Dunn, Andrew

Examines the life and accomplishments of the speech teacher whose study of sound and the human voice led to his invention of the telephone.

Explains the scientific principles behind electricity, discussing such aspects as static, circuits, batteries, and generators.

An introduction to wheels and how they are used in machines.

Describes simples machines which utilize the principle of levers to move heavy objects, cut material, and make music.

A biography of the Polish-born scientist, focusing on her struggle to get an education, her discovery of radium and radiation, her Nobel prizes, and the marriage to her collaborator, Pierre Curie.