Re: GPS CLOCK PARADOX

On Jan 30, 1:54 pm, "Ockham" <m...@xxxxxxxxxxxxxxxxxx> wrote:
"Randy Poe" <poespam-t...@xxxxxxxxx> wrote in message

news:bbd2c968-10a2-4310-8cb5-9edac2e950cd@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| On Jan 30, 11:27 am, "Ockham" <m...@xxxxxxxxxxxxxxxxxx> wrote:
| > "The Ghost In The Machine" <ew...@xxxxxxxxxxxxxxxxxxxxxxx> wrote in
messagenews:l2d675-gfp.ln1@xxxxxxxxxxxxxxxxxxxxxxxxxx
| > | In sci.physics.relativity, Jeckyl
| > | <no...@xxxxxxxxxxx>
| > | wrote
| > | on Wed, 30 Jan 2008 21:28:28 +1100
| > | <13q0kaft9d71...@xxxxxxxxxxxxxxxxxx>:
| > | > "Ockham" <m...@xxxxxxxxxxxxxxxxxx> wrote in message
| > | >news:SAXnj.14454$3m6.7071@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > | >>
| > | >> "snapdragon31" <snapdrago...@xxxxxxxxx> wrote in message
| > |
>>news:dc482e20-b4df-43ff-a84e-70909a0b93b2@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > | >> On Jan 29, 8:54 pm, Randy Poe <poespam-t...@xxxxxxxxx> wrote:
| > | >>> On Jan 29, 8:14 pm, HW@....(Dr. Henri Wilson) wrote:
| > | >>>
| > | >>> > According to relativists, GPS clocks GAIN 38us per day on the
ground
| > | >>> > clock.
| > | >>> > That is due to two components, 45us for gravity and -7us for
| > relative
| > | >>> > speed.
| > | >>>
| > | >>> > Accordingly, an observer (OO) in GPS orbit would see the GC
LOSING
| > 52us
| > | >>> > per
| > | >>> > day.
| > | >>>
| > | >>> > After one year, the OO would calculate that the OC was about
19ms
| > ahead
| > | >>> > of the
| > | >>> > GC.
| > | >>> > However, the GO would calculate that his GC was only 13ms
behind.
| > | >>>
| > | >>> > What happens when the clocks are reunited?
| > | >>> > Who is right?
| > | >>>
| > | >>> Two people drive different routes from city A to
| > | >>> city B. When they are reunited, one odometer reads
| > | >>> 220 km and the other reads 230 km. Which one is
| > | >>> right?
| > | >>>
| > | >>> - Randy
| > | >>
| > | >> | According to relativity, both odometer readings are wrong. They
do
| > | >> | not represent the true distance of the routes travelled because
of
| > the
| > | >> | length contraction effect.
| > | >> | According to Newton's law, both odometer readings are right.
| > | >>
| > | >> | The GPS clock paradox is a variation of the twin paradox, so no
valid
| > | >> | solution.
| > | >>
| > | >> The paradox resides in the third postulate.
| > | >
| > | > Androcles .. we've told you .. there is no third postulate
| > |
| > | Yes there is; it's not usually expressed as a postulate, but
| > | it is a simple one:
| > |
| > | - If a TWLS be conducted between a source and a moving mirror,
| > | then the time taken (as observed by the source) of the
| > | light beam from source to mirror and back to source is
| > | exactly twice that of the time taken from source to
| > | mirror. In other words, t_AB = t_BA.
| >
| > Not true, the reflected beam will be doppler shifted.
|
| Yes, both wavelength and frequency experience a doppler shift.

Nope.

Yep. Measurably.

|
| > That's how doppler radar works.
| > Since c1 = lamba1 * f outbound and c2 = lambda2 * f inbound
| > it follows that c1 <> c2.
|
| How does that follow without a statement about
| how both lambda and f shift?

It was explained to you using a standing wave. That you don't
understand Galilean relativity is is your problem.

That you think the data should be changed when
it doesn't match your theory is yours.

- Randy
.

Relevant Pages

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