National Network for Equitable Library Service

As night falls on a soft summer evening, neighborhood children are drawn out of their houses by the sights and sounds of the world after dark.

The dinosaur bones in Drumheller, Alberta, rest by daylight, and come out and dance when the moon rises.

Einstein's own explanation of his theory for those who do not have a mathematical background and are unfamiliar with physics.

This concise volume contains two addresses by Dr. Einstein outlining aspects of the theories.