3 ms·
Right. Everyone should just read up on Earnshaw's theorem to know what all the boundary conditions are. https://en.wikipedia.org/wiki/Levitron https://en.wiki
by floxy 3y ago
Right. Everyone should just read up on Earnshaw's theorem to know what all the boundary conditions are.
https://en.wikipedia.org/wiki/Levitron https://en.wikipedia.org/wiki/Levitron
- jacquesm 3y agoI wonder how long you could get one of those to spin in a vacuum. Halbach arrays with compensating coils have been proposed for some interesting applications, such as low loss flywheels for electrical storage. I don't know if that ever got commercialized but I do recall that some prototypes were made by a US company. I can't find a reference to it though.
- floxy 3y ago>I wonder how long you could get one of those to spin in a vacuum. Not too much longer apparently... https://www.youtube.com/watch?v=mn7IedCgva0 https://www.youtube.com/watch?v=mn7IedCgva0