Re: The old definition of second is winning against SI idiocy

Le 03/07/2025 à 12:49, Maciej Woźniak a écrit :
..

Samely as the clocks of the real world
are [...] keeping
indicating t'=t.

There are two clocks near my place, one kilometer appart at two train stations.
What you mean by t is shown by one of these clocks, and t' by other one, right?
How could I check if t = t' ? Both clocks are displaying a lot of different values: 15:20:21, 15:33:12, and so on...
Should I note on a paper the value displayed on clock A, then walk to clock B and compare the "t" I recordes with the "t'" I can see then? I don't think this will work very well. Do you think it will?
So what should I do? How should I pick relevant values for "t" and "t'", as they are changing, in order to be able to check if t = t' (i.e.  both clocks are "serious clocks" in your terms) or not? This is an engineering practical subject and a very serious question Wozniak.