Is 'Perpetual Motion' Possible with Superfluids?

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The weird rules of quantum mechanics lead to all sorts of bizarre phenomena on tiny scales- particles teleporting through walls or being in multiple places at once or simultaneously existing and not. Shame all this magical behavior doesn’t happen on scales large enough for us to see. Except that there is a way for us to see large-scale quantum weirdness, and that’s Bose-Einstein Condensates & Superfluids.
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Опубликовано:

14 июн 2024

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Комментарии : 1,3 тыс.

@pbsspacetime Год назад

For the fans who didn't watch all the way to the end: we've been having a bit of trouble with the RU-vid algorithm and we need your help! Since our comment response livestream, we've noticed that YT isn't sharing our videos as much with our subscribers. So we're asking our subscribers to 1. switch their subscriptions from "PERSONAL" to "ALL" (just click on the subscribe button and you'll see it) and 2. Watch new episodes as soon as they can! Selecting "ALL" ensures that YT actually sends you ALL the Space Time videos to your home page and watching early makes it more likely that YT shares the video with the larger Space Time community. Thanks for your continued support!

@philipmurphy2 Год назад

Good luck with the algorithm, PBS Space Time.

@RustyDodd Год назад

always

@pyropulseIXXI Год назад

What.... there is a new sub category? WTF is this trash? I thought I was subbed totally, but I was just on 'personalized.' I switched to 'All.' Or am I super dumb and this has always been the categorical subscription statuses??//////

Год назад

Haha, it was always ALL for you guys

@RagaarAshnod Год назад

Thank you for your continued product 🙏😌

@mathew2214 Год назад

when do we get an episode on how tf dust accumulates on a fan?

@maniacpwnageking Год назад

Probably sticking from grease?

@rossmcleod7983 Год назад

@@maniacpwnagekinghuman grease.

@jezlawrence720 Год назад

MAGIC. This is a science channel, you'll get no answer to that mystery here.

@infinitytoinfinitysquaredb7836 Год назад

My first guess was electrostatic.

@manaman9625 Год назад

Air oils and imperfections

@waltwimer2551 Год назад

I'm a 56 year old electrical/computer engineer and long time "physics enthusiast". As such, I've been aware of the existence of superfluidity for a long time, but this is the first time I've encountered an explanation of the underlying cause of the phenomenon. Excellent! Thank you, Dr. O'Dowd and PBS Space Time!

@JB-pu3oj Год назад

Can't agree more! This was so understandable for a layman like me.

@subliminalvibes Год назад

The black and white Alfred Leitner videos on RU-vid also explain the phenomenon in quantum detail. 👍😎

@takanara7 Год назад

It never occurred to you to look at the Wikipedia article? Might want to try it.

@jimsmith3715 11 месяцев назад

Thank you for an informed response :)

@dylangreen6075 Год назад

Dude... This was a serious lightbulb moment for me. Fermions taking on the qualities of bosons at larger scales. This has given me a much deeper understanding of those phenomena. Thank you!

@PandemoniumMeltDown Год назад

This dude as well. Now I know I wasn't crazy when I said this beer glass was deffective, yet I now think beer might be a superfluid, sometimes.

@fensoxx Год назад

This was a big episode for me as well. I may watch ten in a row and not have a personal breakthrough but when they happen it’s great.

@jeremy4ags Год назад

@@PandemoniumMeltDown if you drink enough beer, your head will be perpetually spinning

@PandemoniumMeltDown Год назад

@@jeremy4ags I drink far from enough.

@pwinsider007 Год назад

If you try to push fermions to same state then it will apply for e that can resist dead star collapsing into black hole then which fundamental force do fermions apply ,is it electromagnetism?then how does star collaps into black hole if fermions apply force that stops the collapsing

@zaddyjacquescormery6613 Год назад

I’ve said it before, and I’m saying it again: PBS Space Time is one of the greatest shows I’ve ever seen. Not just on RU-vid. Y’all are the absolute best.

