
Zee explores one of the least understood but most interesting topics in cosmology: the nature of gravity and its place in our universe. Illustrated.

Zee begins his exploration of gravity with a toy given to Einstein on his last brithday. This toy--constructed of a heavy ball, a broomstick, and a spring--illustrates Einstein's theories on gravity in astonishingly simple terms, and Zee uses it as a departure point for his discussion...