Spinning Super Fluids: Reach Relativistic Speeds?

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Since there is no friction on a super fluid, can they be spun faster and faster until they reach relativistic speeds? I'm not totally sure the method you would use to spin the fluid, possibly electromagnatism somehow but assuming it were possible.
 
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Er... how do you propose you get it to spin? It has no viscosity. So if you spin the container it is in, it still won't spin! And this is not a supercurrent, so EM interaction doesn't cut it.

Zz.
 
Well if it was a farafluid it could be spun with electromagnatism right?
 
AKatawazi said:
Well if it was a farafluid it could be spun with electromagnatism right?

A what?

Zz.
 
Well, if you also look at that reference, you would have noticed that it says that a ferrofluid in a magnetic field causes the fluid to polarized along the field. It says nothing about creating any kind of vortices similar to what you get for a supercurrent.

So I still fail to understand why this is relevant here, and how you intend to spin your superfluid.

Zz.
 
I asked a question here, probably over 15 years ago on entanglement and I appreciated the thoughtful answers I received back then. The intervening years haven't made me any more knowledgeable in physics, so forgive my naïveté ! If a have a piece of paper in an area of high gravity, lets say near a black hole, and I draw a triangle on this paper and 'measure' the angles of the triangle, will they add to 180 degrees? How about if I'm looking at this paper outside of the (reasonable)...
The Poynting vector is a definition, that is supposed to represent the energy flow at each point. Unfortunately, the only observable effect caused by the Poynting vector is through the energy variation in a volume subject to an energy flux through its surface, that is, the Poynting theorem. As a curl could be added to the Poynting vector without changing the Poynting theorem, it can not be decided by EM only that this should be the actual flow of energy at each point. Feynman, commenting...

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