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الأحد، 26 فبراير 2012

Heinrich Rudolf Hertz

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The way for the development of radio, television, and radar was opened by the German
physicist Heinrich Rudolf Hertz with his discovery in 1886 – 1888 of electromagnetic waves.
His work confirmed the 1864 theory of the great English physicist James Clerk Maxwell that
such waves existed.
Hertz was born in Hamburg, the oldest of five children in a prominent and prosperous
family. After graduation from high school he spent a year with an engineering firm in
Frankfurt, a year of volunteer military service in Berlin, and then a year at the University of
Munich. Finally he entered the University of Berlin as a student of the great physicist
Hermann von Helmholtz. Later Hertz received his doctorate and was a professor at
Karlsruhe when he began his quest for electromagnetic waves. It was there that he met
Elizabeth Doll, the daughter of one of his fellow professors, and after a 3-month courtship
they were married. Only a few years after his famous discovery, Hertz died on New Year's
Day in 1894 of a bone malignancy at the young age of 37. His researches ushered in the
modern communication age, and in his honor the unit of frequency (cycles per second) was
named the hertz.
(Source: D. Johnson, J. Johnson and J. Hilborn, Electric Circuit Analysis, Prentice-Hall, 1989)

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