Northwestern Physics Demos                                 Go back to MAGNETISM 
DCS# 5H20.20NWU#  Ma-11Location:   8 F 1
title: Floating Bar
aka: low friction horizontal top  "revolution"

A shaped cylinder is suspended by magnetic fields so there is only a point contact.  Given the low friction, it spins for a long time.

    Are there applications for magnetic bearings?
overall set up