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File:Atomic clocks.jpg

Atomic_clocks.jpg (480 × 374 pixels, file size: 66 KB, MIME type: image/jpeg)

Description
English: NIST-F1 Cesium fountain atomic clock, serving as the US time and frequency standard, with an uncertainty of 5.10-16 (as of 2005).
Čeština: Atomové cesiové hodiny, tež nazývané cesiová fontána.
Français : L'horloge atomique à fontaine d'atomes de Césium NIST-F1. Cette horloge est l'étalon primaire de temps et de fréquence des États-Unis, avec une incertitude de 5.10-16 (en 2005).
Date 11 December 2007 (original upload date)
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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  • 2007-12-11 16:04 Dakik 480×374×8 (67894 bytes) {{Popis souboru | popis = | zdroj = | datum = | autor = | povolení = | jiné verze = }}

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current01:14, 19 June 2008Thumbnail for version as of 01:14, 19 June 2008480 × 374 (66 KB)File Upload Bot (Magnus Manske) {{BotMoveToCommons|cs.wikipedia}} {{Information |Description={{cs|== Licence ==}} |Source=Transferred from [http://cs.wikipedia.org cs.wikipedia]; transfered to Commons by User:Sevela.p using [http://tools.wikimedia.de/~magnus/commonshelper.php Commo

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