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The history of gravitacion

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The Ancients
Gravity is a force of attraction between all matter. It is the weakest known force in nature, but it still manages to hold galaxies like the one shown in this image and the solar system together. The ancient Greek philosophers thought that the motions of the stars and planets were totally unrelated to events on the earth. The heavens were the realm of the gods, where everything existed in perfection. One of these philosophers was called Aristotle. He thought that that the stars and planets followed a so called "natural" motion, and that the force that made them move made contact between them.
This force is the force of gravity and today we know that it works without actually touching objects but the ideas of the ancient Greeks survived right up until the 16 th century when our understanding of gravity was changed dramatically by scientists like Galileo and Newton.

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