can anyone explains why superconductor sometimes need liquid helium?for example, An MRI machine need helium to operate, is it for cooling process or for the magnet to operate? Instead of helium, why MRI machine doesn't use liquid nitrogen? i'm wondering...
Helium-3 is an isotope of helium which has only one neutron (+ 2 protons) in its nucleus rather than two like helium-4. It can become superfluid, but at much lower temperatures than He-4.
To address all the comments about helium "running out": Most helium on earth is the result of radioactive decay (alpha particle emission and electron capture) over a very long period of time. As such, the helium reserves on earth are finite. The main method of helium extraction is distillation from natural gas which contains up to 7% helium. Worldwide reserves and resources of helium are abundant and at the current rate of extraction will last several centuries.
@ryanhaart And then, we can just produce it from nuclear fusion or extract it from the Solar System's gas giants, with technologies I trust we'll have developed within the next three or four-hundred years.
@endsitall You can't "create" energy, you can only take it away. If you take the energy away there is no more energy left for the fountain. The whole fountain is a closed energycircuit whichs energys compensate themselves, no perpetuum mobile there!
...'until 2 Degrees above absolute zero a dramatic transformation takes place'. at this point I was expecting the narrator to say Eric becomes BANANA MAN!
I think that if you are very open minded, and this super cooled helium existed in very exotic places that we have not discovered yet: such as a very deep crevas in the ocean, or in space, it could proove devistating to a vessel that would come in contact with it, because of penetrating properties of the hydrogen in this state.
It's the wave form or action that gives matter mass. Near absolute zero the wave actions ceases, and the helium looses mass. That's why it can pass through the beaker.
The Greatest SCIENTIFIC Explanation. The SPIRIT Lives! HEAVENLY FATHER HAS APPEARED AND HE WALKS AMONG US. Only the Creator Himself can reveal His vision as His own. All the FUTURE He forwards in his gift to humanity..// watch LA PAROLA IN CUATRO and merge with the greatest pronouncement of highest science, as He reveals all Creation. Watch and rejoice…this is Real !! Yes, it is He ! @ La Parola In Cuatro. (He even looks like ZEUS !! )
so helium can be in solid form at 1.5 k and 25 bar of pressure? isn't that close to 25 atmosphere's of pressure? and would'nt the countainer crack due to the helium leaking through pores within the countainer? anyway of doing this experiment small scale? say with only materials one would find at home? the idea of having a never ending whirlpool in a coffee mug is pretty funny to me
Superfluid helium can indeed leak through intact solids (and climb up the walls of the container and self-empty via surface-tension/capillary-action), but in this case, the base of the container is fractured.
@ankit383 as of now no, but after absolute 0 everyone and everything would be dead so i don't thing we can ever see it or ever want to in that matter.
@cmd2tuts Wow, I looked into that and saw that hydrogen solidifies at 14K, why is this considerably higher than Helium. Does it have something to do with the greater inter-molecular forces in Helium (LDFs)?
@bluefire10210 it does, theroetically, but in practice, no, it can't because there is energy everywhere so in deep space it can't happen and in labortory, if it was to get to 0K the equipment would stop working...
gravity does not exist...what we believe to be gravity is in fact electric&magnetic effects.. that is why this superfluid defies gravity! We "live" in an electric universe
@danjoelabrenica ..well then, how can you explain the fact that this kid "attracts" objects with his body? non magnetic ones too... or even the fact that pure oxygen will stick to a magnet..don't get me wrong: I'm not saying that I hold the truth..but what we are being teached as LAWs of physics are somewhat inaccurate..
@Choice777 No, it doesn't. If you stopped adding the energy required to cool helium below its lambda point, the motion would stop. It is virtually impossible to create a perpetuum mobile.
This comment has received too many negative votesshow
We're projected to run out of helium in 25 to 30 years because of a law that passed saying that the US National Helium Reserve must be sold off by 2015. There is no way to manufacture it and many forms of advanced technology are cooled by it. Say goodbye to satellites and MRI's.
@taurusclimber Please identify why you claim helium cannot be manufacture? Much of the Reserve helium was itself manufactured from natural gas processing in the US. Why would this method suddenly disappear? Are you claiming that no more suitable natural gas supplies exist in the US? If so, please cite your source.
The Reserve is being sold off because it was operating at over a billion dollars in debt. If the choice is cutting defense, social programs or government owned dirigible gas - well.
@taurusclimber Your claim that we will "run out of helium" is rubbish. First of all, just because the US National Helium Reserve is reduced does not mean there is no other helium available. The US is not the only country in the world, you know, although this concept is sometimes hard to understand for Americans. Secondly, helium is a natural by-product of natural gas extraction, so there is plenty of it everywhere.
@ryanhaart Really, the US isn't alone? I guess I was bad at geography. Jeez. Shocking. The fact is, helium can't be manufactured. Eventually, if we keep using it, we WILL run out of helium. Ever heard the term non-renewable resource?
@ryanhaart yeh americans are a funny bunch they think every other country on earth is 3rd world and second class im glad im a poor british person id hate to be a poor american
@ryanhaart Well, his (completely valid) point was that eventually helium will run out... will not happen quite that fast because new resources will be found. But yes, eventually all earthly helium will have escaped to space.
