File:Evaporative Cooling (8363877983).jpg
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Summary
[edit]DescriptionEvaporative Cooling (8363877983).jpg |
JILA researchers developed a new magnetic trap and a new technique to achieve "evaporative cooling" of hydroxyl molecules (one hydrogen atom bonded to one oxygen atom). A microwave pulse at a specific frequency converts hot molecules inside the trap to a slightly different energy state. A small electric field is pulsed on briefly to destabilize and eject these converted molecules from the trap. As the microwave frequency is slowly altered, molecules distributed inside the trap (which has a varied magnetic field strength) are progressively converted and removed from the top of the trap, where molecules are hotter, to the bottom, where molecules are cooler. See also <a href="http://www.nist.gov/pml/div689/cooling-121912.cfm" rel="nofollow">www.nist.gov/pml/div689/cooling-121912.cfm</a> Credit: Baxley and Ye Group/JILA 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 | Evaporative Cooling |
Author | National Institute of Standards and Technology |
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.
English ∙ 日本語 ∙ македонски ∙ Nederlands ∙ +/− |
This image was originally posted to Flickr by National Institute of Standards and Technology at https://flickr.com/photos/63059536@N06/8363877983. It was reviewed on 21 June 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the United States Government Work. |
21 June 2018
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:44, 21 June 2018 | 900 × 900 (386 KB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
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.
Width | 900 px |
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Height | 900 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS5 Windows |
File change date and time | 12:17, 29 November 2012 |
Exif version | 2.21 |
Color space | Uncalibrated |
Date and time of digitizing | 09:44, 31 August 2012 |
Date metadata was last modified | 07:17, 29 November 2012 |
Unique ID of original document | xmp.did:AB6D4F300F206811BB8EBDE4740641DD |