very much so. A question: would a glass container immediately break when filled with liq He? If not, doing so in very dry air might have shown the color of liq.He. Or would O2 and N2 sublimate too fast on the outer surface?
I was also quite elated to see him so laughing, and all it took was an amazing scientist breathing helium and talking like a cartoon character for a moment.
Firehoax In some of the earliest videos (from around 2008 IIRC) he is completely un-censored. He doesn't say much, but he is very obviously talking. Niel speaking kind of like Waylon Smithers from the Simpsons: everyone knows him as being yellow, but he was once a black character if you look far back enough. Regardless, it's still great to see him "break character".
I'm only a short bit into the video, but I'm already satisfied. Neil is usually super serious and stoic. His barely restrained laugh at Martyn's helium voice was amazing.
the opening 15 seconds of this video may be the height of periodic videos. that framing, the guy in the black shirt staring intently. I love this channel.
I love this video and this channel! I never thought chemistry was very important. Now I'm watching all these videos and reading! Thank you for sparking my love of the Periodic Table!
Finished the playlist yesterday. Gotta say, the professor is a boss. Also, totally baited on a free Neil at the end. All your channels are great. Thanks for doing them.
2Sugoi4U Hey it's the Technician at 6:30 onwards. I laughed so much when I saw your comment and then checked it out! I am also a beatboxer so this was extra funny hahaha
Neil should enter politics with his eloquent statements at the end. If only more politicians could have such a grasp of the language we would be much better off.
I expect its just because a He atom is so small it slithers through stuff relatively easily. its not like it would flow through glass unimpeded, like you could still put helium in a bottle, but it must happen fast enough to spoil the vacuum of a thermos if you use one for He
Liquid helium is a superfluid, it has zero viscosity, so it can flow through pores as small as a nanometer. That also allows it to do other freaky things like stay still if the container is spinning or to climb up and over the walls of its container on its own.
I dont think the ability to diffuse through glass can depend entirely on its superfluid properties, I looked at a few abstracts and lots of work has been done on gaseous helium diffusing through glass at much higher temperatures, -100°C to +500°C. maybe theyll talk more about it in the next video
Helium comes from one source on Earth... a few mines. And they're running out. Once we're out of it, we'll look at these videos and wonder why we filled balloons with it.
I fear He is so light that cannot be held for long in the atmosphere by gravity and slowly creeps into outer space. Don´t mind the balloons: the most of it goes to military uses.
David Buschhorn Helium is not mined but is mixed with natural gas, some countries invest in preocessing plants to extract the helium from the gas like the US, Russia or Quatar and some don't care about it, look at South Pars, Quatar is producing 23% of the world demand from this field Iran 0%.
Can you make a detailed video for Strontium Aluminate? Everything I've found online lacks detailed information/explanation of who discovered/developed it and how exactly it glows etc... can't find anything on Google or Wikipedia other than very generic information.
Helium is awesomely stable in the nuclear world as well. It is SO stable compared to its neighbors, it is one of the few elements you can fission to bellow iron and still make a net positive energy! IE you could split a lithium to get you some helium a net positive of energy. This is basically unlike any light element! You can google "nuclear binding energy curve" to understand this. Anything that increase your binding energy will net you an energy release. Most of the other peaks you see you can't really reach via fission, helium via lithium and sometimes beryllium are the only ones that work (cause fission will net you roughly 2 equal sized parts (one usually a little bit larger) and that just doesn't add up with most of the light stuff)
Definitely William... and if some don't believe that, then, they can encase the tiny wires that go from a thermonuclear-explosive suppository's battery to it's 7th generation explosive charge with conduits filled with liquid helium and stick it! ;-)
Started babbling on about Helium this morning. It's my new favorite element, due to the Helium Remix y'all dropped yesterday. I freaking love these notifications.
1:29 is that spectra including the light from the lamps in the room? Should turn the lights off or go in a dark room so we can see the lines of only the helium.