Helium does not weigh enough for the Earth's magnetic fields to retain it in the earth, and can escape GLOBALLY, and it has an escape velocity of 7 MILES PER SECOND. Sooner than you think, we will run out of helium.
A little research goes a long way.
American bashing eh? Ahh well, Harvard and Princeton Universities are still ranked number 1 in the world. Perhaps you should read my words, and comprehend them at the same time. I understand that's how most logically sound people do it.
@TBird4490 Who ranks Princeton and Harvard "Number 1 in the world?". There is no authoritative global comparison survey of universities. Yet another US parochial comment.
@ryanhaart Actually if you had the slightest bit of intelligence regarding this matter, there are non-biased groups that DO rank universities worldwide, that aren't even from the U.S, such as RatER. Look it up. I just substantiated a claim that you said did not exist, while dismantling your entire argument of claiming it's a "US parochial comment", as it is not an American group. Thanks for playing. I wouldn't be so cocky if you had only researched this just a LITTLE lmao.
@ryanhaart I think you have jumped the gun a little with your comment. There actually is a big problem with supply in the helium 3 market. Research labs in some countries right now that cant keep their fridges cold because of inability to access helium 3, and it is holding back fusion research. The problem has been significantly exacerbated by the TSA. It is of such concern that there are serious minds in multiple countries proposing to go the moon to collect it.
Though the US is not the only country, I am told that it contains about 30% of the world's helium reserves. Secondly, are you sure it's a natural byproduct of all natural gas extraction? The gas reserves have to be encased in radioactive rock.
@ryanhaart Helium leaves the planets atmosphere. We will run out eventually dumbass. Of course we can make more through radioactive decay but eventually we will run out of that too.
@kevinh2206 Think about a balloon filled with helium. It rises above the air because it's lighter than the elements in the air, such as nitrogen and oxygen. The same thing happens when you pop the balloon, you just can't see it, and all that helium just keeps rising.
All gas molecules are moving; and at any given temperature the lighter ones are moving faster. Hydrogen and helium are the lightest, and over time they can escape the Earth's gravity like a spacecraft (but not Jupiter's or Saturn's, hence their atmospheres contain a lot)
@tjrams73 One more time for you. Helium is a by-product of natural gas. There is plenty of it captured in the earth's crust and can be extracted. Of course eventually that will run out too, but not for many centuries. By the way, please keep the etiquette in your comments, as otherwise I will have to delete them.
@ryanhaart you're right but from the natural gas of radioactive materials decaying (i.e Thorium element 90) so yes we are running out of helium because it takes thousands of years for radioactive materials to decay.
@ryanhaart Some radioactive elements, such as uranium, release alpha particles when they decay. An alpha particle is just a helium atom with no electrons. Deep in the Earth where these radioactive decays take place, the alpha particles capture electrons and become helium.
As the radioactive deposits age, large quantities of helium become trapped in underground caverns.
There are only about 5 parts of helium for every 100,000 parts of air.
@WeskerUmbrella4 Once again, there is plenty of Helium alongside natural gas. We do not have to rely on alpha particle generation you describe. Eventually, we will run out of all natural resources, but running out of helium will be the least of our worries.
@taurusclimber Well at least we know it is possible to make it. That way if it becomes necessary I'm sure we can find a way to make it cost effective.
if the helium can create perpetual motion then why is is said to be imposible to build a pepetual motion machine maybe im confused but im just wondering
@cheasify go into space,and spin a top.it will.never.stop.spinning.I think the problem is generators cause friction,and friction,plus gravity and other forces make it impossible in any practical way.
The fountain makes sense in a way. With zero friction, the force of the falling fluid should exert a force on the fluid below, pushing it up. This flow up and down would then stop immediately if something disturbed it.
@mdoerkse only if it could be kept apart from thermal energy. even in vacuum space eventually enough energy would be absorbed as heat to prevent superfluidity. I have also heard that it's "near frictionless"
i wonder what would happen if you put this stuff in an inertube shaped container and somehow made it spin around and around while accelerating... eventually, wouldnt it surpass the speed of light with no friction or anything to slow it down?
@125sonicboom No. In order to accelerate the liquid, you need to add energy to it. You cannot accelerate anything that has a rest mass to the speed of light, because you would need to add infinite energy to achieve the acceleration. The fact that there is no friction just means that the fluid will not slow down when no further energy is added.
@ryanhaart Oh. Sorry about my ignorance. I'm really really interested in physics and science and whatnot, but I don't know all that much about it (obviously). I feel a bit stupid now lol.
@drummerjmm They didn't exactly claim "Oh yeah, we found something that went faster than light!". They think they did, and are putting it up for delegation because they want to be proven wrong/right.
@siegfriedwii No, it's not "under debate". What you are referring to is probably the measurement of neutrinos apparently travelling faster than the speed of light. The authors of that paper have put it to public scientific scrutiny to find any flaws in the measurement. Right now, the scientific community is trying to find any errors in that measurement so that it can be reconciled with the theory of relativity.
