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File:NIST-4 Kibble balance.jpg

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Summary

Description
English: The NIST-4 Kibble balance, which began full operation in early 2015 at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland, United States, measured Planck's constant to within 13 parts per billion in 2017, which was accurate enough to assist with the redefinition of the kilogram planned for 2019.
Date
Source https://www.nist.gov/image/nist4wattbalancejpg
Author Jennifer Lauren Lee, for the U.S. National Institute of Standards and Technology (NIST)
Camera location39° 07′ 58.43″ N, 77° 12′ 56.6″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

Licensing

Public domain
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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inception

1 September 2015

coordinates of the point of view

39°7'58.429"N, 77°12'56.599"W

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Date/TimeThumbnailDimensionsUserComment
current20:34, 10 September 2017Thumbnail for version as of 20:34, 10 September 20174,832 × 6,720 (15.68 MB)BirdfernUser created page with UploadWizard

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