On Sun, 8 Jan 2006, Tom Van Baak wrote: > between astronomical and atomic timescales.
Could we rephrase that "between geophysical and atomic timescales" ? Astronomers measure it and have to compensate for it, not cause it. Reminds me bitterly of the widely reported loss of Mars Climate Orbiter being due to a confusion of metric and *english* units, like it was our fault. Pete.