@ryanhaart The GPS satellites used to measure the departure and arrival times of the racing neutrinos were themselves subject to Einsteinian effects, because they were in motion relative to the experiment. This relative motion wasn't properly taken into account, but it would have decreased the neutrinos' apparent journey time. the difference comes out at 64 nanoseconds. Sound familiar? That's because it's almost exactly the margin by which CERN's neutrinos were supposed to have beaten light.
@ryanhaart If the meassurements are correct, it cannot be reconciled, the speed of light being the speed limit of the universe is the corner stone for relativistic theorist. This just means that we have to change our conception of the universe once again, and if you ask me it was about time. Many embrace these theories (general and special theory) as if they were spoken to the human race by God himself.
@TheKrak696 the experimental evidence for relativity is overwhelming, and that is why scientists currently believe these theories to be correct. We have one single measurement of neutrinos that appear to be travelling faster than light, and there could be all kinds of reasons why the measurement might be wrong. One single measurement that could or could not be right does spend the end of a theory that has has solid experimental evidence for 80 years.
@ryanhaart So far the best claim I've heard for the neutrino experiments (assumes they did exceed c but doesn't break relativity) was a theory that states these supercharged neutrinos could have in a sense changed its state into a particle we have not yet discovered capable of traveling backwards through time, giving the appearance of moving faster than light.
Granted, a measurement error is millions of times more likely but this explanation makes more sense than relativity being "broken."
@dmh091 Why would you say that? It truly is the best explanation I've encountered given the small chance that the neutrino truly did exceed light speed. It would simply make more sense to accept the existence of a particle capable of traveling back through time than it would to sa that relativity is wrong. We know relativity isn't wrong--we use it every day.
If it makes any difference, this is also the opinion of notable astrophysicist Neil deGrasse Tyson.
I think the "best" explanation is that there is a problem with an experimental setup. Any "far out" ideas need to be left aside as a last possible recourse always :)
@ryanhaart That does not necessarily mean that errors will be found. Such is the nature of science; its principles are constantly adapted to meet with new discoveries, not the other way around. You make it seem definitive. That is not the case. While I do believe it's near impossible, science is never 100% sure of anything this general. Everything can be debased under specific conditions. The theory of relativity is not absolute; it is just that, theory. Albeit great theory, it is still theory.
@ryanhaart acording to 1:30 that is a form of perpetuum mobile...right ? as long as there is some place in the universe cold enough with pure enough helium, then it would for forever moving on it's own. like this endless fountain.
@Choice777 in theory yes. However, the ambient temperature in spaceis 2.725 Kelvin due to the cosmic background radiation, too high for Helium to be superfluid.
@125sonicboom no, actually that is an area of research and no one really knows, but adding energy would create quantum vertices on the sample which is pretty cool n_n
@mcdudly00 yeah, no friction. Thats what "zero viscosity" means. you would have friction if you moved through it, but it has no friction against itself.
Did the temperature reach 0K? (Absolute Zero) Because, in theory, all molecules stop moving then, even the universe isn't that cold - as far as we know; if Helium defies that, then scentists are going to have a bird!
Nifty, never looked up what a Super-fluid was. I suppose this has implications for why fluid is viscous at all. Maybe magnetism is a factor in why fluid is viscous, and at a super-cool, possibly super-conductive state, there isn't any electrical resistance to allow fluid to drag on itself.
can anyone explains why superconductor sometimes need liquid helium?for example, An MRI machine need helium to operate, is it for cooling process or for the magnet to operate? Instead of helium, why MRI machine doesn't use liquid nitrogen? i'm wondering...
najibudin8888 3 days ago
fountain without friction? ok, now to get started on the economy.
RHVids100 6 days ago
it wants out
LOPEZdJUNGLIST 1 week ago
o, I didn't study science and I did't expect it will be such interesting & amazing =)
karumentic 2 weeks ago
Ima put that on my car
1luv624 2 weeks ago
@1luv624 why?
Ericman2043 2 weeks ago
Sweet vid, anyone no what helium 3 is?
locatorjohn 2 weeks ago
@locatorjohn
i knw wht helium 3 is :D
tafel1231 4 days ago
@locatorjohn
Helium-3 is an isotope of helium which has only one neutron (+ 2 protons) in its nucleus rather than two like helium-4. It can become superfluid, but at much lower temperatures than He-4.
geordy58 3 days ago
and they say there is no God.
lol
tripletrules 2 weeks ago
@tripletrules what does that have to do with this?
asshatnowhere159 2 weeks ago
Zero viscosity? Thats crazy cool
Navillus2669 2 weeks ago
To address all the comments about helium "running out": Most helium on earth is the result of radioactive decay (alpha particle emission and electron capture) over a very long period of time. As such, the helium reserves on earth are finite. The main method of helium extraction is distillation from natural gas which contains up to 7% helium. Worldwide reserves and resources of helium are abundant and at the current rate of extraction will last several centuries.
ryanhaart 3 weeks ago 4
@ryanhaart And then, we can just produce it from nuclear fusion or extract it from the Solar System's gas giants, with technologies I trust we'll have developed within the next three or four-hundred years.
clydeyello 1 week ago
if its an infite fountain. why couldn't it be used to create energy
endsitall 3 weeks ago
@endsitall You can't "create" energy, you can only take it away. If you take the energy away there is no more energy left for the fountain. The whole fountain is a closed energycircuit whichs energys compensate themselves, no perpetuum mobile there!
