Traces the history of medicine in North America, from the remedies used by native peoples to the medical advances and health trends of the twentieth century.
Looks at the world before the invention of the telephone; examines the life of Alexander Graham Bell, discussing how he came to invent the telephone; and considers how the world was changed by the invention, and how it may influence the future.
Contains photographs and text that explore the invention of the lightbulb, looking at the world before the invention, discussing the life of inventor Thomas Alva Edison and how he came upon the discovery; and considering how the world was changed by the introduction of an inexpensive source of artifical light.
Describes Samuel Morse's career as a painter and inventor, and how his development of the Morse's code laid the groundwork for modern telecommunications.
Recounts the success stories of entrepreneurs who were able to found profitable companies or make lucrative developments through a combination of imagination and luck.
Text and numerous detailed illustrations introduce and explain the scientific principles and workings of hundreds of machines including a lawn sprinkler, pneumatic drill, electric guitar, and a smoke detector.