I anticipate that the only valid reason someone would have cause to dislike this video is how much helium is "wasted" in the video. Many are worried about the Helium shortage. However, there are orders of magnitude more egregious examples of helium waste happening every day. So if someone disliked this video for that reason, it would be quite short sighted.
One thing I would enjoy is when the professor asserts facts wtih "I think" or other similar disclaimers, check out the fact before final production and have a little message appear on the screen as he says that that either confirms or corrects the thing he wasn't sure on. Like, "It's true, we checked it out.", or "Actually, that parts not true." This is Just a thought. Thanks for doing this!!!
Even if it would not cause the chip not working (Aggropop explained why), it would be useless. Its thermal capacity and conductivity are very poor. Extremely cold absolute ethanol (or glycol mixtures) under high circulation are much better. They have enormous capacity and conductivity and wet the surfaces without boiling off and creating even worse bubble zones.
You are saying that it has too poor thermal capacity and conductivity to be effective, yet you think that the silicon losing its semiconductivity due to the low temperature is a possibility? Interesting..
It's not as effective as liquid nitrogen, meaning it will cool something (reduce the temperature/absorb heat) more slowly and you will need more of it to sustain any particular chill point. It will ultimately reach a much lower temperature than liquid nitrogen can though.
It's a different process. The light emitted by a neon light comes from excited electrons dropping back down to lower energy levels. That produces a very characteristic wavelength. I presume the light emitted from a nuclear fusion reaction comes from the very high temperature of the gases involved (incandescence). The color of the light is spread over a swath of different wavelengths (i.e. black-body radiation) and is directly related to the temperature of the gas.
Lol Neil's reaction in the beginning... Priceless... Helium in liquid form is really cool (no pun intended) to see. All this time people were led to believe liquid Nitrogen was the coldest and here helium actually is. Mind.... Blown.... Really love your videos, all. I've watched nearly all of them so far and some more than a couple times.
So if helium forms near radioactive materials then by burying our spent radioactive materials in the ground are we inadvertently making giant helium deposits for future millennia?
Not exactly 'giant'; helium is forming all through Earth's crust and interior, seeping upwards through the rocks and collecting in gas pockets. Compared to the rest of Earth our waste is puny. Dangerous but puny.
Is it possible that the music from the phone only got quieter because helium is on one side of the speaker and possibly air on the other side? So, maybe it is making it harder for the cone on the speaker to vibrate correctly like a diaphragm with two different pressures on each side making the diaphragm more rigid. I ask this because I learned sound travels faster through helium and this goes against that. Is it possible to do the same experiment but use an open speaker instead?
Thank you!! Thank you so much to show us these awesome and so interesting experiments!!! Without a channel like yours we definitely couldn't see those chemical reactions in our life...
Brady, you do a series about the Mendeleyv table. Please explain why we use this periodic table instead of a different. I heard of a different, can't find its name.
I wished the professor would answer this. Why does helium work better for TIG welding and produce more heat input than Argon? And does any of the other inert gasses somehow work better than either of those?
Hey, it's Sanj the Helium guy! Just wanted to say thank you for the opportunity to be in this video. I hope you guys had just as much fun as I did!
+SanjFX cheers Sanj the Helium guy! See you again soon hopefully.
Y'all have a cool job
Thanks for contributing, interesting apparatuses to see in action.
All hail Ser Sanj of House Helium guy
very much so. A question: would a glass container immediately break when filled with liq He? If not, doing so in very dry air might have shown the color of liq.He. Or would O2 and N2 sublimate too fast on the outer surface?
Neil is like xenon... we all thought he wouldn’t react to anything, but turns out he does anyway.
YES ! SCIENCE PUNS !
You win the interwebz. That was a great pun! :-D
Just saying. This isn't a pun 0.0
Ryan Cook How so?
A pun is a play on words. This was a metaphor/simile
I saw Neil laugh. He LAUGHED. Life is complete!
Hr actually talked once.... or so the legends say....
He speaked once... he didn't like it.
