“I guess we all like to be recognized not for one piece of fireworks, but for the ledger of our daily work.” Neil Armstrong, Astronaut (1930 – 2012).
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