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Title: GPS; Internet
Description: The Sistema Interamericano de Metrologia (SIM) time and frequency network spans a large geographical area, connecting Canada, the United States, Mexico, Panama, and Brazil. The baseline from the National Institute of Standards and Technology to the Brazilian national metrology institute is 9500 km.

*PHY, metrology, GPS

See also http://www.nist.gov/public_affairs/techbeat/tb2007_0119.htm#time.
Subjects (names):
Topics/Categories: Metrology, Basic Units--Length
Type: Graphic/illustration
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit NIST
AV Number: 07PHY002
Date Created: January 19, 2007
Date Entered: 1/19/2007

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