How did we find out ... series

Presents a history of fire, considers wood as a fuel, and discusses the formation of coal and the history of its use as a fuel.

Discusses the types, conservation, possible sources, and uses of energy. Includes material about contributors to the study of energy.

Discusses the features of a volcano, the causes of eruptions, and the locations of active volcanoes on earth and elsewhere in our solar system.

Traces the history of the scientific discovery of "atmosphere" and its properties.

Discusses the concept of atoms and evidence of their existence accumulated since the time of the Greeks.

An account of astronomers' observations over the years leading to the discovery of Neptune's existence.

Discusses why scientists believe in the existence of black holes, what they are, how they are formed, and how they are detected.

Discusses the history of the development of superconductive materials and explores the problem of finding materials that are superconductive at higher temperatures.

Traces the history of mankind's venture into outer space from the first attempts at flight to the sending of human beings to the moon.

Provides information about lasers and how they work, and discusses their many uses.