Ben Miller experiments with superfluid helium - Horizon: What is One Degree? - BBC Two

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As part of his quest to understand what one degree of temeprature really is, Ben Miller visits Oxford's Clarendon Laboratory. Here scientists produce temperatures just a few degrees above absolute zero. Ben Miller explores the bizarre effects of these temperatures on helium.
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[@ImGonnaShout2000]

This is the coolest thing I've seen this year so far.

[@jfjgaming6523]

ImGonnaShout2000 is this a pun? Im not sure

[@brycering5989]

it is most likely the coolest thing you could ever actually see ;)

[@dreamperfectnoodles6690]

now i see what you did there

[@degraj418]

Really?

[@8ColousBIT]

ba dum tsss*

[@yoboi267]

Seeing the actual passion and curiosity in that man's eyes reminds me there is still hope for humanity.

[@TheLuminousOne]

bet you're regretting that comment in 2024; wait till you see 2034 you won't believe it!

[@MarshallSmith27]

at 2:43 ben was so intrigued that when the scientist said something to him it startled him

[@finn8601]

2:40

[@dacypher22]

Ha! I didn't notice that before but you are absolutely right. Good eye!

[@blakes8901]

he really was just off in his own little world wasnt he. what an innocent moment to catch on film, you could see his inner child there for a second, completely enthralled in the moment.

[@tonycortese2531]

"We're made of weird stuff like this..." I love that. Superfluid He does some other really strange things, they should have shown more.

[@andreatavaglione6459]

things is, we aren't made of stuff like this, like someone else already said, this is just a weird helium isotope

[@Quintinohthree]

@@andreatavaglione6459 It's the regular helium isotope you find in balloons and what not. The weird helium isotope requires much lower temperatures to become superfluid.

[@boonxai]

@Flat Earth Florida lol

[@danielawesome36]

It's probablly He4

[@luceatlux7087]

everything breaks down to metaphysics when the locus floats to the furthest fringe. edit, for the inevitable contrarians who imagine they know absolutely everything: what i mean is that reality, as we know it, is made through a concert of interacting principles, all perpetually unfolding and interacting with one another. What affects the motion and direction of this concert (at its root) is in the realm of metaphysics.

[@TheChrisLeone]

I remember watching this as a teenager. This type of thing got me interested in science as a young kid, hopefully one day I can afford to get back to school and get a degree so I can follow my real dreams

[@ChrisOrganic]

you don't need to do that now. I went to a shit school where I wanted to learn but couldn't.. so during lockdown I spent my time learning all the stuff I wish I'd learned then... watched science vids non stop or listened to podcasts (highly recommend BBC sounds) when I had to do other things.

[@blasttrash]

@@ChrisOrganic and did you get a job in university or research org where you could do more experiments and discover unknown things?

[@spacesheep6547]

@@ChrisOrganic you were just watching youtube videos, don't make it all sound so amazing. You still need to go to some university-like place to actually do real scince and research

[@generalginger7804]

@@spacesheep6547 😂😂

[@LakesReptiles]

hope youre following your dreams man

[@aartadventure]

Ben: Concludes with profoundly philosophical statement. Scientist replies: It's also cold - like really cold! 🤣

[@ltlklr31]

colder than my ex's heart?

[@LokeshAhlawat-nn1bv]

Rajat Shrestha hahahaha

[@Interestingworld4567]

Lol

[@user-su6ts9wm1h]

●

[@jamsace1001]

Nah

[@shanmugamv8815]

No

[@Max-cs1dn]

“Which one is the bucket?” “This one here (pointing the second cable).” “Okay… (lifting up the first one).”😂

[@lavabeard5939]

glass... it leaked through some type of quark looking plug. Basically, the plug is porous (glass is not), but the surface tension caused by the helium's viscosity kept it from travelling through the pores. Superfluid helium has no viscosity so the individual atoms are able to travel through the pores unhindered.

[@yqisq6966]

Thanks for the explanations. But I was expecting something more like Helium climbing the wall of a glass container...

[@qdaniele97]

Eventually it might even seep through the glass when it finds some invisible microscopic fracture in it

[@kakarot2430]

But why all others liquid doesn't flow from the container to the floor?

[@lavabeard5939]

@@kakarot2430 I answered this in my post. superfluid helium has no viscosity. that means it doesn't stick to itself. therefore, it can travel through the pores one atom at a time. before the helium is cooled, it is not a superfluid. once it cools, it loses its viscosity. other liquids cant flow from the container to the floor because they are not superfluids. they stick to each other and that clogs the holes.

