F-ckin Leap Seconds, how do they work?
dot at dotat.at
Tue Jul 3 23:15:09 UTC 2012
Vadim Antonov <avg at kotovnik.com> wrote:
> But in theory, if you can get the technical wrinkles worked out, you can
> derive the same frequency standard in your lab with a single instrument.
> (One more issue is that non-relativistic time is not only the frequency of
> oscillators, but also a reference point).
Your parenthetical point explains why TAI does not tick at the same rate
as the SI second in your lab, expecially if your lab is (for example) in
Colorado. You have to adjust the frequency depending on your difference in
gravitational potential from the geoid.
f.anthony.n.finch <dot at dotat.at> http://dotat.at/
Biscay: West or southwest 4 or 5, decreasing 3 at times. Moderate. Rain then
showers. Moderate or good, occasionally poor at first.
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