Erbium - Periodic Table of Videos
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- Опубликовано: 2 авг 2024
- In our new video about Erbium, The Professor explains why it is perhaps the most important element for websites like RUclips.
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He looked so happy in those goggles. I want everyone to be that happy.
dude same
+Sam Swag in his natural habitat...er, in his element...
Get that man a flying machine!
He always get so jolly whilst making joke out of himself. Such a enjoyable person
@chrisutubeism one of those old fashioned diving suits
Only professor Poliakoff would get nostalgic about lasers
You clearly have not heard of Drake Anthony yet
the professor is so sweet, I feel like I'm his student
Erbium get's excited when you shine a light on it.
Such a cute image.
a brilliant channel. I can listen to the prof all day long and not get bored.
I couldn't connect to youtube or google yesterday, must have been shark attack.
+8b64z I bet it was a WireShark :'D
+8b64z sharknado
+Ben Tice Sharknado 2 to be more specific
3:24 "I used to work with lasers, but I've rather given up now...is it switched on?" :D
+alvinc5 to be fair... its an infra red beam so the only way to know if it was on is to ask.
Lasers are rad.
Infrarad, in this case.
So it's basically a redstone repeater?
Greetings fellow Minecrafter
Close enough
Yo did you see the pandas
@@b4alpha384 not until 3months after they were added..
Jonathan Pesek are you a veteran minecrafter
Erbium, the nerd of the periodic table.
tru dat
very apt.
"OH MY GOSH, GUYS, IT'S LIGHT, SUCH SHINY, MUCH INFORMATION, WOOOOOOW!!!" - Erbium got excited
Should rightly call it Nerdium, then, which quite inexplicably has not been done for any element.
Even these older videos are golden. I can't stop watching these.
;D Luv how the Professor get excited, especially when he is thinking about sharks in full spate!
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.
Sharks are obviously plotting to steal our internet.
Maybe they are after the laser amplifiers!
They’re trying to save us from more cat videos! :-)
I'm watching this video from India now, thanks Erbium! :D
Honestly for 360p that was good video quality
Fact: No one has EVER looked smarter than the professor did in the opening clip!
What's the internet's greatest threat? Sharks.
Governments.
***** Probably safer.
Aha, so now we've finally got a REAL reason to be afraid of sharks.
United States of Embarrassment Yes, been killed in ghastly ways by an apex predator is not a REAL reason. NAILED IT! 👌🏻
Now after 3 years. What were you all talking about!?
YEET
Doctors, you guys are, simply put, just awesome people. I love you, love what you are doing, and am ALWAYS eager to see more, so just because you have one on "that element" already, puhlease feel free to make more. Nothing like seeing a difference in what we know since "then". Just remember that yes it is possible!! Cheers 🍻
That mine has four elements named after it.
Erbium
Yttrium
Ytterbium
Terbium
I was actually on one of the AT&T undersea cable laying ships. The glass fiber cable takes up only a fraction of the space the old copper cable required. To keep sharks from attacking the cable the ship uses a tool to dig a trench , lay the cable and then cover it again until the cable drops off the continental shelf and into deep waters. Laying glass cable is much faster than laying the old copper version and carries much more data at the speed of light for thousands of miles. The erbium amplifiers enable us to boost the signal without converting it back form optical to electrical which would cause a lot of transmission delay
But why is Erbium the only element capable of being excited and boosting incoming signals in this fashion?
Sharks are destroying the internet.
CanIHasThisName Sooooo true.
CanIHasThisName XD
CanIHasThisName Dang! U stole my comment.
CanIHasThisName So it's sharks vs cats then. Game on!
CanIHasThisName better than trolls I guess
this is fascinating. Wheh the professor was explaining that the atoms of ebrium amplify the signal, i thought "how do they get the energy to do that?", then when he said they had to have a little cable running alongside to give power to the amplifier i felt my limited scientfiic knowledge was holding up. what interested me is that i live in vietnam and often our internet goes down or goes slowly and we get informed it's sharks biting the cable that we get our internet from. and now i know why they are doing it
Sharks eating the internetz?
Internet sharks with lasers!
wire shark
they are hungry for knowledge
These people are awesome!
Every Chem teacher in the english speaking world do well to show these videos to their students.
Fantastic!
I'll remember that Erbium keep my eyes safe next time i'll be welding... xD
Nice video remaking!
Keep up with the good work Professor!
Growing we had a tame scrub hare that also seemed unnaturally drawn to electricity, we called him insulator because over the course of 2 years he managed to chew through every electrical cord in the house without once being electrocuted.
I love these videos, I always learn a lot.
The erbium is exposed to another diode laser in the near infrared to excite it. Erbium amplifies near 1500 nm. It's energized one of several ways, with a diode laser at 1500 nm, or 980 nm or 780 nm.
