HEINRICH RUDOLPH HERTZ
( 1857 - 1894)
Hertz was a German Scientist. He opened the way for the development of radio. Television and RADAR with his discovery of electromagnetic waves.
Hertz was born on 22 February 1857 at Hamberg into a rich family. He studied architecture and mechanical engeneering. But he developed interest in science and research. He worked under Herman Won Helm Holt in Berlin university. He got his degree in 1880. He went to Keel as a teacher where he studied electro magnetism. Manwell had opined that electric and magnetic waves can be transmitted as light waves. Hertz desired to prove this statement. He made transmitters to transmit electro magnetic waves and receivers to receive them. This has helped today’s Radio, TV and Radar.
Hertz used a rapidly oscillating electric spark to produce waves of ultra high frequency. He showed that these waves caused similar electrical oscillations in a distant wire loop. He also showed that light waves and electromagnetic waves were identical thus proving James C.Maxwell’s theoretical conclusions.
Hertz determined the wave length. He confirmed that the speed of electro magnetic waves is equal to the speed of the light waves. It is 300 million metres.
Hertz is the SI unit of frequency of a periodic phenomenon. It is the number of repetitions of a periodic phenomenon per second. It is named after the scientist Heinrich Hertz. The symbol is Hz. Eg: the frequency of aleternating current used in India is 50 Hz.
Hertz was a German Scientist. He opened the way for the development of radio. Television and RADAR with his discovery of electromagnetic waves.
Hertz was born on 22 February 1857 at Hamberg into a rich family. He studied architecture and mechanical engeneering. But he developed interest in science and research. He worked under Herman Won Helm Holt in Berlin university. He got his degree in 1880. He went to Keel as a teacher where he studied electro magnetism. Manwell had opined that electric and magnetic waves can be transmitted as light waves. Hertz desired to prove this statement. He made transmitters to transmit electro magnetic waves and receivers to receive them. This has helped today’s Radio, TV and Radar.
Hertz used a rapidly oscillating electric spark to produce waves of ultra high frequency. He showed that these waves caused similar electrical oscillations in a distant wire loop. He also showed that light waves and electromagnetic waves were identical thus proving James C.Maxwell’s theoretical conclusions.
Hertz determined the wave length. He confirmed that the speed of electro magnetic waves is equal to the speed of the light waves. It is 300 million metres.
Hertz is the SI unit of frequency of a periodic phenomenon. It is the number of repetitions of a periodic phenomenon per second. It is named after the scientist Heinrich Hertz. The symbol is Hz. Eg: the frequency of aleternating current used in India is 50 Hz.
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