Magnets Are Fun

Magnets, you know those things that have a North and South pole and stick to metal objects? Theres all kinds of magnets from the lowliest refrigerator magnet to the super electromagnets that can lift tons. You probably had some of those plastic coated magents as toys when you were a kid or knew someone who had some, so you know when you point two ends of a couple of magnets at each other, they stick together, but turn them around and they push each other away. I can spend hours playing with magnets. Put one under a table or desk and another on top and watch as one slides around seemimgly by itself. It looks better if you put something small like a thimble or an eraser on the one on top and watch it move around while your hand moves the one under the table. Tape a magnet to a small car and push it around with another magnet. Get a stack of circular magnets like you find in toy stores and place them over a pencil so they float on each other.
Magnets excert a force that amazes a lot of people and besides being interesting as all get out as to how they work and what you can do with them, its a great way to while away a boring afternoon.