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Record 34 of 16353
Primary Atomic Clock Reference System
NIX Online Source: Click to View Photo/Image
Abstract: An artist's concept of the Primary Atomic Clock Reference System (PARCS) plarned to fly on the International Space Station (ISS). PARCS will make even more accurate atomic time available to everyone, from physicists testing Einstein's Theory of Relativity, to hikers using the Global Positioning System to find their way. In ground-based atomic clocks, lasers are used to cool and nearly stop atoms of cesium whose vibrations are used as the time base. The microgravity of space will allow the atoms to be suspended in the clock rather than circulated in an atomic fountain, as required on Earth. PARCS is being developed by the Jet Propulsion Laboratory with principal investigators at the National Institutes of Standards and Technology and the University of Colorado, Boulder. See also No. 0100120.
Publication Date: Jan 24, 2001
NIX (Document) ID:
MSFC-0103191
(Acquired Oct 12, 2007)
Document Type: Photograph
Publication Information: Marshall Image Exchange (MiX) - NASA MSFC
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