Great Scientific Theories: Gravity

Why does rain fall?
Why do rivers flow to the sea?
This fascinating book looks at the history of gravity by telling the stories of the scientists who contributed to the various groundbreaking theories, such as Johannes Kepler, Isaac Newton and Albert Einstein. It looks at the historical controversies that surrounded the various theories at the time, how they were tested and what impact these theories and discoveries have had on the way in which we view the process of gravity today.