1aMattes 3 weeks ago
@1aMattes thanks for the info
endsitall 2 weeks ago
@endsitall because it needs energy to keep it as a super fluid or near absolute zero. otherwise it would flow forever.
Halpin994 3 weeks ago
@Halpin994 cool thanks
endsitall 2 weeks ago
So river of this superfluid could flow uphill? Interesting...
ihr0ppa 3 weeks ago
...'until 2 Degrees above absolute zero a dramatic transformation takes place'. at this point I was expecting the narrator to say Eric becomes BANANA MAN!
DJErrn 1 month ago
My mind = Blown
GreatCanadianX 1 month ago
So if I mention anti gravity my post will be deleted? Wonder if I mention gravitons, or dark energy, or negative mass.
vampov 1 month ago
Yo I got a super flow like liquid helium. Lol
BoomDelaZapp 1 month ago
Part 2 please, or at least a link. this is incredibly interesting
imworth8dollars 1 month ago 25
@imworth8dollars Watch NOVA's "Absolute Zero" It's on netflix as well as on PBS's youtube channel.
ReasonsAdvocate 1 month ago
Has an example of solid Oxygen ever been produced on Earth? Or do we not have the technology to do so? Thanks!
skaught911 1 month ago
@skaught911 there is solid oxygen as the temperature to solidify oxygen is much higher than that of helium. just research solid ox or solid oxygen
Jordan121214 1 month ago
Comment removed
geordy58 3 days ago
@skaught911
Yes, its freezing point is -218 deg C, no problem.
geordy58 3 days ago
I think that if you are very open minded, and this super cooled helium existed in very exotic places that we have not discovered yet: such as a very deep crevas in the ocean, or in space, it could proove devistating to a vessel that would come in contact with it, because of penetrating properties of the hydrogen in this state.
HydrocephalusTube 1 month ago
@HydrocephalusTube sorry...meant to say helium.
HydrocephalusTube 1 month ago
nice - thx for uploading
2plus2make4 1 month ago
oh, here, w (dot) waynemcmichael (dot) com (slash) iwt
batmandeltaforce 1 month ago
It's the wave form or action that gives matter mass. Near absolute zero the wave actions ceases, and the helium looses mass. That's why it can pass through the beaker.
batmandeltaforce 1 month ago
@batmandeltaforce don't be daft
salerio61 1 month ago
@salerio61 ...ok
batmandeltaforce 1 month ago
Thank you, this fits perfectly with my Infinite Wave Theory of the universe... perfect.
batmandeltaforce 1 month ago
Whats this from?
abc123icuucme 1 month ago
Is antigravity really pesudoscience? Why do you say that?
There was a really good documentary about it on Discovery which seemed reasonable.
And what would we be able to do with solid helium?
JustineBieberxoxo 1 month ago
I get how this is an amazing thing, bit where can it be applied?
denalimo 1 month ago
@denalimo scientific research and advancement?
ernis1100 1 month ago
Comment removed
deza708 1 month ago
guys, guys stop arguing. How about we all just agree that E=MC^2
fjzerpa 1 month ago
@fjzerpa doesnt that mean "energy equals mass times watever squared"?
IRISHDRUNK1243 1 month ago
geil!
TheHanfiHanf 1 month ago
does that mean we can have perpetual motion?
kinglynx 1 month ago
Comment removed
HomosexualHulk 1 month ago
Sooooo watching this programme now ^^
imnoemo11 1 month ago
This has been flagged as spam show
The Greatest SCIENTIFIC Explanation. The SPIRIT Lives! HEAVENLY FATHER HAS APPEARED AND HE WALKS AMONG US. Only the Creator Himself can reveal His vision as His own. All the FUTURE He forwards in his gift to humanity..// watch LA PAROLA IN CUATRO and merge with the greatest pronouncement of highest science, as He reveals all Creation. Watch and rejoice…this is Real !! Yes, it is He ! @ La Parola In Cuatro. (He even looks like ZEUS !! )
bortelliM 1 month ago
So.... wouldn't this be what they need to make some of those those water based "perpetual engines" work?
A container that the liquid "creeps out of" like they show here and capillary action to bring it back to the top?
88Kamikaze69 1 month ago
so helium can be in solid form at 1.5 k and 25 bar of pressure? isn't that close to 25 atmosphere's of pressure? and would'nt the countainer crack due to the helium leaking through pores within the countainer? anyway of doing this experiment small scale? say with only materials one would find at home? the idea of having a never ending whirlpool in a coffee mug is pretty funny to me
gangstavillain 2 months ago
0:59 - the base of the container cracks.
Superfluid helium can indeed leak through intact solids (and climb up the walls of the container and self-empty via surface-tension/capillary-action), but in this case, the base of the container is fractured.
Matrix29bear 2 months ago
But will it bend?
