Science Behind The Radio Research Paper

Science Behind the Radio

The radio was invented in 1893. It has made a big impact on society. The radio allows for society to stay in constant communications on special events going on around the world. There is much controversy over who invented the radio. In 1901 An electrical pioneer name Nikola Tesla went to the Supreme Court and claimed that he had developed a wireless telegraph before Marconi. Marconi's four radio patents were invalidated. People believe that Guglielmo Marconi was the first to invent the radio because he received the first wireless telegraphy patent, but other people believe Nikolai Tesla was the first to invent the radio. People believe Tesla was the first because he demonstrated a wireless radio before Marconi. Marconi

Hi operator contacted RMS Carpathian to save 700 passengers that had survived the Titanic. In the later years of Marconi he improved his inventions, and experimented on short wave broadcasts. Marconi married an Irish artist and they had four children. Marconi died in 1937 in Rome from a heart attack. Some radio stations honor him on the radio by having seven minutes of silence.

A radio wave is the first step to how a radio works. "A radio wave is an electromagnetic wave that is used for sending signals through the air without using wires." (Merriam-Webster. Merriam-Webster, n.d. Web. 01 Nov. 2016.) When radio station receives radio waves the station then encodes information from the radio waves. The information that was encoded is then set to a certain frequency, so that antennas can pick up on the frequency that is being signaled. The signal is sent to the radio, and the radio then decodes the

This was not a great method to produce radios signals because it was inefficient and noisy. The sparks coils would make sparks continuously, and because of the high voltage it would make the sparks grow bigger in size. This then allows for the transmitter to travel farther. After a couple of years went by the alternator-transmitters became out of date and were no longer used. Today using the spark coil method would be illegal because it spams radio spectrum. In 1904-1928 Danish and Valdemar Poulsen invented the arc-transmitter which generates continuous radio wave signals. Many audio transmissions used the arc-transmitter rather than the alternator-transmitters because it was less