goggles

[Assi2004]

no, a shark cant bite threw such a cable!

there are heavy iron cables surrounding the core

[ElDiabloGuapo74]

I love the Erb!

[Debbie321lopez]

Erbium = redstone repeater...

[renamorcen]

@Debbie321lopez OMG

[Debbie321lopez]

@renamorcen Yes?

[schneider418]

Sharks! *shakes fist*

[Phant0mads]

Haha, when I saw element 68, "Er", on the periodoc table I joked "oh, that's probably Erectum". apparently my chemistry teacher heard that because she replied "Shouldn't that be Element 69?" xD

[Bjo15]

Maybe i can make a laser lense with this erbium hmmm

[100alexdel]

I think silicon is more essential

[emadrio]

@100alexdel Hmmm listen to a professor or a random nobody on the internet. Difficult choice...

[Prstvlkkrtek]

@emadrio He has a good point though - silicon is very important.

[DevilMaster]

@emadrio Without erbium we would not have broadband long-distance connections, but without silicon, we wouldn't even have computers.

[nerdalert226]

does the ytterby mine have anything to do with yttrium?

[floyd316]

@nerdalert226 yes, the mine lends its name to erbium, terbium, yttrium, and ytterbium. All four elements were discovered there, as I recall

[nerdalert226]

@floyd316 cool,thats what i thought:)



[bbawor]

Really useful, thanks:)

[RePtArKiNg10]

In Fibre Optics you use a light beam which pulses on and off which represents the two binary states (one = 1 and off = 0). Again, if its sent down a copper cable is an electrical signal, which switches on and off. So the data (this video) is segmented into packets (breaking the data down into effectively chunks), then your IP address etc are added (this encapsulates the packet and forms a frame) and then this frame is then converted into a electrical signal or light wave.

[ghostalin]

@RePtArKiNg10 Alright I think I see see. I was just wondering if they encoded it using colored light, like RGB separation 256 colors sort of deal. Pretty damn impressive that this all works with such little disaster.

[Paulginz]

@ghostalin Multi-colour fiber optics exists, and basically allows you to multiply the bitrate by sending signals with different colours simultaneously, however AFAIK the techology isn't being used in practice.

There's no link between the colour of the laser/signal and the way colours are encoded in binary when sending an image/video.

[lintfordpickle]

I like that bit (3:23)

"I used to work with lasers so this is rather nostalgic. Erm .. is it switched on?"

[ghostalin]

How is information encoded in the fiber optic cables? Surely it can't be binary. Is it something along the lines of 255,255,255?

[Ak3r0n]

@ghostalin it is encoded as binary data (255,255,255) would be in 8-bit format (11111111, 11111111, 11111111), remember 2^8=256.

[ghostalin]

@Ak3r0n Encoded in color, I presume? Not pulsing black and white?

[Ak3r0n]

@ghostalin not sure I understand your question. Data is data - just ones and zeroes (a detector receives  a laser pulse =1, or not =0). What the data means or what it can display/do is up to the software that interprets this data. For exemple, you could display an image out of a wav file data (though it would be just a noisy mess)

[un2mensch]

RAVE GOGGLES! Go Professor!

[iorixs]

God  created all the elements with foresight

[TeslaRifle]

The EM field producted by the internet fibers probably interact with the sharks ampullae of Lorenzini, so they probably think it is food. 

[klesstwo]

bad bad sharks.. stop me from getting pr0n!!

[Versudan]

lol those damn sharks... Go back to eating fish and stop messing with my internet!

[wookidoo]

What does the professor say at 5:18? Full spades?

[Jeremy0459]

@wookidoo Full spate. It means full force or power.

[wookidoo]

@Jeremy0459 Thanks!

[kaziqaleph]

Very slightly? Like biggie smalls?

[number0IX]

@periodicvideos where did the Professor get his tie?

[omichron420]

...how did you keep a straight face mr. camera man?

[jlmadill]

"very.. slightly.." you mean like "finest.... cheapest..."

