I've always wanted to try this so I ordered some Bismuth and cast it into a couple of coin shapes and now I can get nearly 1.5mm stable levitation, it can be improved a bit if I get a more powerful small magnet and it's a little higher if I put the bismuth cylinders above and below the magnet, but doesn't look as good.
It's explained here:
http://scitoys.com/scitoys/scitoys/magnets/suspension.html
The little magnet is 3mm high and 3mm diameter.
It's explained here:
http://scitoys.com/scitoys/scitoys/magnets/suspension.html
The little magnet is 3mm high and 3mm diameter.
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