Re: GR frequency shift formula


"Sue..." <suzysewnshow@xxxxxxxxxxxx> wrote in message news:1144615332.767934.167860@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
|
| vanep@xxxxxxx wrote:
| snip
| > > > The correction is ~38,500 nanoseconds/ day.
| > >
| > > Almost right!
| >
| > The GR formula gives the approximate prediction correctly. Your formula
| > is incorrect by over 2000 nanoseconds/day. Using your correction would
| > result in the GPS being off ~ 615,4 meters/day.
| >
| > http://www.phys.lsu.edu/mog/mog9/node9.html
|
| What does GR predict for a cesium clock located in
| hollow in the center of the planet ?

The planet doesn't have a hollow centre.
However, the idiot's imagination is running wild as well,
the true figure for the error is about half an inch, not half a mile.
http://www.androcles01.pwp.blueyonder.co.uk/GPS/sundials.htm

Androcles.

|
| Sue...
|
| >
| > > My formula, which takes the relative velocity of the satellite based
| > > and Earth based
| > > clocks into account, reduces to
| > > Nu2/Nu1 = 1 + M2*(1/R2-1/d-1/2d)
| > > Shift = Nu2/Nu1 - 1 = 3.66E-10, which is the correct value.
| > > Multiply the shift by the day in nanoseconds (8.64E10), and you get ~
| > > 31.6 nanoseconds/day.
| >
| > The value is 38 thousand 5 hundres nanoseconds/day.
| >
| > http://www.eftaylor.com/pub/projecta.pdf
| >
| > > Notice that my reduced formula is identical to the GR approximate
| > > formula.
| >
| > Your formula is garbage. If it was identical to the GR formula it would
| > make a prediction that was incorrect by over 2000 nanoseconds/day.
| >
| > > > Using your formula the GPS would have crashed and burned in a couple of
| > > > minutes.
| > >
| > > Seemingly, you have a problem with simplifying a formula.
| >
| > You can't even convert your scientific notation to nanoseconds. You
| > seeminly think your formula predicts a delta of 31.6 nanoseconds/day.
| >
| >
| >
| >
| > >
| > > > Clearly you must know the GPS is completely functional and the
| > > > correction was made using GR so what logic leads you to make the
| > > > comment "Clearly, GR is a very poor tool"?
| > >
| > > GR can only solve simple cases, like the GPS one.
| > > Remember that to my question
| > > "Do I have to conclude that GR cannot numerically solve this elementary
| > >
| > > problem where
| > > M1 = M* ( M* = 1 solar mass), R1 = 5 Km, M2 = 5 M*, R2 = 20 km, d = 50
| > > km ?",
| >
| > Folks who understand relativistic physics know what the difference is
| > between the weak and strong gravitational field. GR certainly is a poor
| > tool for you because you never read the operations manual. If we were
| > talking about a chain saw you would have cut off your leg.
| > >
| > > Tom rightly answered
| > > "No. But there is no useful approximation that applies, and this is a
| > > quite complicated computation that can only be performed via numerical
| > > simulation.",
| > >
| > > whereas my formula at least gives straightforwardly an approximate
| > > solution (Nu2/Nu1=0.9). If you are skeptical, perform the numerical
| > > simulation.
| >
| > Your formula is wrong. It doesn't give he right answer for the GPS.
| >
| > If you could (what I doubt), you should obtain ~0.87.
| > > As long as GRists content themselves with generalities or easy slogans,
| > > they will not be taken seriously.
| >
| > They will never be takin seriously by cranks such as yourself..
| >
| > >
| > > Marcel Luttgens
|
.

Relevant Pages

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  • Re: GR frequency shift formula
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