[Etaukan]

Digging the Professor's goggles.

He has a PHD in HORRIBLENESS!!!!

^_^

[elocoetam]

Sharks just mad they cant watch youtube

[MrDimebagdarell]

Thank you Erbium for allowing me to view hair too good for my own eyes.

[scraffs224]

so cute.

[jasonguyperson]

the guy beneath me is nuts...

[originalboondi]

It interferes with the sharks electrical sensory system.

It drives them mad because they need that sense to hunt their prey from a distance.

Like radar which is sensative to jamming.

By chewing through the cable the interference mask is removed.

The fibers transmit light, the photons collapse the terbium wave function to ground state. Like a welders mask.

The shark is only getting his shades off his head as it were.

If you were blindfolded like the shark, What would you do????

[originalboondi]

I have seen the light

I have intensified it and excited it

AND here I re-pete it

I can control the Photon Electron wave function collapse senario on a piece paper

I have multiplied it to the power of INFINITY SQUARED.

I CONTROL THE LIGHT now....

So does everyone......

[DackIsBack]

Those sharks are onto something...

[stuntpea]

That was cool!

[ZenSpider40]

is erbium used in lasers to amplify the output?

[teknotoast]

I want to marry this man's hair. And his brain.

[DJBigz1988]

i just love his excitement about chemistry, and his knowledge is amazing. almost reminds me of feynman how he got excited talking about physics.i really do wish there were more people like him that are that interested in the teaching and study of their fields. i would love him as a teacher. i dont understand half the stuff that they talk about, but its almost that mythbusters style of going out and trying it is what i love about all of these videos.

[pikachuthesquirtle]

but don't they have like very very thick insulation on those fibers so the sharks can't chew through it?

[FmasterJG]

Damn Sharks!!!!!

[onthecuttingedge2005]

been there, i love chem

[KoolKidKarl2k8]

The thumbnail is awesome!

[DannyFox06]

Afros, Goggles, and Lasers. Could science possibly be any more awesome. Thanks Prof!

[mahin300]

erbium is a loser

[SpenserF]

What's the wavelength of that laser?

[iToasterman]

so, this is sorta like carbon in a nuclear reaction, it can stop the whole reaction fast right?

[DevilMaster]

How many mW did that IR laser emit?

[booyamichelle]

I love the way his hair flops when he puts the goggles on ha.

[Nintendoman851]

dude the fro dude is a stud!!! i mean, even without the fro he still is, but what other old people do you know that have an afro?! haha, i didn't mean that offensively though, great videos.

[Nintendoman851]

dude the fro dude is a stud!!!

[xRedster]

''It's VERY...slightly pink''

[Designandrew]

@xRedster That's correct. Very is the adjective, slightly is the description, and pink is the colour. So it's correct. It's another way of saying something is very lightly pink in colour.

[Grundalizer]

WHO WOULD DISLIKE THIS?

[sammysignal]

my boy!

[ZuKahta]

The internet IS a series of tubes!

[rainbowpixx]

i randomly picked this for a class prodject and right now i am sooo happy with my random pick.

[Midnighter169]

wow they make chemistry awsome

[strange6]

@Midnighter169 Believe you me, they may make Chemistry sound awesome but when you get ito the teeth of it, it's very, very boring! Besides, all of these videos they do on here is not chemistry so to speak, but rather applications of chemistry. There is a big difference!

[thatguyuknow1]

Thank you Erbium

[omerta410]

i hate these ads in videos....!

[TheFerruccio]

If energy in the Erbium atoms is dropping as an increased amount of light comes out, how long can the Erbium atoms continue to lose energy like this? Do they need to get replaced?

[Nyphur]

@TheFerruccio Energy is supplied to the amplifiers via a direct current. The professor mentions this at the end of the video when he talks about the current supply to the amplifiers attracting sharks.

[TheFerruccio]

@Nyphur I didn't realize that that's what he was referring to when he said amplifier. So the direct current supplies the Erbium atoms while the erbium atoms themselves contribute to maintaining the light signals?

