Super-speed always keeps the Man of Steel one step ahead of his enemies. But what is speed? And can anyone or anything in our world move as fast as Superman? Get ready to find out with the help of the World s Greatest Hero. You ll be amazed by how much you can learn about the science of speed.
Sir Isaac Newton formulated the laws of universal gravitation and the three laws of motion. These explain how forces act on matter, and on how matter responds to forces. This leads to an understanding of how things move.