File:NIST-4_Kibble_balance.jpg
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Original file (4,832 × 6,720 pixels, file size: 15.68 MB, MIME type: image/jpeg)
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Summary
DescriptionNIST-4 Kibble balance.jpg |
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 location | 39° 07′ 58.43″ N, 77° 12′ 56.6″ W | View this and other nearby images on: OpenStreetMap | 39.132897; -77.215722 |
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Licensing
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 ∙ +/− |
Items portrayed in this file
depicts
1 September 2015
39°7'58.429"N, 77°12'56.599"W
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:34, 10 September 2017 | 4,832 × 6,720 (15.68 MB) | Birdfern | User created page with UploadWizard |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D800 |
Exposure time | 1/10 sec (0.1) |
F-number | f/8 |
ISO speed rating | 1,600 |
Date and time of data generation | 13:17, 1 September 2015 |
Lens focal length | 32 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CC 2015 (Macintosh) |
File change date and time | 10:38, 20 June 2016 |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Shutter speed | 3.321928 |
APEX aperture | 6 |
Exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Center weighted average |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Color space | Uncalibrated |
Focal plane X resolution | 2,048.4022216797 |
Focal plane Y resolution | 2,048.4022216797 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 32 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Hard |
Subject distance range | Unknown |
Serial number of camera | 3039931 |
Lens used | 24.0-70.0 mm f/2.8 |
Date and time of digitizing | 13:17, 1 September 2015 |
Rating (out of 5) | 0 |
Date metadata was last modified | 06:38, 20 June 2016 |
Unique ID of original document | 7618F1DB6E416F83D01ED0536BB76804 |
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