[@lavabeard5939]

@@qdaniele97 I have never worked with superfluid helium so I have no idea how common that is, but it's in a larger glass container, and there's no leak, so it doesn't seem like its likely. plus my entire post was about the video saying "the glass bucket could hold the liquid before but superfluidity breaks down the notion that anything can be solid." however, it's held in a giant glass cauldron so obviously it's being held by a solid barrier despite superfluidity.

[@Fertro]

Odd to think that Ben Miller played an insane man who lived in a shack with a 6ft squirrel named Anthony, and yet has half of a PhD in Solid State Physics.

[@bryanmartinez6600]

Finally a drink refreshing enough

[@standard-carrier-wo-chan]

Imagine, a fluid that flows out of its container. It's literally magic, but we call it science because we understood the cause and effects, and how to reproduce it. Amazing.

[@owlredshift]

Literally? It is absolutely not literal magic. You choose words poorly and that aside, make a terrible point. Magic is made entirely in the minds of people. This is the universe. *This* is literally science, but some may call it magic because they do not understand nature in that sense. Be assured that for any want that the common man could dream of, we definitely do understand this phenomenon that you refer to as Magic. I know this will sound negative, but honestly calling something Magic, or Aliens, or God, or whatever is lazy and unimaginative. Ask any physicist worth their salt why this works and why they think it is cool, and you will see that you are really talking backwards here to anyone that has studied these physics. Of course we only ever have best theories on why anything is or works the way they do, until the next experimentally proven theory comes along that explains nature as best as possible. But, we do not know nothing, we know enough to exploit, employ, or demonstrate these phenomenon well enough to make insanely accurate predictions that are proven correct. Think about this: This video is novel because it displays a purely quantum mechanical phenomenon. Same as magnetism, lasers, all these sorts of crazy things that feel like magic. Because they are not laws we can generally ever see. They are the laws of the particles and subatomic particles only. If we were electrons this would see ordinary and mundane from that perspective. When macroscopic beings like you and I see these demonstrations, it is strange and weird because these are a previously invisible alternate set of rules the universe is following. But we also get to see this due to an increased understanding of this undefeated model that we use it to predict and test with. This means you can count on these models too when it brings you things like GPS, Internet, Computers, Displays, Batteries, Optics, and almost countless parts of your everyday life. If you want to think it's Magic that's up to you, but it is 100% definitely not literally magic. Magic is trickery on display to the unknowing. Science cuts through all that as part of it's axioms.

[@barnacleboi2595]

@@owlredshift Wow, never seen someone get so absolutely triggered because another commenter decided to describe something as "magic". Dont get me wrong, I'm a cynic and dont believe in magic, but its true that technology that is sufficiently advanced enough could be considered basically magic to a layman. Not really something you should pull your hairs out and destroy your keyboard for. Maybe wait 5 minutes after writing a comment before posting it so you can really think about if you really should post shit like that cus you're making yourself look like a very bitter person who isn't fun to be around.

[@geezus7833]

@@owlredshiftget a life

[@terique69]

​Was that really necessary? of course he knows its science but its still amazing, magical, i didnt even read ur whole thing koz its a waste of time ​@@owlredshift

[@piyushf80]

3:42 the joy of realisation

[@matthewbucher8227]

I think if absolute zero was reached something crazy would happen. Like it would mess with the fabric of reality.

[@chemist753]

wonderful .. hope to see the full show . BBC is really awesome . incredible programmes and informative play equally significant part in its shows well done

[@henrikl...1264]

Thank you very much for uploading.

[@KTOWNK1D]

If only Ben Miller finished his PhD in Solid State Physics. I would’ve loved to have reviewed his thesis “Novel quantum effects in low-temperature quasi-zero-dimensional mesoscopic electron systems.”

[@cretium805]

So if it drips through of the bucket, why doesn't it drip through the container holding all the helium?

[@vitopetre]

I'm not sure (I'm not a physicist) but I think it's because the outter container is warmer than 2 Kelvin due to the temperature outside of it... (I imagine it to be similar to this: If you are inside your house in winter the room temperature might be 20° Celsius inside, while it's -10° Celsius outside - the thing protecting you from temperature exchange is your window, which should be neither +20° nor -10° but somewhere inbetween.)