I was also quite elated to see him so laughing, and all it took was an amazing scientist breathing helium and talking like a cartoon character for a moment.
Firehoax
In some of the earliest videos (from around 2008 IIRC) he is completely un-censored. He doesn't say much, but he is very obviously talking. Niel speaking kind of like Waylon Smithers from the Simpsons: everyone knows him as being yellow, but he was once a black character if you look far back enough.
Regardless, it's still great to see him "break character".
Didn't know they programmed him to do that!
"Liquid helium is very rare"
"Proceeds to pour liquid helium everywhere"
The helium is recovered in that room so most is not lost.
Curt D no it’s not
I would be surprised if they didn't have some kind of capture system. If for no other reason, due to the chance of leaks.
We're going to laugh at ourselves one day when we're mass producing helium from larger atoms.... turning a pound of garbage into a pound of helium...
radioactive waste is like drain cleaner and alum foil in terms of helium
I'm only a short bit into the video, but I'm already satisfied. Neil is usually super serious and stoic. His barely restrained laugh at Martyn's helium voice was amazing.
I would like to donate to your Patreon but I only get paid... Periodically
Josh Davenport wow lol
YYYYYYYYYYEEEEEEEEEEAAAAAAAAAAAHHHHHHHHHHH!!!!!
Lol
My life is complete. The professor inhaled helium and talked
Nothing is complete now until he inhales sulfur hexafluoride and speaks.
@@ObeyCamp yes
And Neil Laughed!
the opening 15 seconds of this video may be the height of periodic videos. that framing, the guy in the black shirt staring intently. I love this channel.
When you laugh because you inhale helium...
He He He...
lol nice one
Na what a "basic" joke...
^^^Na, what a "basic" joke
Let's not get too "acidic" about this.
I saw what you did there.
I love how electron orbits are represented at 2:49
Neil's like "can't break character... can't break character! ...... Is the camera off yet!?"
I love this video and this channel! I never thought chemistry was very important. Now I'm watching all these videos and reading! Thank you for sparking my love of the Periodic Table!
“Helium is very expensive”
* cue Sanj spraying helium all over the place for 10 minutes
This has hands-down the best intro for a periodic videos upload.
The little professor on the glass sphere is awesome! xD
I am so happy you are making these videos. Watched one with my wife and then realized there is the whole table in videos. So excited lol
Best intro ever
Grimalkin the outro was even better...
This professor is so calm in his presentations. If they want me to believe that can have him tell me.
But real fantastic job!
Helium walks into a bar and the bartender, tells Helium: "Sorry we don't serve noble gases." -Helium doesn't react.
Anton Wilzewski Helium walks into a bar and the bartender says we dont serve your kind here. Helium nobly doesnt react.
The joke gets old, No one reacts.
Helium didn't react, but Neon, Xenon and Krypton argon.
HELLium yes!
he he he
Finished the playlist yesterday. Gotta say, the professor is a boss. Also, totally baited on a free Neil at the end.
All your channels are great. Thanks for doing them.
Neil, at 4:49 - making Leather Pants trendy since 2017.
Is Leather not in style? :C I wear it head-to-toe (I ride a Harley) every day pretty much. Even my video has me in it.
wow that spectroscope is sick!
Agreed! Makes me want one.
Jason Doe Same! In fact I'll buy one. Right now. Like that.
Lol
the first 2-3 seconds sounds like beatboxing
2Sugoi4U Hey it's the Technician at 6:30 onwards. I laughed so much when I saw your comment and then checked it out! I am also a beatboxer so this was extra funny hahaha
what do u mean by the technician at 6:30 onwards? what about him?!
SanjFX whoa Seriously!!!!
your profile picture doesn't look the same, maybe the beard....
SanjFX You even have a youtube channel!?
you work at a lab and also have a youtube channel!!!!!
so at 7:07 why does the bladder blow up like that?!
and DID IT EXPLODE?!
I cannot stop watching these videos.....Professor Poliakoff's voice is designed to be listened to and learned from!!
