>>12225400>Yes it is because they are going to have to explain sources of error that exist due to relativistic effects.http://youstupidrelativist.com/MPSR.htmlThe fact that GPS works does not imply that the explanation relativity offers is rational.
Indeed, GPS was perfected through trial and error and not through equations. That's why it 'works'. Several
tests showed the amount of time that the clocks on board would gain or lose at different speeds and altitudes.
Project managers incorporated these adjustments into the system that is out there today and the entire system
needs to be tweaked by 38 microseconds per day! It's as if you had to readjust your alarm clock every night
because it doesn't work right. Does this prove that your time is stretched? These adjustments were determined
empirically by NASA (Gravity Probe A) and not through Einstein's equations. As Tom van Flandern who worked
on the GPS project testified:
"...the GPS engineers reset the clock rates, slowing them down before launch by 39,000 nanoseconds a day. They then proceed to tick in orbit at the same rate as ground clocks, and the system "works." Ground observers can indeed pin-point their position to a high degree of precision. In (Einstein) theory, however, it was expected that because the orbiting clocks all move rapidly and with varying speeds relative to any ground observer (who may be anywhere on the Earth's surface), and since in Einstein's theory the relevant speed is always speed relative to the observer, it was expected that continuously varying relativistic corrections would have to be made to clock rates. This in turn would have introduced an unworkable complexity into the GPS. But these corrections were not made. Yet "the system manages to work, even though they use no relativistic corrections after launch. They have basically blown
off Einstein."
