the egg of Tesla

https://www.youtube.com/watch?v=iS9pf3gtB14
hello guys
can someone explain to me how it works ??
Thanks.

Hi,

That looks like a really awesome gizmo, Telsa certainly was a clever man. I have seen a desk-toy that is very similar, a spinning top. I stared at it for hours thinking how it could work!!

Basically there is a rotating magnetic field underneath the bowl. This field is created very much like a brushless motor. This link here explains it well...

https://www.tpub.com/neets/book5/18a.htm

Once again, it is very cool!!

Tom

Thanks Tom !!
this link is very informative