[( Guglielmo Marconi and Radio Waves )] [by: Susan Zannos] [Dec-2005]

by Susan Zannos

Guglielmo Marconi was a young man fascinated with the recently discovered phenomenon of electricity. Telegraph wires were already being used to send messages with electricity—there was even a cable under the Atlantic Ocean making communication between continents possible. But when Marconi learned about the electromagnetic waves scientists had discovered, he thought that they could be used to send messages without wires. In 1894, when he was 20 years old, Marconi began his experiments in sending first a few feet, next a few yards, then over a mile, and at last across the Atlantic Ocean. Marconi's wireless telegraphy made it possible, for the first time, for ships at sea to communicate with the land and with each other. Marconi's work provided the foundation for the amazing developments in electronic technology that occurred in the 20th century—radio, television, radar, sonar, microwave ovens—and are still occurring at dizzying speed.

Hardcover

First published September 1, 2004

Reviews

[Laura Driskell · Rating 3 out of 5]

Book includes very few pictures but has great sub-sections that break down the book into smaller parts that allows reader to find more information on a certain question or fact the student would want to know on this inventor. Does also include sections called “FYInfo” that go beyond the timeline and talk about a certain subject for example, Electromagnetic Waves.