File:NIST Second Quantum Logic Clock Based on Aluminum Ion is Now Worlds Most Precise Clock (5941058252).jpg
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Summary
[edit]DescriptionNIST Second Quantum Logic Clock Based on Aluminum Ion is Now Worlds Most Precise Clock (5941058252).jpg |
The ion trap where the main action takes place in the NIST aluminum ion clock. The aluminum ion and partner magnesium ion sit in the slit running down the center of the device between the electrodes. Credit: J. Koelemeij/NIST Disclaimer: Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST. Use of NIST Information: These World Wide Web pages are provided as a public service by the National Institute of Standards and Technology (NIST). With the exception of material marked as copyrighted, information presented on these pages is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credits is requested. |
Date | |
Source | NIST Second Quantum Logic Clock Based on Aluminum Ion is Now Worlds Most Precise Clock |
Author | National Institute of Standards and Technology |
This image has currency in it to indicate scale.
Using coins for scale is discouraged as it will require people unfamiliar with them to look up the dimensions or guess, both of which defeat the purpose of the object in the first place. Coins can also reinforce a geographical bias, and some coins' designs are copyrighted. Ideally, a photograph should include a ruler with the subject (example) or an added scale marking. SI ("metric") units are the most commonly used worldwide (see meter and centimeter). Images with coins to indicate scaleCommon coin diameters for reference:
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Licensing
[edit]Public domainPublic domainfalsefalse |
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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This image was originally posted to Flickr by National Institute of Standards and Technology at https://flickr.com/photos/63059536@N06/5941058252. It was reviewed on 7 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the United States Government Work. |
7 September 2016
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:11, 7 September 2016 | 1,424 × 1,200 (856 KB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
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Date and time of data generation | 04:11, 1 June 2005 |
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File change date and time | 11:21, 4 February 2010 |
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Date and time of digitizing | 04:11, 1 June 2005 |
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Date metadata was last modified | 06:21, 4 February 2010 |