
| | | | Guglielmo Marconi: The Scientists and Inventors Series (Dramatized) Author: Geoffrey Orme Format: Audio Download Audio Length: 1 hour and 1 min. Rating:  Retail Price: $9.43 Price: $7.25 You save $2.18 (23%) 
Publisher's Summary: Marconi didn't invent radio waves, that credit goes to Heinrich Hertz, for whom the units hertz and megahertz are named. Hertz had discovered and first produced radio waves in 1888. But it was Marconi who took the Hertz discovery and developed what the world now knows as radio. In 1894 Marconi began experimenting at his family's home near Bologna. In 1899, he sent a signal 31 miles across the English Channel to France. Most scientists of the day were sure the curvature of the earth would prevent sending a signal much farther than 200 miles; so when, in 1901, Marconi was able to transmit his wireless signals across the Atlantic, the scientific establishment, and indeed, the whole world was stunned. And so began the revolution in communication that led not only to radio, but eventually to television and the mobile phone. In 1909, Marconi shared the Nobel Prize for Physics with his colleague Karl Ferdinand Brown. |