Title rated 5 out of 5 stars, based on 1 ratings(1 rating)
Book, 2001
Current format, Book, 2001, , Available .
Book, 2001
Current format, Book, 2001, , Available . Offered in 0 more formats
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
From the community