3 ms·
I did too, but apparently they only defined it for the second, meter and candela. Are other units still tied to physical measures, or is this all of them?
by jakelazaroff 8y ago
I did too, but apparently they only defined it for the second, meter and candela.
Are other units still tied to physical measures, or is this all of them?
- lb1lf 8y agoThe kilogram was the last unit tied to a physical object. Finally!!! As you stroll Paris, you can still find various meter secondary standards - bolted onto public buildings to aid in commerce back in the day.