File:Usno-mc.jpg

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Usno-mc.jpg ‎(600 × 357 pixels, file size: 36 KB, MIME type: image/jpeg)

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Description
English: US Naval Observatory's (USNO) Master Clock Ensemble, Washington D.C., made up of a large number of Symmetricom 5071A cesium beam clocks (rack in background). This provides the time standard for the US military. The large black object in the foreground is a Symmetricom (formerly Sigma-Tau) MHM-2010 active hydrogen maser.
Date 20 December 2008 (original upload date)
Source http://tycho.usno.navy.mil/gif/clockvaults.jpg
Author US Naval Observatory
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(Reusing this file)		 Per source's Security & Privacy Policy: "All information on this site is public domain and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested."


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Public domain
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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current22:25, 20 December 2008Thumbnail for version as of 22:25, 20 December 2008600 × 357 (36 KB)Coenen (talk | contribs){{Information |Description={{en|1=USNO Master Clock and Clock Ensemble, Washington D.C.}} |Source=http://tycho.usno.navy.mil/gif/clockvaults.jpg |Author=US Naval Observatory |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full}}-->

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