bigtallsob t1_iwgosoo wrote
Reply to comment by MurderDoneRight in AMD Now Powers 101 of the World's Fastest Supercomputers by Avieshek
Keep in mind that anything that appears to be "true perpetual motion" at first glance always has a catch that prevents it from being actual perpetual motion.
SAI_Peregrinus t1_iwhcom7 wrote
Perpetual motion is fine, perpetual motion you can extract enirgy from isn't. An object in a stable orbit with no drag (hypothetical truly empty space) around another object would never stop or slow down.
A time crystal is a harmonic oscillator that neither loses nor gains energy while oscillating. It's "perpetual motion" in the "orbits forever" sense, not the "free energy" sense. Also has nothing to do with quantum computers.
pterofactyl t1_iwinoyy wrote
Well no because for that “no drag” space to exist, it would need to be in an imaginary world, so perpetual motion does not exist either way.
MurderDoneRight t1_iwh3wgv wrote
True, a perpetual motion machine is impossible according to the laws of physics. But time crystals are not a machine, it's an entirely new kind of exotic matter on par with supersolids, superfluids and Bose-Einstein condensates!
bigtallsob t1_iwh8ebm wrote
Yeah, but you are dealing with quantum funkiness. There's always a catch, like with quantum entanglement, and how despite one's state affecting the other regardless of distance, you can't use it for faster than light communication, since the act of observing the state changes the state.
MurderDoneRight t1_iwhacjs wrote
Yeah, like I mentioned in my first comment I don't really know anything so you may be right too. 😉
But I don't know, there's a lot of cool discoveries being done right now anyway. I did read up on quantum entanglement too because of this years Nobel prize winner in physics who used it to prove that the universe is not "real". How crazy is that?
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