@mrdgenerate Год назад

I often wonder if channels like this were as popular as the idiotic Mr beast videos... Jame Charles. Kim kardashian... how much better the world would be.

@mrdgenerate Год назад

I would trade all of them for all the PBS channels... spacetime, eons, etc. Numberphile, scishow, sci show space, crash course, moth light media, atheist experience, thinking atheist. "Smarter every day" isn't that good imo even tho the guy is nice enough... "Be Smart" is sorta the same but better than smarter every day.

@protonneutron9046 11 месяцев назад

why? A video about something everyone with a 4th grade education knows about is "great" how?

@zaddyjacquescormery6613 11 месяцев назад

@@protonneutron9046 I am VERY curious about which part of my comment pertains to something “everyone with a 4th grade education knows?”

@protonneutron9046 11 месяцев назад

@@zaddyjacquescormery6613 I wrote the sentence at a grade school reading level. It is self explanatory.

@SB-qm5wg Год назад

When the ultra-non-provocative _PBS Space Time_ is having problems with the algorithm, you know YT is going the wrong way. ⬇

@MaxOakland Год назад

Yeah it’s frustrating

@mgold7503 Год назад

I really like how you showed clips of a superfluid. It really helps me to get the visual and understand.

@DanHarkless_Halloween_YTPs_etc Год назад

Yeah, and getting to watch superfluid freely leaking through the bottom of a solid glass container was pretty amazing!

@EthanTheWerewolf 4 месяца назад

That super fluid broke my brain

@BezBog Год назад

I’m still paying off my bachelor physics degree where I took an entire course on surface physics and superfluidity/superconductivity. This video did better at explaining the phenomena in 15 mins than a full semester of my German big-brain professors

@ThatViralOne Год назад

This channel is awesome! PBS made me regret about my choice to become medico!

@Happymars24 11 месяцев назад

Watching RU-vid > Going to College

@AlexSophiaAguilar 11 месяцев назад

i have always said that current educational systems are on the line of obsolete and intentionally complicated to make money.

@DrakeLarson-js9px 5 месяцев назад

problem is: Which information that you see is legit, and what is WAY OUT there BS...This guy is NOT shy about new trends, but,...tends to avoid reasonably suspicious BS - which is useful for students... Alex Sophia Aguilar has a point that some try to ...well you know, I suggest you watch Edward Teller's video, “Edward Teller - Going to see Einstein give a lecture (31/147)” ... and enjoy it - since he obviously agrees with you!🙂@@AlexSophiaAguilar

@actually5004 4 месяца назад

I bought a pneumatic air file to fix body work on cars, it was expensive and I only need it a few times a year but I still don't envy your expensive and also completely unproductive tool.

@HomeofLawboy Год назад

This channel is such a gem, I'm glad it exists.

@hikingpete Год назад

I've really appreciated the recent explanations of fermions and bosons, and statistical mechanics.

@bochiebochie Год назад

I love watching these video's even though I don't understand 99 percent of it.

@7Alberto7 Год назад

I'm with you brother

@rossmcleod7983 Год назад

@@7Alberto7even less in my case.

@renegibbetnich7883 Год назад

Each time, you understand a little more.

@JAYMOAP Год назад

Great to see you guys taking on condensed matter physics subjects

@GeoffryGifari Год назад

for reportedly having the largest number of physicists working on it, condensed matter seems strangely underrated and underrepresented in popsci

@yeetyboi5481 Год назад

@@GeoffryGifari because it's super goddamn boring compared to literally any other aspect of physics

@GeoffryGifari Год назад

@@yeetyboi5481 no.

@quentinfenoy8412 Год назад

@@yeetyboi5481hell no! This is because you don't know the field, but did you know that electrons, that are elementary particles, so that they cannot be divided into other particles, actually can in condensed matter systems? This is known as fractionalization and it is juste one of all the impressive aspects of condensed matter physics! If you like quantum physics, you'll love condensed matter physics.

