Bleeps and Blips to Rocket Ships: Great Inventions in 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