Physics Demo -- Superconductor

[henrique773]

thats like the super train rails in japan isnt it?

[SuperKako17]

@MrNonsense: try 15 naked women in your bed...

[iamhoops]

@SuperKako17 Yes, of course, because there's NOTHING more exciting than SEX. *eyeroll*

[uikgrtms10]

不思議だー(@_@。

[hypersonic124]

What exactly is the superconductor made of? And if anyone knows, where can I get one? Thanks.

[deva95]

@hypersonic124

You fail.. you can get them for free but you need -200Celcius to actually make it superconduct 

[phanchieta]

@hypersonic124 Superconductors can be actually made of several materials. In this vid, they use a bismuth-based one (see the notes). As you decrease the temperature, tending to 0 Kelvin, the internal resistance of the superconductors also tends to zero, creating this result.

[MrJouleJr]

Assistant: Hey! Chief, it won't levitate.

Chief: Oh, don't worry! Just put a bit more liquid nitrogen in there. That should do!

[Soulless99]

What the hell is going on?

[shiftri]

Well with Nvidia PhysX I can kill mother fucking ALIENS. Lets see you do that, stupid NORMAL physics.

[AndrejDammer]

what is the nitrogen doing?

[physicmad]

@AndrejDammer cooling the superconductor - at room temperature the superconductor doesnt emit any superconductive properties because of it exibiting resistance - when cooled on the other hand the material's resistance drops exponentially untill it reaches pure zero. Its the opposite effect of a wire being heated. The more a wire is heated the more resistance the wire exibits.

[Zantorc]

This is a fail. I really would have expected MIT to get the physics right and not to confuse the Meissner effect with induction in a perfect conductor. Obviously educational standards have fallen.

[win2rgirl]

can you please explain why there is a copper base?

[hobomnky]

@win2rgirl im pretty sure its not doing anything important, probably just there to hold up the superconducter and probably conduct the heat out of the super conductor, i guess its a heat sink, let me know if im wrong

it doesnt seem to be needed, as the super conducter does all the work

[physicmad]

@win2rgirl the copper base is acting as a heat sync or more strictly cold sync. it acts sorta like a capacitor holding the temperature of the liquid nitrogen keeping the superconductor cool for longer periods of time.

[henrykay01]

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H. Tomasz Grzybowski

tel. +48-512-933-540

[RavenPrecept]

@henrykay01 don't be so selfish, just tell us how to do it and I will buy you a pint.

[henrykay01]

@RavenPrecept If I made it public knowledge, then nobody could get a patent on it, which guarantees that nobody wuold make it. It has to be a highly profitable undertaking.

[physicsbugga]

@henrykay01 dont listen to this guy, it is I who has the revolutionary way to make energy. So gives all the monies to me!!!!!!

[Ehatcha]

Hah Earth's mass just got pwned.

[danishrs]

lol

[IAmMeSomeRandomStuff]

haha xD

[RavenPrecept]

@Ehatcha wanna get some of that unobtainium from Pandora. get those f-king blue people out of their tree then dig it up.

A super conducting mineral at room temperature.

[acr08807]

@Ehatcha Not really. The magnet got heavier.

[xtelevisionset]

@acr08807 I think he is referring to the gravitational pull of the Earth. All of the mass of the Earth and yet this tiny magnet hovers.

[Mrbaltimore108]

I just read about "warm" superconductors. Very interesting subject! Sounds like we're going to see a lot of applications of it in the coming years.

[KileSimons]

Problem with warm superconductors though, is that they don't exist... yet.

[RavenPrecept]

@KileSimons I just watched Avatar, if that's real and not fantasy all you need to do is digg up the mineral which is an ambient temperature super conductor. It's what causes the Hallelujah mountains to float.

[KileSimons]

@RavenPrecept I think I've found a small flaw in your plan: Avatar is in fact fantasy, and so are warm superconductors.

[PsionNinja]

instead of having to use dangerous liquid nitrogen, use a Stirling engine cooler. Some finely tuned Stirling coolers can get get as low as a few degrees above absolute zero.

[SilentEliminator]

@PsionNinja

liquid nitrogen is not really dangerous... Just REALLY cold ;)

[Splooshiba]

@PsionNinja dangerous liquid nitrogen???

[TarimBasinll]

this is meissner efect, isn't fake ( super conductor and iman)

[1223gio8]

mit is kool

[Zantorc]

Re the description:

"Superconductors have the unique property of providing zero resistance... This property also leads to the fact that superconductors will expel all magnetic fields, a phenomenon called the Meissner Effect. "

Wrong, zero resistance + Maxwell does not imply the Meissner effect. Furthermore what is taking place here can be treated as induction completely ignoring the Meissner effect. So many mistakes - this is not a good advert for MIT.

[MrBruzzo]

If you want to buy a superconductor:

Search in google for "YBCO".

You will find an advertisement on the right hand side.

[GAGEandTRISTAN]

this is NOT fake!

iv seen my teacher do it

[pretor89]

And no, definitely not fake.

[NoirNG]

F A K E!

[brandon32405]

if you use this in space you end up with artafishal gravity

[pretor89]

What's "artafishal" gravity?

[6feetdownedge]

r... r u like 10? first of all wat is "artafishal" and really come on....

[Chachachadaa]

awesome

[steamburn123]

so actually what does superconductor uses for?

[kronchev]

Computers, locomotion, anything where you either need to remove as much friction as possible or conduct electricity as efficiently as possible would benefit from superconductor.

Unfortunately as this video shows you need LN2, which is very very cold. Room-temperature superconductors would revolutionize the world.

[KevinLounsberry]

"looks crap" ? what the hell do you even mean?

[RockGodZeppelin]

comon just stick your hand in there

[emeoc1]

Why is the superconductor placed on top of copper?

[screwball3z]

my guess is to transfer heat, as opposed to submerging the super conductor in the liquid nitrogen

[MrNonsense]

oh man that's so crazy..nothing more exciting than physics!