Are those safety overalls or is Neil just rocking his leather pants?
The dude is a rock star
yes.
It could be both.
Freddie Mercury wannabe
The first 10 seconds literally made my day 10000 times better
the audio at the end is gone!!!! noooooo
I promise it was done on purpose
We've been trolled by a serious science channel. And it's not even April
Periodic Videos is trolling us D:
Neil should enter politics with his eloquent statements at the end. If only more politicians could have such a grasp of the language we would be much better off.
Nah, it's just that Neil's voice is already near-ultrasonic without the helium. That's why he never says anything.
Neil is trying not to ruin the shot with interrupting laughter, instead he becomes the shot. What a fantastic face he pulls.
The beginning was great. He has a great sense of humor. Thanks for the historical and personal story of He.
7:44 nostopwaithangonaminute....helium can go through glass?
yeme I also wanted to hear more about that.
I expect its just because a He atom is so small it slithers through stuff relatively easily. its not like it would flow through glass unimpeded, like you could still put helium in a bottle, but it must happen fast enough to spoil the vacuum of a thermos if you use one for He
yeme It's a bird ! No, it's a plane ! No, it's a SUPERFLUID ! Look it up :) it's litterally very cool
Liquid helium is a superfluid, it has zero viscosity, so it can flow through pores as small as a nanometer. That also allows it to do other freaky things like stay still if the container is spinning or to climb up and over the walls of its container on its own.
I dont think the ability to diffuse through glass can depend entirely on its superfluid properties, I looked at a few abstracts and lots of work has been done on gaseous helium diffusing through glass at much higher temperatures, -100°C to +500°C. maybe theyll talk more about it in the next video
0:09
When a friend in class says something really not funny but you can't laugh out loud and the teacher is asking "what's so funny".
Oh, I hate that! 😤
I used to get in trouble for that, in grade school, but couldn't stop!
Helium comes from one source on Earth... a few mines. And they're running out. Once we're out of it, we'll look at these videos and wonder why we filled balloons with it.
Helium is in the air and can be isolated by the Linde process and fractioned destillation. You don't need to worry we won't run out.
I fear He is so light that cannot be held for long in the atmosphere by gravity and slowly creeps into outer space.
Don´t mind the balloons: the most of it goes to military uses.
No. we can't :-( And we will.
David Buschhorn Helium is not mined but is mixed with natural gas, some countries invest in preocessing plants to extract the helium from the gas like the US, Russia or Quatar and some don't care about it, look at South Pars, Quatar is producing 23% of the world demand from this field Iran 0%.
David Buschhorn
We’re not going to run out of He anytime soon.
Can you make a detailed video for Strontium Aluminate? Everything I've found online lacks detailed information/explanation of who discovered/developed it and how exactly it glows etc... can't find anything on Google or Wikipedia other than very generic information.
Also another video on Copper Doped Zinc Sulfide would be awesome and a comparison behind how different they are and glow etc...
Excelente trabalho...muito bom ver cada elemento da tabela periodica
Thanks PV! Helium is element of the week in my chemistry class. Very timely!
Helium is awesomely stable in the nuclear world as well. It is SO stable compared to its neighbors, it is one of the few elements you can fission to bellow iron and still make a net positive energy! IE you could split a lithium to get you some helium a net positive of energy. This is basically unlike any light element! You can google "nuclear binding energy curve" to understand this. Anything that increase your binding energy will net you an energy release. Most of the other peaks you see you can't really reach via fission, helium via lithium and sometimes beryllium are the only ones that work (cause fission will net you roughly 2 equal sized parts (one usually a little bit larger) and that just doesn't add up with most of the light stuff)
William Taylor - wat
Definitely William... and if some don't believe that, then, they can encase the tiny wires that go from a thermonuclear-explosive suppository's battery to it's 7th generation explosive charge with conduits filled with liquid helium and stick it! ;-)
Started babbling on about Helium this morning. It's my new favorite element, due to the Helium Remix y'all dropped yesterday. I freaking love these notifications.