@quentinfenoy8412 Год назад

The field is underrepresented in popsci because it is really difficult to explain people that have not a solid background in physics!

@memehi8081 Год назад

I love PBS spacetime

@AlienScientist Год назад

Superfluids are awesome... I remember learning about them 20 years ago as a physics undergrad and becoming fascinated with the concept.

@brenorocha6687 Год назад

I heard many times about the weird behavior of supercold helium. But no one ever tried to explain to me in lay terms, neither did I believe that I would be able to understand the explanation. Until this video. Clear and accessible explanation as usual. Probably also because I've previously watched all the videos you mentioned. Thank you!

@eric_james_music Год назад

thank you so much i've seen a couple other vids about this and didn't understand. the quantum physics backstory with visuals helps a ton. been subbed for this channel for almost 2 years, love it. keep it up!

@beesod6412 Год назад

Best science channel IMO. doesn't hurt that Matt explains things so well, also doesn't hurt that hes easy on the eyes :P

@thulium_3169 Год назад

@leftysheppey Год назад

I wouldn't mind him spending time in my space :)

@mb1287t Год назад

Favorite episode in a while. I wish there was more of it

@martinstent5339 Год назад

12:12 It seems to me that you couldn’t “stir up” a cup of superfluid helium, because it would effortlessly flow around the spoon. I think you have to warm it up above 2.1K, stir it and then cool it down again while it is still rotating to get the “never-ending” vortex.

@fascistpedant758 Год назад

If it still has mass, it still has momentum and would still require a force to accelerate it away from it's position in front of the spoon.

@ExternusArmy Год назад

@@fascistpedant758 yes but that has nothing to do with what he said. Of course a force is required but the energy dissipation in viscosity is 0 meaning it could rotate endlessly once it is accelerated. The only problem is it would flow around the spoon without viscosity to generate the motion in the first place like OP said.

@mb1287t Год назад

@@ExternusArmy perhaps it can be spun with gravity.

@nsacockroach4099 Год назад

You still have the pressure in front of and the under-pressure behind the spoon. So I'd imagine it would still start spinning since this pressure differencial transfers momentum despite the frictionless flow around the spoon.

@EebstertheGreat Год назад

You can still stir a superfluid. Superfluids still interact with other things. Consider that if you carry a cup of superfluid helium around, the helium will move with the cup, so clearly the walls are pushing on the liquid. You can push on the liquid with a spoon instead, and that will cause it to move forward. And then there won't be anything to stop it, so it will just keep going.

@aaronm6675 Год назад

Great video, as usual. Love the emphasis of superfluidity as a macroscopically available quantum effect that's weird and direct

@jajssblue Год назад

Gotta love the random YT algorithm punishments!

@GeoffryGifari Год назад

that resistance two fermions give when forced to be in one state seems eerily similar to a "force", even though it arises purely from statistics and not from an interaction (like the standard model)

@MrOvipare Год назад

Exact, it's a quantum effect that is observed statistically. It's called "exchange interaction" and is responsible for phenomena like ferromagnetism, for example.

@pink_plasticbag Год назад

this is the best explanation of Bose-Einstein Condensate, blows my mind the whole way through. and it feels unreal like a glitch IRL that we're not supposed to see. simply amazing!

@FleshWizard69420 Год назад

"it's not a bug, it's a feature"

@Mohammad__M__ Год назад

15:47 "Oh I'm so tired of this joke" 😂 We appreciate your ever increasing effort to keep making these jokes!

@samwisegamgee4659 Год назад

PBS-NOVA did an excellent 1 hr episode on this subject a few years back. However, they were aimed at a less scientific audience and it was nice to see you visit it on a more technical (Quantum) level and provide a more in-depth explanation of the phenomenon. Good job!