[@thecometdog8574]

Cretium I think its because the glass is completely sealed and is a special type of glass, while the bucket actually has a plug at the bottom, which allows the helium to crawl through the ever-so-tiny spaces between the plug and the glass, while a normal liquid won't go through the space because the attraction of other molecules (aka viscosity) is keeping it from going in. The superfluid has no viscosity, so there is no force to keep the helium inside allowing it to flow down.

[@germas369]

Cretium If any of you listened or did chemistry at school. Helium can be held in a container with very small holes at the bottom of it (preferably a ceramic base). At higher temperatures, helium acts like a normal liquid since it's viscosity is a lot higher than of 2 degrees K above 0. This means that it normally isn't able to drip through the bottom. However at around 2 degrees Kelvin above 0, it's viscosity becomes 0, meaning that it can pass through extremely tiny areas where normally in an average human world, the materials would be considered as impermeable, this is why it's called a superfluid. The reason why the helium doesn't pass through the container with ALL the helium is because the bottom of the second container is completely glass sealed.

[@cretium805]

Germas369 Lol dude I'm fifteen I'm about to get my second year of chemistry at school. Almost all my knowledge comes from the internet ;)

[@germas369]

Cretium Why is it so hard to understand common sense then? Im seventeen i have one more year of chemistry left then I will go to university. Nothing special about me, so why start boasting about your education?

[@drips1030]

Shame it wasn't longer, i chilled right out watching this.

[@laskocool7250]

That was pretty cool and informative. I loved the video.

[@wrcsubey61]

This is the coolest thing I've seen this year so far. 1/19/2020

[@yumm186]

Hehe

[@The_guy_on_the_internet]

My ex just needs a good stare at that thing and watch it go to zero in a nanosecond...

[@aqualynx1443]

thats cold

[@jet5894]

Oh shit, wanna key her car together?

[@cherryboo65b56]

Awesome! I would love to see this in person

[@billbill6094]

The scientist never really answered the question of _why_ absolute zero can't be reached, just reiterated the phenomenon of getting practically "infinitely" close and not reaching it. The answer is because 1. You need something colder and colder to take the heat energy away from the atoms, but eventually the particles themselves will become the coldest there is and will be unable to give energy to the surrounding one's, only recieve it. 2. All particles have a fundamental Quantum spin and vibration that no matter how much the energy of classical mechanics may be drained are absolutely impossible to remove. It's a property inherent to particles on the smlest scale, not something that can be removed by any physical act as any other fundamental property of the particle.

[@gtfomybrbk]

Truly amazing. Sadly though, I know this may sound demented...but I really wanted to see someone just poke it. Just their fingertip, IN THE NAME OF SCIENCE. XD

[@allthenamesaretaken2]

Doubt anything will happen. Leidenfrost effect will prevent the liquid from touching your skin. But if a drop somehow gets through the skin, it would most likely blow a chunk off since the expansion ratio of liquid helium is over 700 times, and since it's super fluid, there wont be an entry hole for the gas to escape from.

[@gtfomybrbk]

Already taught me something new. Thank you! :D

[@mojitocod]

Just the tip!

[@jamessmith9747]

XDDDDD

[@WeRemainFaceless]

Its probably a good job that its a sealed container, humanity or rather male humans have a tendency to try and stick our penises into everything. Only a matter of time before someone sticks their dick in superfluid too!

[@joshisreal90]

Watching this high blew my mind!

[@loganfuruta9427]

Thank you, Bough

[@Gell1welt69]

well that was fantastic. I want more of it

[@imperialman1988]

That was the first time that I saw exactly what y professor of Physics in high school was meaning when he said that supercritical fluids can go through solids as if they weren't there!

[@sal78sal]

It cant. The report mis phrased it. It flows over the top

[@DANGJOS]

@@sal78sal I think it might have been a porous solid

[@SidorovichJr]

why doesn't helium flow out of the bigger container but only just from the small bucket?

[@92tpeter]

as far as i can tell, is because the chamber were sealed

[@antonmarkov2893]

Patty Megahan because of the amorphic structure of glass

[@Sasha0K]

it doesn't flow through, but along the walls up on the inner side and down on the outer side. When it goes up the bigger container - the top portion of it is at higher temperature and helium is no longer superfulid...

[@AnalyticalReckoner]

In the original experiment, a capillary filter was used in the bottom of the bucket. The holes were too small for liquid helium 1 to pass through but the liquid helium 2 superfluid could pass through it. It's used as a test to prove zero viscosity.

