I believe they use atomic clocks which measure the radioactive decay and then they time the number of atomic particles get emitted over the course of a year etc.
I guess the general assumption is that the atomic decay is very consistent and shouldn't deviate within our general lifespans and not over a year.
So you have a counter which spurts out radioactive decay at XYZ particles per year.
So one year it is XYZ + 10 and they say, ' looks like it's 10 spurts more this year to go around'
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How they measure the point of reference though is a good point....as that too would need to be tied to the exact moment the sun passes a point in space.
So you could have a good point, especially when they try to factor in relativity and quantum operations on that decay and reference point.
They change the global clocks as if it does....so all internet clocks depend on it
I believe they use atomic clocks which measure the radioactive decay and then they time the number of atomic particles get emitted over the course of a year etc.
I guess the general assumption is that the atomic decay is very consistent and shouldn't deviate within our general lifespans and not over a year.
So you have a counter which spurts out radioactive decay at XYZ particles per year.
So one year it is XYZ + 10 and they say, ' looks like it's 10 spurts more this year to go around'
--
How they measure the point of reference though is a good point....as that too would need to be tied to the exact moment the sun passes a point in space.
So you could have a good point, especially when they try to factor in relativity and quantum operations on that decay and reference point.