Armstrong, Edwin H(oward)
- Armstrong, Edwin H(oward)
-
born Dec. 18, 1890, New York, N.Y., U.S.
died Jan. 31/Feb. 1, 1954, New York City
U.S. inventor.
He studied at Columbia University, where he devised a feedback circuit that brought in signals with a thousandfold amplification (1912). At its highest amplification, the circuit shifted from being a receiver to being a primary generator of radio waves, and as such it is at the heart of all radio and television broadcasting. It earned him the Franklin Medal, the highest U.S. scientific honour. His 1933 invention of circuits that produced the carrier waves for frequency modulation (
FM) made high-fidelity broadcasting possible.
* * *
Universalium.
2010.
Look at other dictionaries:
Armstrong, Edwin H(oward) — (18 dic. 1890, Nueva York, N.Y., EE.UU.–31 ene./1 feb. 1954, Nueva York). Inventor estadounidense. Estudió en la Universidad de Columbia, donde diseñó un circuito retroalimentado que producía señales con una amplificación de mil veces. En su… … Enciclopedia Universal
Edwin — (as used in expressions) Julian Edwin Adderley Aldrin, Edwin Eugene, Jr. Armstrong, Edwin H(oward) Bessey, Charles E(dwin) Birkenhead, Frederick Edwin Smith, 1 conde de Booth, Edwin (Thomas) Church, Frederic Edwin Cohn, Edwin Joseph Hubble, Edwin … Enciclopedia Universal
Armstrong — Localidad cercana a Cañada de Gómez, ubicada a la vera de la ruta nacional nº 9,en la provincia de Santa Fe,Argentina. Aproximadamente tiene 25.000 habitantes y gran cantidad de industrias. * * * Armstrong, Lance Armstrong, Lance Armstrong, Louis … Enciclopedia Universal
Howard — Howard, Ebenezer Howard, Leslie ► Noble familia inglesa del s. X. A ella pertenecen los condes de Norfolk, de Suffolk, de Northampton y de Nottingham. * * * (as used in expressions) Aiken, Howard H(athaway) Armstrong, Edwin H(oward) Bearden,… … Enciclopedia Universal
