Posted by grim (206.162.192.40) on January 06, 2003 at 15:29:50:
In Reply to: How can I make something levitate? posted by Chris Skidmore on January 03, 2003 at 11:58:49:
I think you can find what you're looking for at www.geocities.com/Area51/Shire/3075/maglev.html. Lots of info there, plus a circuit using optos and an switched electromagnet to achieve magnetic levitation without sticking to the top magnet, as in the floating objects you've seen.
Good luck!
regards,
grim