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Tuesday, September 23, 2008

Who adapted radio waves for use in communication?


Who adapted radio waves for use in communication?

The invention of both the telephone and the telegraph in the nineteenth century marked significant advances in communication Technology. However, both these inventions needed the use of wires to connect the people using them. Without wires, the technology could not work.

The discovery of radio waves by the German scientist, Heinrich Hertz was a very important landmark. Radio waves are electromagnetic waves that have a long wavelength. These waves can be longer than a football field of as short as a football, and cannot be seen or heard by humans.

It was the Italian physicist Heinrich Marconi who adapted radio waves for communication. In 1895, he succeeded in transmitting a wireless electronic message over a distance of 2.4 kilometres. Communication without wires had arrived!

Radio waves transmit music, conversations, pictures and data visibly through the air, often over millions of miles-it happens every day in thousands of different ways! They have totally changed society. Whether we are talking about a cell phone, a cordless phone or any one of the thousands of other wireless technologies, all of them use radio waves to communicate

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