Random science thought:
My suspicion is that most non-science people don’t realize that just coming up with a definition “this is a kilogram” and then being able to make a measurement in a lab where you can say with confidence “this is a kilogram” has involved an an unimaginably huge amount of work and gazillions of dollars
(#Metrology toots coming in hot!!)
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Agreed, once you look more in to this, e.g definition of a unit then it is really interesting but takes quite a lot to comprehend.
I think we are now going to use Yittrium to define a second rather than Caesium.
