3 ms·
I'll get this out of the way first: I'm a couch scientist (even that is probably stretching it). That said, from the video it mentions the superconductor was a
by fooqux 3y ago
I'll get this out of the way first: I'm a couch scientist (even that is probably stretching it).
That said, from the video it mentions the superconductor was applied as a film over copper. But wouldn't plain copper also exhibit this effect due to eddy currents? I fail to see how the (supposedly) thin film is affecting the plate in this experiment. I'm probably missing something and I hope someone can enlighten me.
- tkanarsky 3y agoIn a normal conducting material eddy currents dissipate relatively quickly. The shard of material in the magnet video appears to be floating quite stably for dozens of seconds, which implies that eddy currents are not being dissipated. I'm personally excited, I think it's the real deal but with some limits on maximum field strength and current