A magnet can attract or repel objects even before they ... Not all forces need things to touch each other to make something happen. Some objects experience forces from things that are not touching ...

Metals are the only substances that are magnetic. But some metals are magnetic and some are not. The most common magnetic metal is iron. You don't see too many objects made of pure iron but you do see ...

Mosquitoes can smell their dinner from an impressive distance of up to 50 meters. One of the things they're drawn ... You just might be a mosquito magnet.