High School How to use magnets in levitation?

[woodturner]

How did you find PF?: google search

I wish to find out if its possible to float a wooden lid over a box using magnets. without using electric power source,if so how?

 

[.Scott]

It is possible - but tricky.

I would try lining the rim of the box with north-up facing magnets.
Then I would line the edge of the lid with north-down facing magnets.
The lid magnets should outline a slightly smaller area than the rim magnets - so when the lid is on, it is sitting in a shallow magnetic bowl. That way, gravity will assist in keeping the lid horizontally positioned.

The problem will be that the repulsive force keeping the lid floating can be readily disrupted by side forces created when everything isn't aligned well.

 

[Dale]

If I recall correctly you have to make the lid circular and spin it.

 

[A.T.]

If I recall correctly you have to make the lid circular and spin it.

Right:
https://en.wikipedia.org/wiki/Magnetic_levitation#Stability