Re: [LEAPSECS] the tail wags the dog
James Maynard wrote:
> The problem is not that the SI second is not based on a natural
> phenonemon (it is), but that the periods of the various natural
> phenonema (rotations of the earth about its axis revolutions of the
> earth about the sun, revolutions of the moon around the earth, etc.) are
> both incommensurate and changing.
Not to mention the hyperfine wibbles of caesium-133.
Received on Tue Jan 24 2006 - 07:08:42 PST
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: Sat Sep 04 2010 - 09:44:55 PDT