The Mystery of Gravity
An exellent explanation of gravity for children ages 6 to 15.
1. Crystal Spheres and Epicycles
2. The New Astronomy
3. Galileo's Gravity
4. The Apple Must Fall
5. Gravity as Curved Space-Time
6. The Strange Resutls of Extreme Gravity
One of Benchmark's books in its series "The Story of Science." Library cover.