Title: Radio: A Form Of Communication

Essay Details

Subject: Technology
Author: Marjorie W
Date: October 16, 2014
Level: University
Grade: A
Length: 11 / 3126
No of views: 0
Essay rating: good 0, average 0, bad 0 (total score: 0)

Essay text:

Radio, on the other hand, requires no such physical connection. It relies on the radiation of energy from a transmitting antenna in the form of radio waves. These radio waves, traveling at the speed of light (300,000 km/sec; 186,000 mi/sec), carry the information. When the waves arrive at a receiving antenna, a small electrical voltage is produced...

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After this voltage has been suitably amplified, the original information contained in the radio waves is retrieved and presented in an understandable form. This form may be sound from a loudspeaker, a picture on a television, or a printed page from a teletype machine. HISTORY Early Experimenters The principles of radio had been demonstrated in the early 1800s by such scientists as Michael Faraday and Joseph Henry...

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