@eltodesukane Год назад

Probably this one: NOVA, Absolute Zero 2-The Race for Absolute Zero (2008-01)

@formlessone8246 Год назад

NOVA used to be great... when I was a kid. But I swear, not only did they slowly dumb things down, but the show started padding it's runtime with repetitive repetition of things they had said twelve times already, as if they were afraid you didn't understand the first two, or that you were necessarily tuning in just now. I think the first time I noticed was back when they had Brian Greene trying to explain string theory, and they never did explain what the string was made of (though that is partially because there is no good answer). Spacetime has always managed to get to the point, if only because they know they can always direct you to an old video or you can replay the one you are on. Which means he can get more technical at least some of the time.

@JohnOverstreet Год назад

Thank you for helping me understand how superfluids and superconductors are connected.

@scottslotterbeck3796 Год назад

Yeah, surprising to me, I'd never make the connection.

@novakonstant Год назад

as always, absolute masterclass. Beautiful insights on the fermion/boson interactions through spin. I feel this episodes gave me the insight to correlate all the information from your last 2 spin/spinors video.

@erdngtn9942 Год назад

The picture of the atom shadow behind the "bose-einstein condensate" was a nice touch to the graphical editor

@JAYMOAP Год назад

Would be interesting to see an episode on the SYK model and its profound implications to black holes

@aashilr Год назад

Liking this so PBS can see, even though I have no idea what SYK model is but has something to do with black holes which I find very fascinating :D

@chipgruver2911 Год назад

So, you want us to cool this episode down to 2 Kelvin, reducing the friction created by the RU-vid algorithm to zero. We should avoid heated comments and allow the flow to swirl forever in this Space Time!

@brothermine2292 Год назад

Well, at the very beginning of the episode, Matt suggested an alternative: the corpse of a dead star. I think Boris Karloff would be an appropriate choice.

@chipgruver2911 Год назад

@@brothermine2292 I think Carl Sagan deserves that honor. Should his ghost decline, then Richard Feynman?

@brothermine2292 Год назад

@@chipgruver2911 : If you want to honor a star scientist, Bose and Einstein come to mind.

@zilvoxidgod Год назад

Fantastic episode. You're so good at weaving elements together to create a whole picture of a concept.

@apollion888 Год назад

Using the show title at the end, instead of a "Space Time" reference to the totality of existence, is tricky, but this episode pulled it off Good work

@alohatraveler Год назад

Excellent content thank you

@realityChemist Год назад

Mainly commenting to help out with the algorithm stuff, but if anyone at Spacetime does happen to read this: at lease one regular viewer (who happens to be a materials scientist) would love more episodes on solid state physics! Personally I find the physics behind wave-crystal interaction (e.g. x-ray / electron diffraction) to be fascinating. It's not too hard to understand at a basic level (e.g. Bragg's law), but the physics there are surprisingly deep when you go digging (e.g. crystal momentum, the Laue relations and the Ewald sphere construction, the connection of this whole topic to Fourier transforms, etc...)

@Juxtaposed1Nmotion Год назад

What is spin glass?

@Moist_yet_Crispy Год назад

Keep the episode references coming Please! It helps to connect this information into trees and fights the neblous nature that this information/discipline can have, helping it to have reference points to attach to for the purposes of remembering and integrating what was learned into a somewhat usable framework where curosity is more easily leveraged. Awesome eqisode and I followed the video references I needed. This is one of my favorite series on the net.

@quantumcat7673 Год назад

This "perpetual motion" in a superfluid is akin to the rotation of a space object. Both phenomena start with some energy kick and the energy is not dissipating (at least not quickly) in the environment.

@kdeuler Год назад

I could swear PVC pipe primer is a superfluid. I've seen that purple stuff flow against gravity and out of the can!

@RealCrafter645 20 дней назад

That can be caused by surface tension

@arnekristian5704 Год назад

FOR THE ALGORITHM!

