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1 образцовый цезиевый генератор частоты
Metrology: cesium beam atomic frequency standardУниверсальный русско-английский словарь > образцовый цезиевый генератор частоты
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2 эталонный цезиевый генератор частоты
Metrology: cesium beam atomic frequency standardУниверсальный русско-английский словарь > эталонный цезиевый генератор частоты
См. также в других словарях:
atomic clock — an extremely accurate electronic clock regulated by the resonance frequency of atoms or molecules of certain substances, as cesium. [1935 40] * * * ▪ instrument type of clock that uses certain resonance frequencies of atoms (usually cesium… … Universalium
Atomic clock — Nuclear clock redirects here. For the clock as a measure for risk of catastrophic destruction, see Doomsday Clock. For a clock updated by radio signals (commonly but inaccurately called an atomic clock ), see Radio clock. For the album by Zion I … Wikipedia
NIST-F1 — NIST F1, source of the official time of the United States NIST F1 is a cesium fountain clock or atomic clock in the National Institute of Standards and Technology (NIST) in Boulder, Colorado, and serves as the United States primary time and… … Wikipedia
Time in physics — In physics, the treatment of time is a central issue. It has been treated as a question of geometry. One can measure time and treat it as a geometrical dimension, such as length, and perform mathematical operations on it. It is a scalar quantity… … Wikipedia
Essen, Louis — ▪ 1998 British physicist (b. Sept. 6, 1908, Nottingham, Nottinghamshire, Eng. d. Aug. 24, 1997, Great Bookham, Surrey, Eng.), built the cesium beam atomic clock, a device that ultimately changed the way time is measured. Atomic clocks… … Universalium
Twin paradox — In physics, the twin paradox is a thought experiment in special relativity, in which a twin makes a journey into space in a high speed rocket and returns home to find he has aged less than his identical twin who stayed on Earth. This result… … Wikipedia
quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… … Universalium
spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… … Universalium
Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr … Wikipedia
Hewlett-Packard Company — ▪ American company Introduction American manufacturer of computers, computer peripherals, and instrumentation equipment. Headquarters are in Palo Alto, California. Founding and early growth The company was founded on January 1, 1939, by… … Universalium
Timeline of luminiferous aether — The timeline of luminiferous aether begins in the late 19th century with the concept of luminiferous aether ( light bearing aether ), or ether, as a medium for electromagnetic propagation. The aether was assumed to exist for much of the 19th… … Wikipedia