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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
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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If the file has been modified from its original state, some details may not fully reflect the modified file.
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The following pages on the
English Knowledge (XXG) use this file (pages on other projects are not listed):
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Jennifer Lauren Lee, for the U.S. National
Institute of Standards and Technology (NIST)
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39° 07′ 58.43″ N, 77° 12′ 56.6″ W
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Commons is a freely licensed media file repository.
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1019:Flash did not fire, compulsory flash suppression
768:Изменения определений основных единиц СИ (2019)
285:National Institute of Standards and Technology
178:https://www.nist.gov/image/nist4wattbalancejpg
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
