Neodymium Magnets
Levitation by Repelling Forces

Opposite poles attract, like poles repel


The Neos embedded in the base are 1/2" by 1/2" by 1/8" thick blocks. The floating NIBs are 1/2" od by 1/8" id disks 1/8" thick mounted on a 1/8" fiber carbon rod. All north poles face the camera.

Levitation by Repulsion NIBs on a Carbon Rod


The "Track" is made from twenty two 1/2" cubes. there are ten 5/8" dia by 1/8" thick disks on the bottom of the platform. All hardware is brass. This was a real pain to build. The NIBs were constantly spinning and jumping together as I was building it. I ended up re-constructing it using 1/2" by 2" by 1/8" thick blocks glued down with Super Glue.

Much Neater. Each 2" by 1/2" by 1/8" block has a Pull Force of 81 lbs with a surface field of 3,100 Gauss. This is a hell of a lot of force. These magnets are awful easy to break. When they do break, however, you generally have a couple of decent size pieces.

 

Earnshaw's theorem states that there is no possible static configuration of magnets which can stably levitate an object against gravity, even when the magnetic forces are stronger than the gravitational forces.