[Nyphur]

@TheFerruccio Someone explained in erbium extra footage video that the current is used in a small pump laser to excite the erbium atoms. How the emission works is that erbium will absorb several low-energy photons and then emit one higher-energy photon. If I'm understanding this correctly, the pump laser supplies the erbium with enough photons that the weak light signal coming in is enough to stimulate emission of a much higher energy signal with the same pattern as the incoming signal.

[bobsod]

@TheFerruccio Was wondering the same thing

[wienerscnitzel]

livin the dream

[okuma0kuma]

certainly a mix you do not want to confuse with your strawberry flavoured angel delight

quaternion

[smbhax]

Particularly great information and footage in this one!

[leigon9]

the sharks are just mad coz they cant watch periodic videos

[oOstonedOo]

@nimbius Martyn Poliakoff

[physicsbugga]

horray for erbium!!!

[ChiefDen4]

The only reason I clicked on this video was because of the thumbnail :D

[AlphaMaleRyan]

@ChiefDen4 ME TO!

[Gopalissocoollike]

of course you have a history with lasers! YOUR SO COOL!

[sunbrek]

I was wondering why colombia was taking some of venezuela territory in 2:28 >=/ that map is wrong..

[williamley88]

Can i Ask..how does energy conserve while erbium tent to amplified the light twice as much as before?

[Ashitakaandsan]

why did you give up working with lasers?

[Shoyrou]

Is this used in nightvision goggles? I mean, IR light gets changed to green so....

[AgentCROCODILE]

Next time I have trouble wif teh Intarwebs I am blaming it on the sharks.

[DeltaPhi79]

The Professor is one of the reasons I wanna visit England at least once XD

[prototype615h]

the current in sensed by the sharks' ampullae of lorenzini, perhaps it annoys them or maybe the cable current resembles the impulses of a dying sea creature

[achotto]

i dont think i will sleep in chemistry class he was my lec@teacher.

[BlackRomaniac]

Sharks gives me the creeps. they can eat u and your soul.

[RAJASERVER]

same as what gaseous said... THANK GOD FOR ERBIUM...

[chrisofnottingham]

Making a unit which couples two optical fibres with some kind of photo diode, uses an electrical power source and has to work at the bottom of the Atlantic Ocean must be an interesting engineering problem.

[BlackRomaniac]

yeah im from the chemistry sweden whooo

[ConnorXV]

The extra energy comes from the current, run along side the fibres, which helps excite the erbium glass if I heard correctly.

Darn sharks nibbling at my cables.

[activedentalfloss]

We must destroy shark kind. I want my youtube.

[Spiray]

5:22 Sharks: Mice of the sea

[AgentCROCODILE]

Now when my internet connection goes off and I cannot fix it myself within a reasonable amount of time I know what to blame it on.

[andrewb58]

I must be an idiot or something, I never knew there were wires going across the ocean!

[GaseousNobility]

Well, thank God for Erbium!

[eltotoX]

Will the erbium in amplifiers have to be replaced, eventually? Otherwise, where does the extra energy come from?

[imover18gotityube]

"very slightly pink"

ha

[AlexGuitar8]

Best hair/videos on Youtube?

I believe so.

[neoivy]

@AlexGuitar8 almost certainly

[julescicle]

@AlexGuitar8 i need to post a photo of my friend paden his hair bigger and just the same consistency as the professors. EPIC

[imantisocial]

@AlexGuitar8 The Professor's hair is where Jeremy Clarkson gets his inspiration.

[Gumbypotty]

Erbium amplifies light, but used in safety glasses to STOP light? Please explain this paradox.

[MYTHWIZ]

(guess) it must be that you must melt pure erbium, or compounds into glass to amplify, and erbium, or compounds into different materials to absorb light.

[HerrCaZini]

mmmm so what is the external source of energy for the erbium part pf the cable? I mean you can't make light without using something, electricity, chemical reactions (which die out eventually),...

