Tony Finch wrote:
On Thu, 1 Jan 2009, Rob Seaman wrote:
Mean solar time will outlast artificial clocks and the species that
built them by a factor of something like 5,000,000,000 to 50,000.
Not really, because mean solar time is also artificial and can't exist
without mechanical clocks and telescopes.
And I suppose the refrigerator light goes out when the door is
closed :-)
Once more from the top, mean solar time is just sidereal time offset
by a little bit to make up for the Earth lapping the Sun once a year.
Nowhere does humanity appear in the equation, just the Earth and Sun
and Stars.
Apparent solar time is derived from mean solar time, not the other way
around.
Rob
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