[@JSwagy]

92tpeter I think it is because of the temperature difference. It stops being a superfluid the moment it tries too seep out of the larger bucket

[@danioliable]

i had no clue about that, thanks for the info

[@lalitasharma6687]

So when all of them are at same energy level and this is the beauty we get

[@K1NGD0MDOWN]

yes i can see that boff

[@HappyJack1991]

now try to explain that to one of your friends without showing him this video, he'll think you are making up BS. like ''wtf are you saying? if a liquid gets cold enaugh it'll just run trought everything? gtfo out here!''

[@sal78sal]

It does not run "through" anything, thats where they tricked me too. It runs over the top of the container, and drips at the bottom. It's cool, but not as cool as I thought.

[@pblockguardian3646]

awesome broski

[@cademosley4886]

This is (not entirely but in the direction of) what all of Schroedinger's cats look like before you "open the box" (really before the cat waves run into the environment, air, background radiation, etc., long before the box is opened; and it all decoheres into either separate cats, each in their own world, or into just one cat in our world and the rest just disappear, depending on your favored quantum interpretation). That's what's stunning about this. You're seeing the equivalent of the 10^20 Schroedinger cats simultaneously in the box as one cat-wave, some "in there" alive, some dead, some leaking out of the box and flowing down the sides--which is so rare we'd never see it--but you're seeing it here because you're seeing all possibilities in all possible worlds, all together at the same time, all in superposition and spreading out as a wave that we can actually see (at least the results of). They were mind blown, but even then I don't know if they sufficiently communicated just how mind blowing this is.

[@manzoorakhoda4879]

Who the fuck kind of people unlike such videos??

[@GummyBoar]

Religious nutjobs.

[@jcman-lp6lg]

GummyBoar okay that make no absolute sense and just so you don't be me to it so does religion, dumb wannabes and kids who don't understand this dislike it not religious people this has absolutely nothing to do with religious. EDIT

[@GummyBoar]

j.c man I'm guessing English isn't your first language. Religion is the cancer of humanity, manipulating children into believing fairy tales.

[@jcman-lp6lg]

GummyBoar nope English is my first I'm just way to lazy to care about grammar.

[@jcman-lp6lg]

GummyBoar no humans are cancer to earth even us atheist are fucken a holes we are just a bunch of hypocrites going off at each other. If there was a god/ alien race beyond our knowledge they'd be laughing their asses off just looking at us.

[@switchamafuck78]

“It runs right through the solid plug” Me: 👁👄👁

[@Sadilsky]

no it doesnt... bbc is just full of crap :D

[@benp9793]

@@Sadilsky Nope.

[@sal78sal]

BBC making things more dramatic at the expense of truth.

[@ThinkLiveLaugh]

Whoa! Super fluid!!!

[@MihH25]

The helium atoms are so light that even at very low temperatures they vibrate, so the solid don't get organize. The solid helium only exists when applying an external pressure that keeps the atoms close enough one each other. Superfluid helium is a phase, as exists gas phase, liquid phase and solid phase, exists superfluid phase in some substances.. also there's some substances that have a lot of different solid phases... I think that is the easier way to explain (:

[@kfs1o1]

* Patrick voice* touch.

[@StygianEmperor]

now can i hook this device up to a pressurized nozzle and make a cryothrower?

[@drstinky6964]

And sell the blueprints to the military for billions.

[@JuanCee7]

@ZzRvXzZ Well, it's well below zero in Celsius and Fahrenheit, yes. When they're referring to zero in the video, they're not talking in units of Celsius or Fahrenheit anymore since it's too cold. They're using Kelvin, where the unit is more appropriate.

[@JanPBtest]

Well, they purposely don't say what the "plug" has been made of. It's porous but the pores are super-tiny, so no normal liquid could ever go through. They also don't show a far more astonishing effect, the liquid creeping up the sides of the container and escaping through the top. Watch Alfred Leitner video on YT, it's much much better.

[@Nosvenicar]

I love how this guy doesn't even bother putting on gloves as he reaches into his container of liquid nitrogen. So boss!

[@Sixtown13]

SCIENCE!!!

[@WorstRescueEver]

this is so amazing~ why didn't I find out about it earlier?

[@factsfacts6628]

Please I need an urgent answer, why is the viscous-less helium not permeating the out of experimental container like it is doing in the small solid plug.

[@SecretMilkshake]

Does absolute zero apply to quantum physics? Because quantum physics usually does whatever it wants.

[@austindrapen8959]

Shane Gaglione actually it's because of quantum physics you can't reach absolute zero. its a really cool concept that I honestly can't explain, but you should be able to find it on KZbin.

