Physics:Atomichron
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Short description: 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 portable atomic clock and was a caesium standard clock. More than 50 clocks with the trademarked Atomichron name were produced.[1][2][3][4]
See also
References
- ↑ Forman, P (July 1985). "Atomichron: The atomic clock from concept to commercial product". Proceedings of the IEEE 73 (7): 1181–1204. doi:10.1109/PROC.1985.13266. ISSN 0018-9219. Archived from the original on 2007-10-21. https://web.archive.org/web/20071021044529/http://ieee-uffc.org/freqcontrol/atomichron/automichron.htm.
- ↑ "The Global Positioning System" (pdf). Archived from the original on 2010-05-20. https://web.archive.org/web/20100520121212/http://www.beyonddiscovery.org/includes/DBFile.asp?ID=84. Retrieved 2008-04-23.
- ↑ "Science Update". The Dallas Morning News. 1989-10-02.
- ↑ The Global Positioning System: The Path from Research to Human Benefit. National Academy of Sciences. 1996. pp. 7. http://books.nap.edu/openbook.php?record_id=9479&page=7.
External links
- A Brief History of the National Company, Inc
- Atomichron: The Atomic Clock from Concept to Commercial Product
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