I really wish that they talked about Superfluid Helium-4.
1:29 is that spectra including the light from the lamps in the room? Should turn the lights off or go in a dark room so we can see the lines of only the helium.
Always great videos!
its always a delight to see prof.poliokoff and a greater delight to see the wonderful and exciting features of science and nature around us
The moment I saw Neil laugh, I scrolled down to the comments and was not disappointed.
SAME!! haha!
I anticipate that the only valid reason someone would have cause to dislike this video is how much helium is "wasted" in the video. Many are worried about the Helium shortage. However, there are orders of magnitude more egregious examples of helium waste happening every day. So if someone disliked this video for that reason, it would be quite short sighted.
Just loving the leather trousers, go Neil!
Yeah, wtf?
One thing I would enjoy is when the professor asserts facts wtih "I think" or other similar disclaimers, check out the fact before final production and have a little message appear on the screen as he says that that either confirms or corrects the thing he wasn't sure on. Like, "It's true, we checked it out.", or "Actually, that parts not true." This is
Just a thought. Thanks for doing this!!!
I want that helium star.
I do as well, I wonder where he got it from.
The child-like mind of a brilliant scientist - "we had lots of fun". Inspirational!
Is the antimatter equivalent called SHElium? :-)
shhh, don't let the feminists realize the male propaganda
No it is antihelium. Helium came from the Greek ήλιος (ēlios, pronounced eelyos) meaning sun.
^ Neeeerrrrrd!
Nah, moonlium
Love how he goes from talking with a high voice and suddenly talking about our universe's composition.
I once suggested: new element must be Poliakovium. Now once again! He is great!
What would be its atomic number?
And how do you pronounce "Polka..."
"Polika..."
That name?
Excellent video. I'm glad your redoing the video set. They're getting better.
That's the first time I've ever seem Neil react to anything!
Neil is a noble man.
i'll show my self out.
Neil reacted a thousand times alrready
Neil guffawed in this video: ua-cam.com/video/K_5wK95Nvk8/v-deo.html perhaps you'll do so too while watching it.
Lego, thank you for that video. I don't know how I missed that one. Yes I did guffaw.
i love the professor and his handy handy sidekick, two heroes
Cold fire CONFIRMED!
That intro though. It’s a true pleasure to know that men of such spectacularly enormous intellect can still be so fun and down to Earth.
When liquid nitrogen isn't enough for your overclocking
We could reach 10GHz with this stuff!! :P
Unfortunately, silicon would lose its semiconducting properties at temperatures that low, so the chip simply would not work.
Even if it would not cause the chip not working (Aggropop explained why), it would be useless. Its thermal capacity and conductivity are very poor. Extremely cold absolute ethanol (or glycol mixtures) under high circulation are much better. They have enormous capacity and conductivity and wet the surfaces without boiling off and creating even worse bubble zones.
You are saying that it has too poor thermal capacity and conductivity to be effective, yet you think that the silicon losing its semiconductivity due to the low temperature is a possibility? Interesting..
It's not as effective as liquid nitrogen, meaning it will cool something (reduce the temperature/absorb heat) more slowly and you will need more of it to sustain any particular chill point. It will ultimately reach a much lower temperature than liquid nitrogen can though.
It's ridiculous how much I love these videos. I missed my calling in life.
What was your calling in life?
The mad professor is endeering
This is the best video on Helium I've seen yet!
Niel is laughing omg i can't believe it
Everything in your videos is what i loved about chemistry class.
Who came here just to hear prof. on helium?
I thought I did, but then it turned out I was actually here to watch Neil lose it. :-)
Been a while since I've watched a Periodic Video. Good to see that you're still producing awesome content.
"Wooooooooo!"
*cough*
I mean, "Weeeeeeeeeee!"
Could you the thermis in a vacuum chamber? Removing the air might reduce the fog? Or will it boil more?
If helium can be produced why some people say we're running out of it?
I have this question, that why doesn't helium escape the glass star shown earlier in the video, as you say later that it can escape through glass...
