Levitating rod magnet

The rod magnet levitates thanks to the strong repulsion of equal poles

Author: Oscar Bos, Den Haag, Netherlands

Online since: 07/04/2010, Number of visits: 344890

This project is about the strong repulsion of equal magnetic poles. You need:

Adhesive tape
Two straight pieces of wood
Rod magnets: Technically, all types will do, but the longer the rod magnet the more the equal poles repel each other. In this project we used 10 S-04-25-N rod magnets.

The assembly is simple:

1. Divide the 10 rod magnets into three pieces: one with four magnets and two with three magnets.

2. Identify north and south pole on each piece (see FAQ north pole).

3. Mark north and south pole of the three pieces with coloured adhesive tape.

4. Use adhesive tape to glue the two shorter pieces on a piece of wood.

5. Place the second piece of wood perpendicular to the other.

6. Carefully prop the long magnetic rod against the perpendicular wood and then let go.

Result: The long rod levitates above the others!

The blue marks symbolise the north or south poles of the assembled rods

Articles used

Rod magnet Ø 4 mm, height 25 mm, holds approx. 670 g, neodymium, N42, nickel-plated

Available: 8 140 pcs.

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