[4Dmetricology]

infared diodes energize the erbium(electric LED)

[culwin]

I was hoping The Professor would sing "Under the Sea".

[o0tinerz0o]

i love this professor haha he is the man and this youtubechanel plus sixty seconds rocks!!!

[chinesepinguin]

the goggles fit over the glasses!!!

[BluBreathProductions]

Actually when you uploaded it to youtube, the video is on the server in somewhere in the U.S. So you are most likely right about the amplification problem, but we are not watching the video from the uk

[HeyaHoney]

I wish he was my chemistry teacher!

[RJLeffmann]

His YouTube-analogy to the optical fiber capacity is great. Everyone on YouTube will understand that :)

[Guitartzero]

Are lanthanides the same as the rare earth metals? (im just starting high school)

[mrschmidt13]

We love you Prof, you're brilliant. Any thoughts on whether you'd be a good cast to voice-act Yoda though?

[JebusGeist]

"As the light comes in from the signal it interacts with the erbium atom and the erbium atom loses its energy and gives off more light."

Does that mean that the erbium in the fiber optic cables is constantly being depleted?

[fossil98]

yes

but extremely slowly

it would take up to 2000 years to deplte a 1 metre long cable

[dartplayer170]

No. The energy comes from a laser pump. The laser pumps the erbium into an elevated energy state. Then when a signal photon strikes the erbium atom, it releases a duplicate photon via spontaneous emission process. And you have amplification.

[SMG10000]

This guy rocks :3  Yay

[stilwellx]

lol at the goggles

[ZerqTM]

Hurray for Erbium! :3

nice video

[cadwaele]

thanks.... I actually learned something today!

[Norfeldt]

its a bite foolish to talk about the most important atoms.. Since it's the mix up that makes us.

I mean you can continue forever saying things like:

Fe is vital because it helps transporting O2 to the blood..

If you have to have a best atom I would go for Hydrogen ;-)

[Norfeldt]

I'm a bite interested in the cables under the sea.. Does anyone have a video or link to a site that explains it good?

[Athrun321]

¡¡¡NOS LEAS ESTO!!!

si lla los as leido copia y pega esto en 5 videos mas o tu madre morirá en 3 dias, hacedlo por fabor mi a mi amigo le paso, yo lo e hecho pa que no me pase, por fabor acedme caso. esto es una maldicioooooon.

[prfctday]

Interesting how a creature 400 million years older than modern man is attracted to and destroys a man made fibre carrying amplified light... maybe the sharks have seen it all before.

[WASP97]

that guy really looks like a mad scientist

[ricardjorg]

Sharks FTW

lol

[sonic48051]

OMG SPACE CATS

[nl1098]

he cut his hair!

nooooooooo!

[Draxis32]

Nice video remaking!

Keep up with the good work Professor!

[Nebbyker]

very interesting, always was curious about how an optical signal got repeated over long distances.

[sixtysymbols]

extra footage from this video in the video response

[bharlan2002]

I love these videos, I always learn a lot.

[DecommMan]

This guy is awesome.

[CitizenErased2007]

I reckon you've taught more people in the past year than anyone could in 10 lifetimes =D

keep the brilliant videos coming :p

[toshindodisciple]

herbium makes everything more intense. ;P

[CitizenErased2007]

erbium -__-

[hirgongyon]

^ obviously not a 4/20 fan

[marcriganoskate]

you don't get it...

[CitizenErased2007]

sorry :P

Heres what i thought :

Americans pronouce Herb as "erb", and i spent alot of time arguing about that :P ( had nothing better to do at the time i guess )

Anyway, seeing something that is actually erb being spoken as "herb" Just brought a bit of memories back :P

I guess theres just a joke im missin xD

[marcriganoskate]

herbium is a play on "herb" -- as in marijuana...not that funny but i guess that's where the humor is :o)

[marcriganoskate]

haha

[mrfamous333]

The last 40 seconds reminds me so much of Dr. Strangelove.

[devilmastah]

why didnt i have a science teacher like you T_T

lessons would have been so much more interesting