“Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.”
Maire Curie, Scientist (1867-1934).
Wednesday, 13 July 2016
Weights are measured
As part of the project to redefine the kilogram the NIST-4 watt balance
has completed new measurements of Planck’s constant. The value of h being
6.62606983 x 10–34 kg.m2/s with an uncertainty of plus or minus 22 on the last