Create currents and discover gravity while exploring the theory of Lenz's Law. The experiments in this kit derive from the principal of Lenz's Law, a theory discovered in 1834. For example, when a magnet falls through the copper tube, the magnetic field surrounding the magnet is constantly changing positions. This changing of the magnetic field induces (forces) the flow of eddy currents 9circular electric currents) in the tube. The eddy currents create their own magnetic field that 'pushes' against the falling magnet and opposes (repels) the magnet's fall. The result of this magnetic repulsion is a slowly falling magnet. This demonstration is quite counter-intuitive and it appears as a fascinating magic trick. With this kit you can perform 11 experiments. Contents:

12 inch (30cm) aluminum tube

12 inch (30cm) copper tube

12 inch (30cm) clear plastic tube

five ceramic ring magnets

small Neodymium disk magnet

Neodymium magnet

black rubber bumpers

steel plug

two 2 inch (5cm) vinyl tubing

tube of paper clips

tube of steel shapes

tube of iron fillings

pencil Comes complete with the experiment instruction booklet. Warning: choking hazard Small part. Not for childred under 3 years of age

Recommended for ages 8 and older.

Weight: 1 lb 2 oz ( 0.51 kg )