[@discordant8543]

Shane Gaglione Quantum physics is simply the study of how very tiny things behave. As you might imagine, those tiny things behave differently than the things we observe on a macro scale. But no, zero point energy is the lowest possible energy state that a system can be brought to, and that state isn't absolute zero.

[@appa609]

@@austindrapen8959 Well you also can't reach 0 classically.

[@JakubMareda]

Well, that "scientist" didn't really explain why you can't cool something to absolute zero (or why we think you can't). The reason is, that, according to second law of thermodynamics, the heat will always only move from hotter enviroment to the cooler one. You'd need something that has absolute zero heat to cool something else. I wonder however, why didn't the helium escape the big container when it could escape the small one.

[@samuellickiss8463]

I wondered that too. I think it just heated up beyond it's superfluid state.

[@sarugakuza5108]

Because the only cold part was the place they experiment on

[@danielarlington]

That’s awesome!!! The space between the atoms is so vast that the superfluid falls through the solid glass.!

[@slippinslidewayz]

I may be a dummy, but what is the superfluid temperature of the glass vial? Also, if the vial were to reach it's superfluid state, would it become part of the helium? If it could, and you brought the solution back to room temperature, what would happen to the separated molecules of the vial?

[@zolikei]

okay... so what is that thing that can contain helium at that temperature? 'cause obviously something can... but now i started wondering about super ferrofluids, and all the possibilities... :)

[@sal78sal]

Glass

[@MichaelEdlin542]

I swear the guy trying to explain the physics to him doesn't really know how any of it works? He just gives really shoddy explanations!

[@Etherion195]

+Michael Edlin he does that, because the spectators and the oher person have to understand what he is saying

[@Etherion195]

Martijn klop why heisenberg? everything i found about superfluids and superconductors doesn't have anything to do with heisenberg. At least he is mentioned nowhere.

[@gino9094]

I think it is a breaking bad reference/joke

[@1234macro]

Probably not.

[@Muonium1]

It's not a Joke. Heisenberg is relevant because if you actually could get to 0K you could potentially know the exact position of all the atoms in the substance in space since they wouldn't be vibrating at all anymore. If you know the exact position in space of a particle then Heisenberg uncertainty states that you could know nothing at all about its momentum, and if you cannot know anything about its momentum it could conceivably be traveling at the speed of light - an impossibility for particles with nonzero rest mass because it takes an infinite amount of energy to accelerate massive particles to the speed of light and the amount of energy in the universe is finite.

[@danieldemol]

Awesome experiment :)

[@ModernDayRenaissanceMan]

They make quantum tornados with this now

[@zombieregime]

welp, looks like yet another BBC documentary i have to steal online because BBCA feels we americans are too dense for shows like this(granted a lot of us are, but still!)

[@maishafarjana8928]

9 years ago 480p Great👌

[@danburycollins]

Someone needs to edit this into a clip to Alexander Armstrong saying " destroy them" into a desk mic right at the end.

[@lennartzc2]

that one hell of a shot

[@darkstar.357]

I absolutely love how that scientist sounds like a 1930s radio presenter haha

[@ARNAKLDO]

I'm amazed!!

[@AtomicTim]

the bung would have impurities meaning the helium can flow through the gaps, whereas the glass is manufactured to not let that happen

[@windragon50]

Lol, it stopped when he said " Sir Robert Taylor wanted to show me an experiment that opens a door" i'm like Whoa o.0

[@JoTheAnomaly]

I love Ben Miller!!

[@Mohha79]

Well, I think it doesn't actually leaks out through the wall. It's more that there will be a "repulsive" van der Waals interaction between the container and the wall and the liquid helium(or more correctly the wall rather interact with the gas around instead of the liquid), and as it has very low viscosity it will creep up the wall and flow out of the bucket. You can also see how it does this in the clip so I think they explained it wrong themselves.

[@thesimpleeastern]

Man you could see how excited he is by seeing how dilated his pupils are.

[@ssstaniel]

Hah at 2:20, he was so into the helium he jumped when the other guy called him...

[@Zerviscos]

They do. Look closely. There are practically "2 containers" holding the helium. The outer container has fluid at the bottom. That is the very thin film of helium going out from the atom-like holes of the first container and gradually sliding down to the center.

[@hardfi123]

I was expecting ' This equipmnet is absolutly priceless' *breaks*

[@hoyvlad]

That other thing is comprised of two different materials, I guess. Image a glass tube with one end blocked tightly by a corkscrew. The superfluid characteristics of the liquid Helium allows it to flow through even the tiniest spaces between the two materials. Unlike the bigger container, which I assume is a solid glass big ass beaker. That way, the superfluid has no way out but the rim.

