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First commercial atomic clock
The Atomichron was the world's first commercial atomic clock, built by the National Company, Inc. of Malden, Massachusetts. It was also the first self-contained
Atomichron
by 1991, after continuing difficulties, the company ceased trading. Atomichron Collins Radio E.F. Johnson Hallicrafters Hammarlund R.L. Drake Vintage
National_Radio_Company
Time standard based on atomic clocks
Naval Observatory began the A.1 scale on 13 September 1956, using an Atomichron commercial atomic clock, followed by the NBS-A scale at the National Bureau
International_Atomic_Time
Clock that monitors the resonant frequency of atoms
Radio Company sold more than 50 units of the first atomic clock, the Atomichron. In 1964, engineers at Hewlett-Packard released the 5060 rack-mounted
Atomic_clock
Laser-cooled atoms in flight
News. 15 (12): 31–32. doi:10.1364/ON.15.12.000031. Forman, P (1985). "Atomichron®: The atomic clock from concept to commercial product". Proceedings of
Atomic_fountain
American nuclear physicist (1905–1986)
Cornell University Press. pp. 125–127, 138–139. ISBN 978-1-5017-4516-4. "Atomichron, Cesium-Beam Atomic Clock, Jerrold Zacharias and National Company, 1953–1956"
Jerrold_R._Zacharias
scales Atomic spacing Atomic spectral line Atomic theory Atomic units Atomichron Atomics International Atomism Atomistix Virtual NanoLab Attenuation Attenuation
Index_of_physics_articles_(A)
ATOMICHRON
ATOMICHRON
ATOMICHRON
ATOMICHRON
Girl/Female
Australian, Christian, French, Irish, Latin
Woman of Honour
Boy/Male
Hindu, Indian
To Grow
Girl/Female
Muslim/Islamic
Daughter of az-Zubayr and a female companion (R.A) she said to the Prophet (S.A.W) that she intended to perform the pilgrimage but was suffering from pain. The Prophet (S.A.W) instructed her to assume
Male
English
Variant spelling of English unisex Courtney, KOURTNEY means "short nose."
Boy/Male
Indian, Punjabi, Sikh
Glorious Victory
Boy/Male
British, English
Fearsome
Boy/Male
Indian, Sanskrit
Axis; Yoke
Girl/Female
Tamil
Chanasya | சநாஸà¯à®¯à®¾
Delighting, Pleasant, Wonderful
Girl/Female
Hebrew
Goat.
Girl/Female
Indian
ATOMICHRON
ATOMICHRON
ATOMICHRON
ATOMICHRON
ATOMICHRON