@wallacyf Год назад

Fantastic episode! It's amazing how you manage to explain such complex things so well!

@nedgey Год назад

This may be the best channel on RU-vid. I like how you get someone who clearly is an expert, with content that is kept purposefully at a level more complicated than most people would understand, including myself. Finally a place where the audience are assumed to be smarter and more resourceful rather than the opposite. Not a fan of ads though, e.g. the Brilliant ad in this one. I already pay for RU-vid premium.

@slidebleed183 Год назад

Sometimes science gives me existential dread

@LavaCreeperPeople Год назад

been watching for 2 years

@DoubleOhSilver Год назад

Been watching for 6

@rellethias Год назад

Started in 2016 I think?

@smartball495 Год назад

Me also and this channel has easily become one of my favorites

@jimc1327 Год назад

Great clarity

@sirtrancealot Год назад

Excellent video Matt! This helped me understand the Boson and Fermion relationships as well as the nature of superfluid. Double topics here!

@donlevoneshabanov4437 Год назад

First comment, I can't believe RU-vid gave me such an early notification for my favorite channel. P.s. I accidentally do what you ask in the end 🙂

@birbdad1842 Год назад

And nobody cares if you're first.

@francaisdeuxbaguetteiii7316 Год назад

@@birbdad1842damn bro, “nobody cares” yet you reply to everyone!😂

@iainmackley Год назад

And now I get why the pauli exclusion principle is a thing! I don't know why the symmetric/antisymmetric difference never clicked before, especially having watched the spin episodes. Thanks Spacetime! Also, question; is Helium-4's boson-like behavior why it is emitted in alpha decay? or is that an unrelated coincidence?

@falnica Год назад

Excellent question. Yes, alpha decay needs to emit a boson, and it just so happens that two protons or two neutrons would be very unstable, so Helium-4 is the lightest stable boson it can produce, now, if you ask why it has to be a boson... that's a story for another time

@iainmackley Год назад

@@falnica Thank you! Good old weak force being weird, I'd guess.

@IamGrimalkin 11 месяцев назад

@@falnica Does it have to be a boson? Beta decay, p-drip and n-drip all emit fermions so I can't imagine why that would be the case. I was under the impression helium was emitted because helium-4 is doubly magic (basically, protons and neutrons have 'shells' in a similar way electrons do in an atom, and magic numbers of them are when the shells are full). Other magic-numbered isotopes can also appear in Nuclear fission. I think the reason helium is more common is that fission requires a larger increase in the nucleus' surface area, which requires a lot of energy because the protons/neutrons are attracted to each other.

@christopherblare6414 Год назад

I've been watching since the very beginning and it warms my soul how many episodes there to reference.

@Becidgreat Год назад

15:17 man the scale is mind BLOWING! I get this stuff way more than I used to. I think your stuff was over my head before and I wasn’t ready for it. I needed a bigger knowledge base to compare and comprehend. I’m very interested in dark energy and noise disturbances in quantum computing but I know nothing about either.

@maddsua Год назад

This is a science lesson I hope people had in schools/universities. Yeah, uni, it's cool that I know how to calculate that, but I'd very much appreciate a bit of visuals and the context

@martiddy Год назад

People in high school can barely understand basic physics, now imagine how confused they would be if you teach them about quantum physics.

@maddsua Год назад

@@martiddy well, I sad nothing about the high school. English is weird and I can barely speak it

@thenovicenovelist Год назад

@@maddsua I think it's because you said "schools/universities" in your original post. In the U.S., we usually think of schools as Elementary, Middle or Junior High, and High Schools. Especially when someone mentions universities separate. There are other types of schools, but they are not as well-known. I'm not sure where you are from or where the other person is from, but I can understand why someone might assume you meant high school.

@thenovicenovelist Год назад

@@maddsua Also, your English is much better than my ability to speak some of the languages I'm practicing.

@memofromessex Год назад

Man, I got most of that. I'm either a genius or Matt is a genius for explaining it so well!

