You may remember the Levitron from years past, which floated a small spinning top in mid air. You had to spin the top just right, and make sure to release it in the exact position above the base in order to get it to work. But when it worked, it was an impressive sight for the time. But now technology has revisited that product, and so we have the Levitron Revolution.
The Original Levitron
The Levitron Revolution uses 4 LEDs on the base to help you position the magnetic floating disc. This is much easier to use than the original, and it can even float an object while being positioned sideways. Once you have everything in position, the disc can hold and float up to 12 ounces. To me, this is a great way to show off a prized collectable, and it is just downright fun. If you like that kind of gadget, of course.
Levitron
Levitron is a brand of levitating toys and gifts in science and educational markets marketed by Creative Gifts Inc. and Fascination Toys & Gifts. The Levitron top device is a commercial toy that displays the phenomenon known as spin stabilized magnetic levitation. This method, with moving permanent magnets, is quite distinct from other versions which use changing electromagnetic fields, levitating various items such as a rotating world globe, model space shuttle or VW Beetle, and picture frame. 750,000 units were sold from 1994 through 1999
source:wikipedia
