- light-house triode
- маячковый триод
English-Russian dictionary of telecommunications. 2015.
English-Russian dictionary of telecommunications. 2015.
Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… … Wikipedia
Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism … Wikipedia
motion picture, history of the — Introduction history of the medium from the 19th century to the present. Early years, 1830–1910 Origins The illusion of motion pictures is based on the optical phenomena known as persistence of vision and the phi phenomenon. The first … Universalium
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Tube socket — Left to right: octal (top and bottom view), loctal, and miniature (top and side view) sockets. An early transistor socket and an IC socket are included for comparison. Tube sockets are electrical sockets into which vacuum tubes (also known as… … Wikipedia
electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… … Universalium
History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… … Wikipedia
J. R. R. Tolkien — Infobox Writer name = J. R. R. Tolkien birthname = John Ronald Reuel Tolkien imagesize =225px caption = Tolkien in 1972 birthdate = birth date|1892|1|3|df=y birthplace = Bloemfontein, Orange Free State deathdate = 2 September 1973 (aged 81)… … Wikipedia
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20th century — For other uses, see 20th century (disambiguation). Millennium: 2nd millennium Centuries: 19th century · 20th century · 21st century Decades: 1900s 1910s … Wikipedia