Power to the constants!
On World Metrology Day what defines a kilogram, an ampere and all the other units will change fundamentally
15-May-2019 -
If you come across someone who can tell you by heart and without cheating what a kilogram is after 20 May 2019, beware! It is probably a particular kind of scientist, a metrologist, who is still overly enthusiastic about the fundamental change experienced by the International System of Units, the ...
International System of Units
metrology
natural constants