File:Deep Space Atomic Clock engineering sample.jpg
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Summary[edit]
DescriptionDeep Space Atomic Clock engineering sample.jpg |
English: A laboratory representation of the Deep Space Atomic Clock, with a quarter alongside the unit for size comparison, and without the electronics required for operation. It also contains laboratory components, including a metal frame, instead of flight hardware. At just under 0.2 cubic feet and weighing about 7 pounds, the clock is smaller, lighter and more stable than any other atomic clock flown in space. |
Source | Deep Space Atomic Clock engineering prototype.jpg |
Author | NASA |
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 file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:00, 22 April 2019 | 740 × 660 (133 KB) | PM3 (talk | contribs) | {{Information |description ={{en|1=A laboratory representation of the Deep Space Atomic Clock, with a quarter alongside the unit for size comparison, and without the electronics required for operation. It also contains laboratory components, including a metal frame, instead of flight hardware. At just under 0.2 cubic feet and weighing about 7 pounds, the clock is smaller, lighter and more stable than any other atomic clock flown in space.}} |date = |source =Deep Space Atomic... |
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