How units derive from first principles enshrined in Great British law
https://go.theregister.com/feed/www.theregister.com/2020/06/17/weights_and_measures_june_2020_amendments/
As much of the world’s capitals erupt in protests and millions look fearfully at news of job losses and economic contraction, Great Britain has taken the legal step of redefining the metre and kilogram in law.…
https://go.theregister.com/feed/www.theregister.com/2020/06/17/weights_and_measures_june_2020_amendments/