- Dec 24, 2004
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My physics teacher showed us a device that consisted of a rod that could produce an electromagnetic field, and an electromagnetic base to go with it. When arranged the right way, the rod would be suspended above the base. On one side, there was a panel on the base, which allowed one side of the rod to stabilize, and allowed it to be spun in place. Since the friction is so low the thing would most likely spin for hours... does anyone have any idea what I'm talking about and where I could get one?