What did Newton understand that was such a revolution? Can someone just... explain gravity to me? Let's start with a ...

Why Does Gravity Rule? By Frank Close — $21.99 on Amazon If you enjoyed this extract, the rest of the book builds on this brief history of magnetism and delves ever deeper into the subatomic ...

Magnetic force can overcome gravity. That’s why this magnet can hover in mid-air. Electrostatic force also attracts and repels objects. Rubbing the balloon on another surface creates a small ...

"But because these materials have a net magnetism, that information is also easy to lose by wiping a magnet over it." Related: 'A force more powerful than gravity within the Earth': How magnetism ...