🚀 go-pugleaf

On Mar 30, 12:28 am, Pentcho Valev <pva...@yahoo.com> wrote:
> A rocket with length h accelerates with acceleration g. A light source
> at the front end emits light with speed c relative to the source. A
> receiver at the back end receives the light and measures its speed c'
> to be:
>
> Premise 1: constant, c'=c.
>
> Premise 2: variable, c'=c+v, where v is the relative speed of the
> light source (at the moment of emission) and the receiver (at the
> moment of reception).
>
> A light source at the top of a tower of height h emits light with
> speed c relative to the source. A receiver on the ground receives the
> light.
>
> Prediction 1 deduced from Premise 1: The receiver on the ground will
> measure the speed of light to be constant, c'=c.

Not quite right. The receiver on the ground will measure the speed of
light to be constant, c'=c, AND the receiver will also measure the
gravitational redshift factor to be 1 + gh/c^2. Both of these
statements are confirmed by experiment, and both of those statements
are consistent with GR as published in 1915.

Einstein did not formulate the *correct* theory of GR until 1915. Work
beyond SR and prior to 1911 contained a number of statements that were
later corrected by himself. It is not unusual in science for an author
to publish "work in progress" which later gets corrected.

>
> Prediction 2 deduced from Premise 2: The receiver on the ground will
> measure the speed of light to be variable, c'=c(1+gh/c^2), an equation
> Einstein deduced in 1911. The receiver will also measure the
> gravitational redshift factor to be 1+gh/c^2, a value predicted by
> Einstein and confirmed experimentally by Pound and Rebka in 1960.
>
> Pentcho Valev
> pva...@yahoo.com