Flemings oscillation valves, c 1903.

UNITED KINGDOM - APRIL 10: As well as being a pioneer in the application of electricity to lighting and heating on a large scale, John Ambrose Fleming (1849-1945) invented the thermionic diode or valve. His invention was a major step forward in wireless technology as it was considerably more efficient as a radio wave detector than coherers or magnetic detectors. Valves became fundamental components in radios, as well as television sets and computers for 50 years, before being superseded by the transistor. (Photo by SSPL/Getty Images)
UNITED KINGDOM - APRIL 10: As well as being a pioneer in the application of electricity to lighting and heating on a large scale, John Ambrose Fleming (1849-1945) invented the thermionic diode or valve. His invention was a major step forward in wireless technology as it was considerably more efficient as a radio wave detector than coherers or magnetic detectors. Valves became fundamental components in radios, as well as television sets and computers for 50 years, before being superseded by the transistor. (Photo by SSPL/Getty Images)
Flemings oscillation valves, c 1903.
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Crédito:
Science & Society Picture Library / Colaborador
Editorial n.º:
90735989
Colección:
SSPL
Fecha de creación:
10 de abril de 1997
Fecha de subida:
Tipo de licencia:
Con derechos gestionados
Inf. de autorización:
No se cuenta con autorizaciones. Más información
Fuente:
SSPL
Nombre del objeto:
10305543
Tamaño máx. archivo:
3504 x 2758 px (29,67 x 23,35 cm) - 300 dpi - 2 MB