I’ve linked to videos showing the effect before, but it’s still cool. I notice he spins the magnet — that gives an even faster change to the magnetic field, and enhances the braking beyond what simply dropping it would do. I looked at the effect with a coil, by measuring the induced voltage some time back.
swans on tea
Just another SFN Blogs site
1) Neodymium supermagnets are trippy (and credit card-erasing). Could one do something macroscopically untoward given the Aharonov–Casher effect?
2) After that video there was a choice of another video, a demo of a homopolar motor (www.youtube.com/watch?v=KBZTXdf7c-o). Given that nothing is connected to anything else but through good dielectrics (air, glass), sonofagun.