That little green glowing chip is an effect called 'upconversion.' The light is absorbed and kicks the atoms up a ladder. Then the atoms fall all the way down, producing green light.
I cant get enough of this prof. I dont know why he hasent been picked up for a tv netwek science show
I'm amazed how well this channel is still doing.
extra footage from this video in the video response
Yeah
Those sharks are probably getting revenge for the Internet spreading that embarrassing-to-sharks clip of Fonzi jumping the shark in "Happy Days".
The description of the use of Er seems to defy the 1st law of thermodynamics! I'll have to"google" the subject, and find out exactly where that energy comes from.
Particularly great information and footage in this one!
sharks have very sensitive electric field detectors in
the terminal regions of their heads(electroreception),these detectors are used to locate small prey,cus all living things produce electromagnetic fields,they can also be used for navigation
In the thumbnail still for this video it looks so much like he's about to break in to Video Killed the Radio Star
Thom Harrison LOL "shark bites killed the You Tube Star"
Yes, that also confused me at the beginning, since it did sound like the erbium was providing something for nothing. However, the Prof did go on to mention electrical wires running alongside the optical fibre which supply power to the amplifiers which use erbium. (The electrical currents in the wires being what supposedly attracts sharks.)
I looked at this video recording since I had gotten seriously anxious about the economy and had no idea how to cope. Cash does not mean anything at all anymore. Thus I made a decision to do some research and ran into Goldiverse. I am just so grateful, I can change my personal savings from cash to several currencies, to any precious metal at any time I would like. The state can go and take a jump for all I care. Just Bing it Goldiverse.
I love the professor!...and his videos.
Cool Video Professor! An Addition to my knowledge of chemistry
I remember reading that sharks have specialized sensory organs under the skin on their snouts. Apparently critters swimming in the sea generate small electrical currents, and sharks have developed these organs to help them hunt. Perhaps this is why they thought that optical cables might be tasty, or it could be that they are merely annoying.
Always wanted to know how a intensifier tube works in nv.
At 2:42 Thank you Erbium and Periodic Videos for bringing awesome Video to India.
I like that bit (3:23)
"I used to work with lasers so this is rather nostalgic. Erm .. is it switched on?"
so when the erbium atoms drop from their excited state and releases light to amplify the signal whats putting them back into a higher energy level?
PSI Rocker Im wondering the same thing
PSI Rocker I looked it up and the atoms get blasted with a frequency of light to get to a high energy state and once the signal gets to them it triggers the energy from the higher state to be released. The atoms get "charged" at the same time as they are transmitting the signal.
I am not an expert on fiber optics, but I believe the erbium is used in an Er:YAG laser amplifier. The erbium yttrium aluminium garnet crystal is pumped with optical energy from a diode (or arc lamp in older applications) the molecules get to an excited state and are stimulated to jump to a lower orbit by the passing photon, emitting a photon in the same direction with the same wavelength. This is what happens in a laser (Light Amplification by Stimulated Emission of Radiation) except in a laser, the stimulation source is a random emission and the direction is amplified by the laser cavity.
Short answer: the diodes, which are powered by the cable that attracts the sharks...
Thanks Kiki Noro
Very interesting. Thank you.
Wow, this men is amazing. I love those videos :)
That was very interesting. I didn't know very much about erbium chemistry & applications.
You do not realise the potential of this element is huge, I can see massive applications for this element.
But without Erbium, this video wouldn't obviously exist. So, no one can be watching this video without Erbium.
very interesting stuff. great video as always :)
man love the professor :) argh where was this all those years ago :)
u guys r so smart... job well done
I love this Professor!
If you freeze the picture of the professor at 0:05 mark he kinda looks like a minion. And just as loveable.
Would be nice to see a redo of some of the shortest videos, like Holmium.
Love your videos.
Please make an updated erbium video!!! Show Support!!!!!
Sending information through the air has two big issues: 1. Direction (a classic radio transmits radially, resulting in a large area of transmission requiring a lot of power), 2. Interference (having millions of distinct sources of transmission travelling through the air (therefore not insulated or isolated from other transmissions) would interfere with each other. This is one of the reasons why radios, cell phones etc are licensed to specific, licensed, and limited frequencies.
Hurray for Erbium! :3
nice video
@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.
Well, that makes much more sense now, thanks!
I loves this channel!
Good teacher. You'll never forget that.
@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)
I love him, he is always so exited!
Always out the door?
@@DanceySteveYNWA Thanks dictionery
_it's very slightly pink_ xD
Noticed that XD
Brutal comment section. Yeah you did!
I love this Chanel.
cool video thanks a lot for the information!!
Thank you Erbium for protecting my eyes. I've always wondered what the welding lense in my hood is made of, besides glass
Neil Siebenthal Ahh, someone else who’s watching this in 2019!
