Not every metal is attracted to a magnet. If you have a magnet, try seeing what objects it will attract or repel. Iron fillings reveal a magnet's magnetic field. You can see a magnet's magnetic ...

Each magnet has a clamping force of 300 kgs and when the poles are "like" they repel with enough force to make a man "levitate." The magnets can be bought here but they are very strong so should ...