[time-nuts] UTC and leap seconds

Poul-Henning Kamp phk at phk.freebsd.dk
Fri Jun 11 10:03:27 UTC 2010


In message <815517.110281276250464575.JavaMail.root at wmail51>, "iovane at inwind.it
" writes:
>
>I was wondering, why we assume that  Earth's rotation is slowing down, instead 
>that clocks are speeding up?

Because we can measure it relative to the position of very distant
quasars.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.




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