Thread: TFF Shuttle
View Single Post
Old October 13 2012, 08:14 AM   #24
FKnight's Avatar
Re: TFF Shuttle

B.J. wrote: View Post
Uh, you know that the only reason your GPS works the way it does is because we've had to compensate for the relativistic effects of the satellites' motion, right?

As for all that other nonsense, I don't even know where to start....
That gets stated a lot by pro-relativists, but it's not actually true. Determining your location via GPS is based on the differences between the time signals of various satellites and not in any way based on the difference between a satellite time signal and the device's Earth surface local time, as is commonly incorrectly believed.

GPS computes time differences between satellites all moving at the same speed relative to each other. GPS doesn't care what time it is where you're standing relative to the satellites. Relativity is irrelevant to GPS.
"You have been examined. Your ship must be destroyed. We make assumption you have a deity, or deities, or some such beliefs which comfort you. We therefore grant you ten Earth time periods known as minutes to make preparations."
FKnight is online now   Reply With Quote