but to north pole or two south poles will repel each other. Magnetic force can overcome gravity. That’s why this magnet can hover in mid-air. Electrostatic force also attracts and repels objects.

What would happen if we didn’t have gravity? Rockets need a lot of upward force to get off the ground. Can you think of other examples where objects need to overcome gravity? You can watch this ...

In his new book "CHARGE: Why Does Gravity Rule?", theoretical physicist Frank Close explores the fundamental forces that govern our world, posing questions along the way that seek to explain how ...

where she explained how gravity acts on every cell of your body in the same way. However, this force still isn’t fully understood. It doesn’t fit into the mould of the other fundamental forces ...