Damasteroo7 2 months ago
is there such thing as a 0 viscosity or just a very very very small amount of viscosity but not 0?
danjoelabrenica 2 months ago
Can solid helium even exist?
ankit383 2 months ago 32
@ankit383 as of now no, but after absolute 0 everyone and everything would be dead so i don't thing we can ever see it or ever want to in that matter.
MiL0JoneS 2 months ago
@ankit383 yes it can, at a temperature of 1–1.5 K and more than 25 bar (2.5 MPa) of pressure.
ryanhaart 2 months ago 44
@ryanhaart Thank you
ankit383 2 months ago
@ryanhaart What equations did you use to figure that out?
juanarruti 2 months ago
@ryanhaart
Ok then, does it exist anywhere in the universe ? - and, has it ever existed ?
zamestol 2 months ago
@ankit383 we use it at labs ;-)
bramboy95 2 months ago
@ankit383 It exist on Saturn.
Along with solid hydrogen, which I think is even more amazing.
cmd2tuts 2 months ago
@cmd2tuts Wow, I looked into that and saw that hydrogen solidifies at 14K, why is this considerably higher than Helium. Does it have something to do with the greater inter-molecular forces in Helium (LDFs)?
ankit383 2 months ago
@ankit383 at 0 K everything is solid as atoms just stop moving
namdamada 1 month ago
@namdamada 0 K doesnt exist
bluefire10210 1 month ago
@bluefire10210 it does, theroetically, but in practice, no, it can't because there is energy everywhere so in deep space it can't happen and in labortory, if it was to get to 0K the equipment would stop working...
namdamada 1 month ago
@ankit383 would be a nice icecream^^
instrumentenfreak 3 weeks ago
gravity does not exist...what we believe to be gravity is in fact electric&magnetic effects.. that is why this superfluid defies gravity! We "live" in an electric universe
Mr0071369 2 months ago
@Mr0071369 thats just a part of quantum mechanics, plus magnets only attract metals and not humans or other nonmetals
danjoelabrenica 2 months ago
@danjoelabrenica ..well then, how can you explain the fact that this kid "attracts" objects with his body? non magnetic ones too... or even the fact that pure oxygen will stick to a magnet..don't get me wrong: I'm not saying that I hold the truth..but what we are being teached as LAWs of physics are somewhat inaccurate..
Mr0071369 1 month ago
@Mr0071369 Prove it and win the Nobel Prize.
taurusclimber 2 months ago
ok...so 1:30 proves there is perpetual motion !
Choice777 2 months ago
@Choice777 No, it doesn't. If you stopped adding the energy required to cool helium below its lambda point, the motion would stop. It is virtually impossible to create a perpetuum mobile.
Flash2Vanish 2 months ago
Does Frozen Helium have any special properties different to the other frozen gases
mysay2u 2 months ago
This comment has received too many negative votes show
We're projected to run out of helium in 25 to 30 years because of a law that passed saying that the US National Helium Reserve must be sold off by 2015. There is no way to manufacture it and many forms of advanced technology are cooled by it. Say goodbye to satellites and MRI's.
taurusclimber 2 months ago
@taurusclimber Please identify why you claim helium cannot be manufacture? Much of the Reserve helium was itself manufactured from natural gas processing in the US. Why would this method suddenly disappear? Are you claiming that no more suitable natural gas supplies exist in the US? If so, please cite your source.
The Reserve is being sold off because it was operating at over a billion dollars in debt. If the choice is cutting defense, social programs or government owned dirigible gas - well.
robreyreynolds 2 months ago
@taurusclimber could you please explain that to me,i'm like a kid,but shouldn't entropy make helium a least concern?
gC222SA 2 months ago
@taurusclimber Your claim that we will "run out of helium" is rubbish. First of all, just because the US National Helium Reserve is reduced does not mean there is no other helium available. The US is not the only country in the world, you know, although this concept is sometimes hard to understand for Americans. Secondly, helium is a natural by-product of natural gas extraction, so there is plenty of it everywhere.
ryanhaart 2 months ago 67
@ryanhaart Really, the US isn't alone? I guess I was bad at geography. Jeez. Shocking. The fact is, helium can't be manufactured. Eventually, if we keep using it, we WILL run out of helium. Ever heard the term non-renewable resource?
taurusclimber 2 months ago
@ryanhaart yeh americans are a funny bunch they think every other country on earth is 3rd world and second class im glad im a poor british person id hate to be a poor american
1ukjunglednbraver 2 months ago
@ryanhaart Well, his (completely valid) point was that eventually helium will run out... will not happen quite that fast because new resources will be found. But yes, eventually all earthly helium will have escaped to space.
Klodvig105 1 month ago
@ryanhaart Owned him.
cowgoesmoo2 1 month ago
Comment removed
TBird4490 1 month ago
Helium does not weigh enough for the Earth's magnetic fields to retain it in the earth, and can escape GLOBALLY, and it has an escape velocity of 7 MILES PER SECOND. Sooner than you think, we will run out of helium.
A little research goes a long way.
American bashing eh? Ahh well, Harvard and Princeton Universities are still ranked number 1 in the world. Perhaps you should read my words, and comprehend them at the same time. I understand that's how most logically sound people do it.
