[LEAPSECS] Nit-pick: SI second

Tom Van Baak tvb at LeapSecond.com
Mon Feb 7 14:10:09 EST 2011

> It is also why TAI's rate was adjusted in the 1990's to compensate for

> the red-shifted data that had been collected at NIST in Boulder, since

> it sits at about 5400' (1700m) above sea level (as well as other

> facilities not at sea level).


> Warner

Are you sure you aren't confusing red shift (which has been
a known factor since the 60's) with blackbody shift (which
only arose in the 90's as clocks hit the 1e-15 level)?


More information about the LEAPSECS mailing list