Radio History

Radios

Description

A radio is a electric box with a antenna or antennas. It is something that was made by a man named Guglielmo Marconi, the radio was made in 1897. This produces messages from radio waves. (Wikipedia)

Radio

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Key People

The person who invented the radio is Guglielmo Marconi. He was 23 years old when he invented the radio. Guglielmo Marconi died July 20, 1937. (Wikipedia)

Guglielmo Marconi

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Interesting Facts

1. This interesting fact is explaining how a radio wave works. 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 electric voltage is produced. 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 television, or printed page from a teletype machine. (Encyclopedia)


2. Some people thought Nikola Tesla invented the first radio, but he didn't, it was really Guglielmo Marconi who invented the first radio. (Wikipedia)


3. Radio waves are a kind of electromagnetic waves. (George and Shirley Coulter)

History

The radio was made in 1897. Guglielmo Marconi, the inventor of the radio, died in July 20, 1937, he was 63 years old. He was born April 25, 1874. (Wikipedia)
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Sources

"Invention of the Radio." Invention of Radio-Wikipedia, the Free Encyclopedia. Wikipedia, n.d. Web. <En.m.wikipedia.org>.


Coulter, George, and Shirley Coulter. Radios. Vero Beach, Florida: Rourke Publications, 1996. Web. 20 Jan. 2015.


"Academic American Encyclopedia Q-R." Grolier Incorporated, n.d. Web. 16 Jan. 2015.