TBird4490 1 month ago
@TBird4490 but its constantly being made naturally
IRISHDRUNK1243 1 month ago
@TBird4490 Who ranks Princeton and Harvard "Number 1 in the world?". There is no authoritative global comparison survey of universities. Yet another US parochial comment.
ryanhaart 4 weeks ago
@ryanhaart Actually if you had the slightest bit of intelligence regarding this matter, there are non-biased groups that DO rank universities worldwide, that aren't even from the U.S, such as RatER. Look it up. I just substantiated a claim that you said did not exist, while dismantling your entire argument of claiming it's a "US parochial comment", as it is not an American group. Thanks for playing. I wouldn't be so cocky if you had only researched this just a LITTLE lmao.
TBird4490 4 weeks ago
@ryanhaart I think you have jumped the gun a little with your comment. There actually is a big problem with supply in the helium 3 market. Research labs in some countries right now that cant keep their fridges cold because of inability to access helium 3, and it is holding back fusion research. The problem has been significantly exacerbated by the TSA. It is of such concern that there are serious minds in multiple countries proposing to go the moon to collect it.
2plus2make4 1 month ago
@ryanhaart
Though the US is not the only country, I am told that it contains about 30% of the world's helium reserves. Secondly, are you sure it's a natural byproduct of all natural gas extraction? The gas reserves have to be encased in radioactive rock.
migkillertwo 1 month ago
@ryanhaart Helium leaves the planets atmosphere. We will run out eventually dumbass. Of course we can make more through radioactive decay but eventually we will run out of that too.
tjrams73 1 month ago
@tjrams73 how does it leave the atmosphere?
kevinh2206 3 weeks ago
@kevinh2206 It's lighter than all the other gases in our atmosphere so it just rises above them.
tjrams73 3 weeks ago
@tjrams73 so there is a layer off helium in the atmosphere?
kevinh2206 3 weeks ago
@kevinh2206 No it just rises above the atmosphere and diffuses into space I believe.
tjrams73 3 weeks ago
@tjrams73 i thought gravity held it down...
kevinh2206 3 weeks ago
@kevinh2206 Think about a balloon filled with helium. It rises above the air because it's lighter than the elements in the air, such as nitrogen and oxygen. The same thing happens when you pop the balloon, you just can't see it, and all that helium just keeps rising.
tjrams73 3 weeks ago
@kevinh2206
All gas molecules are moving; and at any given temperature the lighter ones are moving faster. Hydrogen and helium are the lightest, and over time they can escape the Earth's gravity like a spacecraft (but not Jupiter's or Saturn's, hence their atmospheres contain a lot)
geordy58 3 days ago
@tjrams73 One more time for you. Helium is a by-product of natural gas. There is plenty of it captured in the earth's crust and can be extracted. Of course eventually that will run out too, but not for many centuries. By the way, please keep the etiquette in your comments, as otherwise I will have to delete them.
ryanhaart 3 weeks ago
@ryanhaart you're right but from the natural gas of radioactive materials decaying (i.e Thorium element 90) so yes we are running out of helium because it takes thousands of years for radioactive materials to decay.
columbiasmiles 1 month ago
@ryanhaart Some radioactive elements, such as uranium, release alpha particles when they decay. An alpha particle is just a helium atom with no electrons. Deep in the Earth where these radioactive decays take place, the alpha particles capture electrons and become helium.
As the radioactive deposits age, large quantities of helium become trapped in underground caverns.
There are only about 5 parts of helium for every 100,000 parts of air.
We will eventually run out of helium.
WeskerUmbrella4 1 month ago
@WeskerUmbrella4 Once again, there is plenty of Helium alongside natural gas. We do not have to rely on alpha particle generation you describe. Eventually, we will run out of all natural resources, but running out of helium will be the least of our worries.
ryanhaart 4 weeks ago
@taurusclimber You're funny.
MovieStudio620 2 months ago
@taurusclimber Helium is also a by-product of nuclear fusion reactors therefor we CAN manufacture it.
cowsrock94 2 months ago
@cowsrock94 Not in any meaningful quantity or at a reasonable cost. My point still stands.
taurusclimber 2 months ago
@taurusclimber Well at least we know it is possible to make it. That way if it becomes necessary I'm sure we can find a way to make it cost effective.
cowsrock94 2 months ago
@taurusclimber
ever heard of nuclear decay? I wonder what an alpha particle of uranium-238 could be if it have 2 protons & neutrons.. >:I
YouAreABunghole 1 month ago
@taurusclimber
2plus2make4 1 month ago
if the helium can create perpetual motion then why is is said to be imposible to build a pepetual motion machine maybe im confused but im just wondering
cheasify 2 months ago
@cheasify go into space,and spin a top.it will.never.stop.spinning.I think the problem is generators cause friction,and friction,plus gravity and other forces make it impossible in any practical way.
key word here is ''think''
gC222SA 2 months ago
The fountain makes sense in a way. With zero friction, the force of the falling fluid should exert a force on the fluid below, pushing it up. This flow up and down would then stop immediately if something disturbed it.
So super fluids ignore air friction as well?
Nabo00o 2 months ago
take it down to actual zero-K and be the person that destroys the universe
JustSomePerson888 2 months ago
Wait just a second!!
