[LEAPSECS] nails in the coffin of mean solar time
M. Warner Losh
imp at bsdimp.com
Sat Jun 16 18:46:49 EDT 2007
In message: <20070615202819.GA16679 at cox.net>
Greg Hennessy <greg.hennessy at cox.net> writes:
: > Here's one way to consider the question. In the 1960's when
: > leap seconds were first proposed how many astronomers and
: > how many DUT1-impacted telescope installations were there?
: I don't consider this a valid way of considering the question, since
: there are many people other than astronomers who care if lack of leap
: seconds eventually means "noon" is in the middle of the night.
That's a lame argument. I'm sorry, but it really is.
The definition of the second has changed 3 times during my life time.
There's every reason to believe that the system will change more times
in the coming generations as well. The current definition of the
second as 1/86400 of a day is in conflict with those pesky Cs atoms.
The earth is a poor clock, and something must give.
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