Leon, George deLucenay

A history of electricity over the past 2500 years, with twenty safe and simple experiments demonstrating some of the most vital discoveries.

Explores current and future sources of power and energy.

Instructions for a variety of projects illustrating the principles of electronics.

Examines the voyages of explorers who reached the shores of North America before Columbus. Discusses Eric the Red, Leif Ericsson, the Norse settlements, and ancient visitors to South and Latin America.