Board Thread:General Discussion/@comment-4830106-20130809183159/@comment-7497475-20130825024338

Just so you know, when you pass a magnet over a pin, the magent is being drawn to the pin as well as the pin being drawn to the magnet. However, the momentum each object receives is dependant on its mass, your hand holding the magnet shows no change because it has a much greater mass, but the small amount transferred to the pin shows a more drastic change.