NIST-4_Kibble_balance.jpg
Size of this preview:
431 × 599 pixels
.
Other resolutions:
172 × 240 pixels
|
345 × 480 pixels
|
552 × 768 pixels
|
736 × 1,024 pixels
|
1,472 × 2,048 pixels
|
4,832 × 6,720 pixels
.
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 location |
|
View this and other nearby images on: OpenStreetMap |
|
|---|
Licensing
|
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
.
|
|