[Andrey Mikhalchuk] built his own magnetic levitation device and you can too… if you have the patience. He’s not using electromagnets, like the Arduino levitator or the floating globe. Instead, a pair ...

First Experiments with Magnetism (Reflections on Learning, 24.99) is the perfect set for children to use to begin magnetic exploration. It contains four wands, 20 magnetic marbles, two plastic-cased ...