[@SynAngel]

Never have i sat so stil

[@halcyonsandiego]

47: Zeno's paradox

[@Belisarius536]

stunning

[@Springfairy92]

So interesting!

[@WastedElephant]

2:40 - Competely hypnotized 😂

[@Abbe235]

Now that is *puts on sunglasses* really cool! 8)

[@nima9327]

At 2:40, he freaked out when the doc called his name!!! :))

[@ShivKamalUpadhaya]

I really wanted to put my hand there

[@stealthtank91]

so why doesn't the helium spill out of the bigger container onto the ground? does the temperature of the little containers glass have anything to do with that?

[@Rashiuable]

It leaks upward, a superfluid can creep up the walls of it's container, since the small one has no lid it is able to escape.

[@rishabhsharma3408]

i read about this in my chemistry book that helium gas can go out of rubber ballons and glass i always wondered that well now i know science is really facinating

[@Joehtosis]

@justkatelyn Seeing as how temperature is the measurement of particle movements, if there are no particles, there is no temperature. Measuring an area with absolute 0 is absolutely impossible for us, however, seeing as how even if you were in a complete void with no particles, not even light, there is still the measuring instrument which contains particles which will bounce off of the main mass and therefore create a temperature.

[@12755JDH]

@aman32757 The equation E=MC^2 is used when converting matter into energy, it does not show how much matter there is based on how much energy it has, Absolute zero is theoretically possible, but it wouldn't be able to be observed, because observations require putting more energy into the system.

[@FinnishEasterPudding]

They store it in normal containers. The liquid only becomes superfluid when it reaches near absolut zero. They store it at the temperature when it becomes liquid, but that is not 1K.

[@HRiZiC]

With the explaination at 0:36 you could also assume, that achilles never reaches the turtle

[@Ordo.Corinthivm]

lmao this guy just pouring out liquid nitrogen without a glove. Total fuckin legend.

[@LittleRavenSonofMatt]

I wonder what would happen if you were to try and hold that stuff aside from your hand freezing off could you feel it moving through you?

Isn't this efect based on the same principle as that by which sucking from an end of a hose with the other end submerged in a tank filled with water, allowing the water to flow out the hose, placing your end of the hose below the surface of the water in the tank, and the water still keeps flowing out from the tank until it reaches the same level or the tank becomes emptied?

[@TimeLordParadox]

Wow, my mind is just blown

[@caretaker8960]

Very interesting.

[@physicswallahbmsharmafreev6262]

Camera man focused more at Ben Miller than Superfluid Helium

[@Teppei9asone]

it leaks out of the bucket because it is not trapped in the bucket. but the whole setup is trapped in the larger container.

[@SidneyCritic]

From the old B&W vid with the ceramic bottomed beaker you could see it crack across the bottom making it leak, so how do we know it's not just the ceramic shrinking at a higher rate and separating from the glass and creating a leak.

[@thomasparisi5333]

Don't know if you're being serious, but one of the main principles of science is repeatability. I assure you, this experiment has been repeated MANY times, and it leaks every time. So your observation is flawed, it could be correct if this was the only time it was ever done, it wasn't. Sorry for disturbing you months after your post, but I hope this actually helps ......

[@Toxication3]

Depends if your dipping your finger into the beaker or pooring it onto your hand

[@clarkcatalan5336]

Mind blowing

[@TheKumarutsav]

Super cold liquid helium isn't flowing through the container. The atoms are actually defying gravity to spill out of the open end. That is why the main container holding the fluid can actually hold it in. Otherwise it'd seep out of it too.

[@jformaldehydem]

@aman32757 ...Assuming that the photons aren't of an energy to be absorbed by the electrons in the molecule (which would then return to ground releasing heat) you can still only collid the photons with the molecule. You can use resonance damping, which is how I think laser cooling actually works but even then you need to have a resonant frequency, no movement = no frequency, this can not work.

[@foxabilo]

@Maszzmic Yup, the fluid has surface tension but no viscosity so it climbs up the inside of the glass vessel and flows over the lip, if the liquid helium did actually pass through solid glass then it would all fall out the bottom of the experiment tube! Another thing they missed with absolute zero is that the universe wont allow it, if you ever did accidentally get that cold the universe steps in and says Oi, No and heats it up a little tiny bit with a virtual pair creation / annihilation event!

[@tbrew222]

incredible