@LuisSierra42 Год назад

We are definitely not geniuses

@philochristos Год назад

That was really interesting and well-explained. I felt like my understanding grew. I hope I don't forget this.

@jakethefakejake69 Год назад

@nicemandan Год назад

I was lucky enough to see "Marilyn" in action at Manchester university, my friend was using it for his PhD. Got to see how they get things down to near absolute zero with a vortex of helium 4. Was fascinating, someone should do a video on it 😊.

@arga400 Год назад

I want an episode on if "Absolute Zero" is theoretically possible. Absolute Zero means no particle has any energy thus they are not moving at all, that would mean we know both the speed and location of an electron, since the speed is 0 and the location is obvious as is not moving.

@MrWayneDX Год назад

It’s not. We would need an infinite amount of energy to do so which would introduce heat back into the system. I’m almost 100% sure we had him talk about it at some point.

@Mp57navy Год назад

It's not. At least not in this universe. And you answered your question yourself as to why.

@siddharthverma1249 Год назад

Doesn't that relate to the atomic/molecular motion a.k.a heat and ignores the energy inside individual atoms/molecules perhaps except for spin? Genuinely asking

@oscaracuellar04 Год назад

Short answer, No, for a more awesome and detailed explanation Matt went over it in a previous episode ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-OvgZqGxF3eo.html

@d4slaimless Год назад

From thermodynamic point of view reaching zero is impossible because to remove heat you need to transfer it from hotter body to colder one, but you can't get a body with temperature lower then 0. And if cooling agent has a temperature of zero (but you just want to reach it, so where would you get one), then the body being cooled would approach the temperature of the cooling agent asymptotically - means would never reach zero. Also particles in a crystal lattice at 0 K would still have minimum vibrational motion, so I'm not sure you will be able to know both speed and location.

@CosmicAliveness Год назад

Absolutely amazing have you been saving this ?

@benoitferland Год назад

Another brilliantly explained episode sowing so many concepts. Now friction seems so obvious! Thanks PBS spacetime ❤

@shamimhussain396 Год назад

So, the particles don't interact because that would require exchange of energy and one of them would need to move to a lower energy state. But at this point, there IS no lower energy state! 😅 It all makes perfect sense now. Physics books are like - they occupy same energy state, cannot interact bla bla, but none of them bothered to explain why they cannot interact. 🙃

@falnica Год назад

The joy of finally understanding

@ThePowerLover Год назад

@@falnica Almost.

@samuelphillippi Год назад

I have set every channel I'm subscribed to to not notify me when videos are updated specifically because I preferred the email notification system RU-vid used to use. How I use RU-vid now-a-days is when I am ready to watch videos, I sit down and load my subscription page, NOT the home page.

@SashaRomeroMusic Год назад

Yeah i didn’t see this until today, while I normally see episodes at the top of my feed the day they come out

@yoshimeier3060 Год назад

Too bad that teachers in Florida cant show this in schools with the video talking so openly about drag.

@oliverh.9814 Год назад

This is just a phantastic channel. First time I see such a good explanation of superfluidity. Well done Dr. O'Dowd and PBS Space Time

@n0e0 Год назад

Awesome explanation of spin! Finally.

@franciscomolina8970 Год назад

I’m hooked and I always watch the whole thing all the way through first time I see it

@PeterGaunt Год назад

Thanks for this! This was a favourite topic amongst the physics pupils in my school when I was 17-18 in the late 1960s. A number of lunch times were spent trying to work out why it wouldn't go on forever. When came to no conclusion as I recall.

@CHUCKLZLORD Год назад

This is a fantastic explanation. Thank you!

@slug.. Год назад

These are some of my favorite videos on RU-vid

@zacharywong483 Год назад

Fantastic video, as always!

@jonwesick2844 Год назад

Great discussion!