Isn't a super-fluid fountain the same thing as a perpetual motion machine?
CMLaneLV 2 months ago
You really ought to suck on a balloon, it might help your sense of humor a bit.
thetwinkleturnip 2 months ago
Non-stop frictionless fountain? Sounds like a perpetual motion device!
mdoerkse 2 months ago
@mdoerkse only if it could be kept apart from thermal energy. even in vacuum space eventually enough energy would be absorbed as heat to prevent superfluidity. I have also heard that it's "near frictionless"
thetwinkleturnip 2 months ago
.......So then if can be a fountain without the friction, then couldn't it also be used to harvest energy so we have a forever going energy source?
awsomeyoshi2 2 months ago
@awsomeyoshi2
As soon as you add a harvester device, you add a friction of some sort (energy transfer/energy loss).
Even if a closed system is able to sustain itself, it cannot create energy that isn't here in the first place.
Movement gives out energy, because movement is energy to begin with.
chibraxial 2 months ago
What would happen if you were to touch it at these freezing temperatures?
kbdalcour18 2 months ago
Meh XX and XXI century science....very primitive. They don't even know how to travel faster than light. Jeez.
oldi184 2 months ago
How would one go about slowing down such a substance if there was no friction? Would you have to cool it so that energy is released?
Supernam07 2 months ago
@SuicideBoner8IIIIIID id munch that right down
HFRockerMMT 2 months ago
i wonder what would happen if you put this stuff in an inertube shaped container and somehow made it spin around and around while accelerating... eventually, wouldnt it surpass the speed of light with no friction or anything to slow it down?
125sonicboom 3 months ago
@125sonicboom No. In order to accelerate the liquid, you need to add energy to it. You cannot accelerate anything that has a rest mass to the speed of light, because you would need to add infinite energy to achieve the acceleration. The fact that there is no friction just means that the fluid will not slow down when no further energy is added.
ryanhaart 3 months ago 15
@ryanhaart Oh. Sorry about my ignorance. I'm really really interested in physics and science and whatnot, but I don't know all that much about it (obviously). I feel a bit stupid now lol.
125sonicboom 3 months ago
@ryanhaart Neutrinos have recently been found to exceed the speed of light.
Mrtheunnameable 2 months ago
@Mrtheunnameable the scientists who claimed that are still skeptical themselves about their experiment having a flaw.
Nolobot 2 months ago
@ryanhaart didnt CERN release a report just about a month ago claiming to have surpassed the speed of light?
drummerjmm 2 months ago
@drummerjmm They didn't exactly claim "Oh yeah, we found something that went faster than light!". They think they did, and are putting it up for delegation because they want to be proven wrong/right.
JuanCee7 2 months ago
@ryanhaart the theory of reletivity is under debate now i believe because they made sub atomical paticals travel faster than light aparently
siegfriedwii 2 months ago
@siegfriedwii No, it's not "under debate". What you are referring to is probably the measurement of neutrinos apparently travelling faster than the speed of light. The authors of that paper have put it to public scientific scrutiny to find any flaws in the measurement. Right now, the scientific community is trying to find any errors in that measurement so that it can be reconciled with the theory of relativity.
ryanhaart 2 months ago 7
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integrit 2 months ago
@ryanhaart The GPS satellites used to measure the departure and arrival times of the racing neutrinos were themselves subject to Einsteinian effects, because they were in motion relative to the experiment. This relative motion wasn't properly taken into account, but it would have decreased the neutrinos' apparent journey time. the difference comes out at 64 nanoseconds. Sound familiar? That's because it's almost exactly the margin by which CERN's neutrinos were supposed to have beaten light.
integrit 2 months ago
@ryanhaart If the meassurements are correct, it cannot be reconciled, the speed of light being the speed limit of the universe is the corner stone for relativistic theorist. This just means that we have to change our conception of the universe once again, and if you ask me it was about time. Many embrace these theories (general and special theory) as if they were spoken to the human race by God himself.
TheKrak696 2 months ago
@TheKrak696 the experimental evidence for relativity is overwhelming, and that is why scientists currently believe these theories to be correct. We have one single measurement of neutrinos that appear to be travelling faster than light, and there could be all kinds of reasons why the measurement might be wrong. One single measurement that could or could not be right does spend the end of a theory that has has solid experimental evidence for 80 years.
ryanhaart 2 months ago
@ryanhaart So far the best claim I've heard for the neutrino experiments (assumes they did exceed c but doesn't break relativity) was a theory that states these supercharged neutrinos could have in a sense changed its state into a particle we have not yet discovered capable of traveling backwards through time, giving the appearance of moving faster than light.
Granted, a measurement error is millions of times more likely but this explanation makes more sense than relativity being "broken."
bladerunner12 2 months ago
@bladerunner1
You are obviously very poorly qualified to determine a "best claim."
dmh091 1 month ago
@dmh091 Why would you say that? It truly is the best explanation I've encountered given the small chance that the neutrino truly did exceed light speed. It would simply make more sense to accept the existence of a particle capable of traveling back through time than it would to sa that relativity is wrong. We know relativity isn't wrong--we use it every day.
