They redefined it a few years ago to base all units on some objectively measurable natural constant. Because that stick of metal might still decay or warp or something and you don’t always want to travel to France when you want to know the length of a meter. Much easier to measure the atoms and light you have on hand.
They redefined it a few years ago to base all units on some objectively measurable natural constant. Because that stick of metal might still decay or warp or something and you don’t always want to travel to France when you want to know the length of a meter. Much easier to measure the atoms and light you have on hand.
Updating the kilogram standard took them forever because you need really reliable force measurement instruments and very precise calibration
How many midi-chlorians does 1 meter have tho…