Published in Review of Scientific Instruments · View the paper (DOI)
Scientists have reached a milestone in replacing the standard kilogram with a fundamental constant of nature, measuring Planck's constant for the first time. The new watt balance device has an uncertainty of only 34 parts per billion, a step closer to redefining the kilogram.
Coverage from 2 institutions
- Important milestone reached on road to a redefined kilogram American Institute of Physics · Jun 21, 2016 · first to report
- Measuring Planck's constant, NIST's watt balance brings world closer to new kilogram National Institute of Standards and Technology (NIST) · Jun 21, 2016