Cecil Moore wrote:
wrote:
Are you saying you don't believe that is the definition of the second
since 1967 or that you don't understand the definition?
The definition is relative, not absolute. If the
relative speed of the earth is changing, then the
length of a second is also changing and we would
have no way of knowing.
The speed of the Earth relative to what?
But since the second is defined in the inertial frame of the Earth, it
doesn't matter.
Why do you think GPS satellites correct for their velocity and gravity
relative to the geoid?
BTW, you do know the second at sea level is different than the second
on top of a mountain due to gravity?
--
Jim Pennino
Remove .spam.sux to reply.