If it makes any difference, this is also the opinion of notable astrophysicist Neil deGrasse Tyson.
bladerunner12 1 month ago
@bladerunner12
I think the "best" explanation is that there is a problem with an experimental setup. Any "far out" ideas need to be left aside as a last possible recourse always :)
dmh091 1 month ago
This has been flagged as spam show
@dmh091 Well if you read my original comment, I actually stated that.
"Granted, a measurement error is millions of times more likely but this explanation makes more sense than relativity being "broken.""
bladerunner12 1 month ago
@ryanhaart didn't they said that the error was about the latencies in satellite data transmissions?
omnisphera 2 months ago
@ryanhaart That does not necessarily mean that errors will be found. Such is the nature of science; its principles are constantly adapted to meet with new discoveries, not the other way around. You make it seem definitive. That is not the case. While I do believe it's near impossible, science is never 100% sure of anything this general. Everything can be debased under specific conditions. The theory of relativity is not absolute; it is just that, theory. Albeit great theory, it is still theory.
finalrasenganshinobi 2 months ago
@ryanhaart
holy cow you're smart!
128pinkfloyd 2 months ago
@siegfriedwii Wouldn't Cherenkov radiation be proof particles CAN travel faster than light?
They must have noticed when building the first reactor.
JustineBieberxoxo 2 months ago
@ryanhaart acording to 1:30 that is a form of perpetuum mobile...right ? as long as there is some place in the universe cold enough with pure enough helium, then it would for forever moving on it's own. like this endless fountain.
Choice777 2 months ago
@Choice777 in theory yes. However, the ambient temperature in spaceis 2.725 Kelvin due to the cosmic background radiation, too high for Helium to be superfluid.
ryanhaart 2 months ago
@ryanhaart man you're so good at physics that's rare
oanradukvids 2 months ago
@125sonicboom no, actually that is an area of research and no one really knows, but adding energy would create quantum vertices on the sample which is pretty cool n_n
AlbertoUdodelig 2 months ago
@SuicideBoner8IIIIIID DEATH BY BALLOON
kyliewog1 3 months ago
@SuicideBoner8IIIIIID
Solid helium does exist at -2 K
eatwoodman 3 months ago
@eatwoodman ??haha
stian1990 3 months ago
can you use those fountains with turbines to get power??
mcdudly00 3 months ago
@mcdudly00 no, it runs because there is no friction, a turbine would cause friction making it stop.
Creaform003 3 months ago
@Creaform003 no friction at all??!?!0.o
mcdudly00 3 months ago
@mcdudly00 yeah, no friction. Thats what "zero viscosity" means. you would have friction if you moved through it, but it has no friction against itself.
Creaform003 3 months ago
there must be a use for this in space
cubesandpi 3 months ago
well is it dripping through the glass or climb up over the edge, which is it ?it isnt both
ricktbdgc 3 months ago
Woah that's so cool... wait but... *thinks*
I'm confused. Sooo cool something with 0 velocity!
Tokibliss 3 months ago
@Tokibliss It's zero Viscosity not velocity :)
ARK0307 3 months ago
If someone tells you to lick the liquid helium, don't do it.
isopycnic 3 months ago
so with superfluid, what never loses the energy you can build a perpetuum mobile^^
jrw6137 3 months ago
@jrw6137 no because you need stupid amounts of Energy to cool it off to the point that it becomes a superfluid
and ceep it in that state
Meichmask 3 months ago
now I have to find out what 2012sDude said..
jjld90 3 months ago 21
@jjld90 now i have to find out what the dude replied to 2012sDude
JakeFuckingAlvarez 3 months ago
@JakeFuckingAlvarez hahahahahahahaha!
jjld90 3 months ago
@jjld90 now I have to find out what jjld90 said...
H057IL3 2 months ago
Did the temperature reach 0K? (Absolute Zero) Because, in theory, all molecules stop moving then, even the universe isn't that cold - as far as we know; if Helium defies that, then scentists are going to have a bird!
dressagerider1997 3 months ago in playlist dressagerider1997's favorites
@dressagerider1997 It's impossible to cool to absolute zero
Renegade30 3 months ago
helium is a gas :(
elcabezon2222 3 months ago
@elcabezon2222 In room temperature. If you cool it down to around -270 degrees Celsius it will turn into a liquid.
Ryanlauph 3 months ago
@elcabezon2222 Not if you lower the temurature enough~ Usually it is a gas!
TehOctober 3 months ago
This comment has received too many negative votes show
nerd fucks.....boil cum for 3 min or microwave..and u will get same sh it
2012sDude 3 months ago
nerd fucks.....boil cum for 3 min or microwave..and u will get same shit
2012sDude 3 months ago
i just love how helium and hydrogen work
CariagaXIII 4 months ago
Nifty, never looked up what a Super-fluid was. I suppose this has implications for why fluid is viscous at all. Maybe magnetism is a factor in why fluid is viscous, and at a super-cool, possibly super-conductive state, there isn't any electrical resistance to allow fluid to drag on itself.
ThereRLG2006 4 months ago
How do they cool helium down to almost absolute zero??
TheBlackDreamWorld 4 months ago
yeah yeah everything's gotta be super. now let me take a super shit
iNeedtricks 4 months ago