Bleeps and Blips to Rocket Ships Great Inventions in Communications
, by Hegedus, Alannah; Rainey, Kaitlin; Slavin, Bill- ISBN: 9780887764523 | 0887764525
- Cover: Paperback
- Copyright: 3/14/2001
Our fast-paced world of fax machines, digital cameras, and cell phones is possible because of the work of inventors who paved the way for modern communications. Meet: Reginald Fessenden, who thought of a continuous wireless signal when he noted the ripples resulting from a rock he tossed in a lake; Alexander Graham Bell, who made his famous call "Mr. Watson, come here! I want you!" because he had spilled acid onto his trousers; William Stephenson, inventor of the wirephoto, who was a spy during the Second World War. From newsprint to fiber optics, discover ten great inventions in this fascinating book, and a great resource for science projects and science fairs: Make your own paper Create your own halftone image Make your own pinhole camera Make a telegraph Use Morse code Make a light fountain