Heinrich Hertz

230px-Heinrich_Rudolf_HertzHeinrich Rudolf Hertz (German; 22 February 1857 – 1 January 1894) Physicist and scientist. He was the first to demonstrate the existence of electromagnetic radiation by building an apparatus to produce UHF (ultra high frequency) radio waves. Hertz helped establish the photoelectric effect (which was later explained by others) when he noticed that a charged object loses its charge more readily when illuminated by ultraviolet light. He began experimenting with the transmission and reception of electromagnetic waves using a spark gap transmitter, and did much to explore the propagation and behavior of these waves both through the air and through different types of materials. He also developed the dipole antenna to transmit these radio waves. The hertz, or Hz., is named after him, and is a unit of electrical and electromagnetic frequency. Unlike Marconi, Hertz had little vision or understanding for the practical use of these radio waves. He once stated; “It’s of no use whatsoever[…]” when speaking of his discoveries. These discoveries would later be more fully understood and exploited however, by others and become part of the new “wireless age”. Read more…

Bookmark the permalink.

Comments are closed