Rickard, Graham

Explains how the Sun, which is the ultimate source of all energy on earth, can be used to provide electricity and power.

Describes the resurgence of water power, one of the oldest forms of alternative energy, and ways of using water as energy.

Discusses the mining of diamonds and their processing for industrial use or as jewelry.

A simple history of Norman castles describing their origins, how they were built, the defense of the castles, and daily life within the castle walls.

Gives descriptions of and an explanation for volcanoes, a history of some famous volcanoes with stories about them, and information on nature's warnings of an eruption and ways to protect oneself.