Atomichron

Atomichron

The Atomichron was the worlds 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.cite journal|last = Forman|first = P|date = July 1985|title = Atomichron®: The atomic clock from concept to commercial product|journal = Proceedings of the IEEE|volume = 73|issue = 7|pages = 1181- 1204|issn = 0018-9219|url = http://www.ieee-uffc.org/freqcontrol/atomichron/automichron.htm] cite web|title=The Global Positioning System|url=http://www.beyonddiscovery.org/content/view.pdf.asp?a=458|accessdate=2008-04-23] cite news|title=Science Update|work=The Dallas Morning News|date=1989-10-02] cite book|title=The Global Positioning System: The Path From Research to Human Benefit|publisher=National Academy of Sciences|date=1996|pages=7|url=http://books.nap.edu/openbook.php?record_id=9479&page=7]

References

External links

* [http://www.qsl.net/jms/bio_rem/bhnc.html A Brief History of the National Company, Inc]


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • 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

  • National Radio Company — The National Radio Company, headquartered in Malden, Massachusetts, USA was an American manufacturer of radio equipment from 1914 to 1991. Contents 1 History 2 See also 3 References 4 External links …   Wikipedia

  • 3 октября — ← октябрь → Пн Вт Ср Чт Пт Сб Вс 1 2 3 4 5 6 7 …   Википедия

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”