If helium emits a yellow liɡht, can someone explain to me why a purple liɡht is emitted when helium and deuterium are fused?
It's a different process. The light emitted by a neon light comes from excited electrons dropping back down to lower energy levels. That produces a very characteristic wavelength. I presume the light emitted from a nuclear fusion reaction comes from the very high temperature of the gases involved (incandescence). The color of the light is spread over a swath of different wavelengths (i.e. black-body radiation) and is directly related to the temperature of the gas.
Yeah another Helium video! Ah the memories. Can’t wait till all the elements have updated videos! Best channel ever! :D
Instant like in the first 15 seconds! Neil looks like he is going to die laughing...
These video's are great! Thank You all for making them!
if a man breathes in helium, does that make him He-man?
Lol Neil's reaction in the beginning... Priceless... Helium in liquid form is really cool (no pun intended) to see. All this time people were led to believe liquid Nitrogen was the coldest and here helium actually is. Mind.... Blown.... Really love your videos, all. I've watched nearly all of them so far and some more than a couple times.
Excellent video but I'm afraid I've seen leather pants in 2017.. this could end up demonetized
The look on Neil's face when helium-filled Martyn speaks....priceless!
So if helium forms near radioactive materials then by burying our spent radioactive materials in the ground are we inadvertently making giant helium deposits for future millennia?
Johnny Don't We do not have nearly enough fission reactors for making a proper amount
Not exactly 'giant'; helium is forming all through Earth's crust and interior, seeping upwards through the rocks and collecting in gas pockets. Compared to the rest of Earth our waste is puny. Dangerous but puny.
Enjoyable and informative as always. A warm thank you.
35% of 'visible' matter perhaps, but not 35% of our universe. I'm sure you just misspoke.
+Jin there’s always one. ;)
Jin what's funny is I didn't even catch that, I just inferred that he meant out of visible matter. Luckily I think everyone got what he meant though.
Also, it's 25% of visible matter)
2:36
From where does the helium picks up the two electrons?
Probably from the atom that decayed. When this looses two protons, two electrons will be redundant.
I really wanted to hear Neil's voice.
I love these videos, I feel as if people don't understand Helium's necessity on this planet.
Let's have one with the deep wicked sounding Xenon Voice.
Forget Xenon , Oganesson is the new heavy
Xenon! try sulfur hexa fluoride it makes the voice sound super deep.
Xenon has a narcotic effect so better just use SF6.
I love the Prof. He makes my day!
Praise be to He for creating the universe!
Anglo- Saxon No.
One of the most interesting videos I have seen on this channel.
Thanks.
For better results you should use as a container my ex's heart
Where can i get a handy spectroscope like that?
He He He
Thanks, Prof. You have made me really interested in chemistry. Your videos are very interesting and fun. I am a big fan of them!
Is it possible that the music from the phone only got quieter because helium is on one side of the speaker and possibly air on the other side? So, maybe it is making it harder for the cone on the speaker to vibrate correctly like a diaphragm with two different pressures on each side making the diaphragm more rigid. I ask this because I learned sound travels faster through helium and this goes against that. Is it possible to do the same experiment but use an open speaker instead?
Do you have collection of helium from the ventilation air in those facilities?
Keep doing what you guys do!
Thank you!! Thank you so much to show us these awesome and so interesting experiments!!! Without a channel like yours we definitely couldn't see those chemical reactions in our life...
Great video, I was hoping you would have gone into the very interesting characteristics of the different liquid helium states.
thank you once again PV for making such a calming vid!
Brady, you do a series about the Mendeleyv table. Please explain why we use this periodic table instead of a different. I heard of a different, can't find its name.
I wished the professor would answer this. Why does helium work better for TIG welding and produce more heat input than Argon? And does any of the other inert gasses somehow work better than either of those?
Would it be different or more visible if we used UV or IR imagining?
How can you not love this man. Please support on Patreon.
Neil's look on his face was priceless.