I remember welding glasses being made of praseodymium. Check, please.
Page 410
erbium laser (Phys) Laser using in YAG (Yttrium-Aluminium-Garnet) glass. It has the advantage of operating between 1.53 and 1.64 um, a range in which there is a high attenuation in water. This feature is of particular importance in laser applications to eye investigations, since a great deal of energy absorption will now occur in the cornea and aqueous humour before reaching the delicate retina.
Only the prof could feel nostalgic about lasers. What a guy! The reason for the shark attacks is due to the electric fields to which sharks are sensitive and use themselves to find otherwise invisible prey. Just thought I'd add that, but I'm sure the prof knows that already.
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.
Yeah, the Erbium meant I can see these great video's all the way in New Zealand, keep em coming
Sharks hunger for knowledge!
The Professor is one of the reasons I wanna visit England at least once XD
Loving your videos
you guys should redo these videos and update them.
Well, the professor mentioned that the light-amplification process required the use of electrically-powered diodes... which makes sense, since it goes against the laws of physics for anything to just amplify anything else without a power source... so I imagine that erbium has quantum features that allow it to interact with visible or near-visible light.
It's possibly related to the fact that all atoms have both a signature emission spectrum *and* absorption spectrum, which are opposites...
i randomly picked this for a class prodject and right now i am sooo happy with my random pick.
i love the idea of the professor looking at a laser with a feeling of nostalgia
Amazing Video keep it up!
When professor said "I used to work with lasers" I was sure for a second that he would follow with "but then I took an arrow in the knee".
Professor, the. goggles are so you - but what would totally make it would be a picture of you wearing those goggles on a nice little scooter! That is said with affection. This was a great clip for me because I learned both about the element erbium - don't know how I missed that along the way - but also the word "spate". Chalk that up to being a Yank! New words are goodness! Thanks for all the great Periodic Table of Video episodes!!
those goggles!!!! epic professor!
The power supply is for pump lasers. You shine a laser of 980nm or 1480nm on the trivalent-erbium-doped glass, and it gives a gain in the 1550nm region.
In other words, the 980nm or 1480nm pump laser brings the erbium atoms to a higher energy state, and then when the 1550nm signal photons come through, they pop the excited erbium down into a lower energy state which creates more 1550nm photons going out than came in.
Also the spread on the 1550nm is 30nm.
It is also used in Erbium:Glass lasers for its "eye safe" wavelength
His RUclips-analogy to the optical fiber capacity is great. Everyone on RUclips will understand that :)
edit: particle or wave ... can pass through a certain material is because the electrons in the material requires a certain amount of energy to be moved to a higher energy state. if a particle A carries 1ev of energy to block this particle you would need an electron of needing 1ev to jump to a higher state. if the particle have 0.5 ev and the electron need 1ev it would pass through. if the particle have 2 ev and the electron need 1 ev it would also pass through while jumping the electron.
Best thumbnail ever.
No, radiation shielding operations on physically blocking the particle radiation of mainly alpha, beta, and gamma rays. The nuclear fission cycle works on neutron radiation, and neutron radiation doesn't happen much outside of reactors or nuclear weapons. So basically, it is good at arresting the sustained nuclear reaction because of neutron absorption, but wont really stop alpha, beta, or gamma radiation more than lead. In reactors, they use boron 10 to poison it in case of an emergency
Very interesting!
Oh, nevermind. The erbium video you posted on your nottinghamscience chanel just answered my question. :-)
New internet hero: the badass professor who got bored of lasers. I like it.
So it's Erbium that has allowed me to become addicted to these videos?
I could be completely wrong but maybe it acts like a compressor does in audio mixing. You have sounds that are loud/soft and you want to boost softer ones but suppress the louder ones. It might act like that in a sense that weaker light gets a boost but stronger light gets suppressed. In a sense you end up with an output that's in a certain range no matter how weak/strong the entering light is. Sounds like a good analogy but probably wrong. :)
@Cooper Gates Why only Erbium? Simplest reason may be because each element has UNIQUE properties, like crystal structure. The crystals formed by Erbium interact with photons in this unique way with the wavelength of infrared light. Consider a FLIR optical system: The optical sensor has a surprising lens - it's a thick, opaque (to our vision) lens, made of Germanium.
Each element really is more "Magic" than anything in common "Sci-Fi" stories.
Just by having more Protons, Neutrons and Electrons, each element becomes something unique and often radically different than those before and after it.
I think that many scientific breakthroughs will come from discovering properties of elements that have yet to tested in new ways and combinations.
Theoretical Physics is so crucial precisely because while discoveries are made during physical operations, many crucial things come from REALIZATION of answers, questions and experiments. I offer this as my humble two cents worth.
Thank you Erbium