DEMO: Eddy Currents and the Rolling Magnet

Here we watch a cylindrical magnet s l o w l y roll down a copper plate, with and without liquid nitrogen (because that's a crowd-pleaser).

[roshnsahu]

I don't understand why there is lesser number of views.
The content is so good. It's amazing to pick up few stuffs when you see it with your own eyes.

[chadgtr]

what is the limit on the size of surface ? is this applicable on the surface of mars?

[sweet_starshine]

This is really cool! What happens if you heat up the block? Does it roll faster?