@TestECull Год назад

17:24 that's what subscribing does. I don't need my notifications blowing up because every channel puts up a video. And in fact, seeing this video in my sub panel is how I got here in the first place.

@joansparky4439 Год назад

interesting as always, nicely done

@parkerwalden6614 Год назад

Hope your channel continues to grow!

@joshshehab5870 Год назад

Always love how you end on "...of space time." This one was great! (The science was fascinating as well, as always!)

@jimsykes6843 Год назад

Props for self-referencing Space Time (the show) where you always reference Space Time (the, well, everything) in your last sentence.

@alexpearson7459 Год назад

The new graphics look really good! Love the PBS Spacetime team ❤

@LunaJLane Год назад

From what I've heard, mixing live streams with recorded content on a channel kills the youtube algorithm. One solution I've heard of is to just hide livestreams or move the livestreams to another channel.

@Datamining101 Год назад

One of the best ones yet.

@samuelgibson780 3 месяца назад

This channel is so good. Please never stop making good physics content!

@luispalma6917 Год назад

I'm not a subscriber but YT recommended your video 23 min from publishing (I'm in Portugal, Hello across the pond). You got my view and a like for good measure. The algorithm knows I don't loose 1 episode

@jasonsoto5273 Год назад

Thanks for always enlightening us on the fascinating nature... of space time!

@SlurpieDoo Год назад

man i love this show. thanks guys ♡

@myBestWishes677 11 месяцев назад

Thanks! Great presentation

@pendagar449 Год назад

This was a really really good eppisode! I felt that everything was explained perfectly for me to understand and that the goal of this video was to educate me, not get clicks

@MysticHeather 7 месяцев назад

Its been a hot minute since I’ve watched space time, I Just wanna thank you for reminding me of that feeling of hope and possibility, the one you get in science class when you know you could learn any number of cool new things… when there weren’t big looming awful problems in your life and you could easily immerse yourself in learning and expansion. My fathers very sick and is going on hospice. He’s been battling a rare cancer for 2.5 years now. I’d completely forgotten this feeling. Thank you again for reminding me of what life and living feels like at a time in my life when I’d completely forgotten

@jo_crespo11235 Год назад

Excellent video, keep the hard work,.

@Stealth86651 Год назад

Thank you so much for the videos, effort and series in general, really appreciate them. I've been having subscriptions not showing up at all with other channels too. It's just youtube doing what they can to promote certain channels over others for whatever reasoning I'd imagine, otherwise they'd be doing something about it.

@paul454 Год назад

This is, by far, the best explanation of superfluidity I've seen. Thank you!

@haydentravis3348 Год назад

Please keep up the good work. Thank you.

@GeoffryGifari Год назад

And lets say we have a very tall tube with superfluid at the bottom. how far can the superfluid creep up before gravity stops it?

@hoosierdaddy1469 Год назад

Thank you for this explanation regarding superfluids! It didn't make sense to me previously.

@vexxvp6098 Год назад

I’ve never been here this early, love your channel

@WillYouVid Год назад

PBS spacetime team / Matt O'Dowd do such a great job that one can focus, follow through and take up new concepts even when relaxing on the couch after a long day of work

@habibie Год назад

I have no words how GOOOD this is! 😊

@edmontontech2008 Год назад

I love how Anti-symmetric wave functions is phasing and noise cancelation in audio frequencies.

@volkhen0 Год назад

Great episode! Love the superfluid tea.

@robertrohm3559 Год назад

the only thing extra i can do besides donating rn to support this channel is posting this commect right. I love supporting PBS and i love supporting this channel.

@BrickTsar Год назад

Use of “the corpse of a dead star” could leave to charges

@DavidKennyNZL Год назад

Thanks another great episode.

@earthrocker4247 Год назад

I'm in way over my head, but still watching & learning something I guess. That was a useful visualisation of Bose-Einstein condensate and I'm adding to my knowledge of the attributes of Fermions and Bosons. Cheers. \m/ \m/