Why do things fall? They don't drop from down to up, or from left to right. If an object is not supported it will surely fall until it hits the ground. The reason is, of course, gravity: the pull of the Earth, the attractive force. But what if that attractive force didn't actually exist? If there's no pull, what causes objects to fall? The answer to that question is an amazing one indeed. It's time to unlock the secrets of gravity...in Gravity Revealed!