Why Pendulum as a clock do not shows, what General Theory of Relativity predicts?
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From: Sam Wormley on 28 Nov 2009 14:54 Enes wrote: > > Which clock is good to measure time? > Does it depends of time only and not of gravity? Use a clock (an accurate clock) where orientation does not matter. Space based atomic clocks come to mind. See: Relativistic Effects on Satellite Clocks http://relativity.livingreviews.org/open?pubNo=lrr-2003-1&page=node5.html
From: Enes on 28 Nov 2009 15:17 On 28 Lis, 20:54, Sam Wormley <sworml...(a)mchsi.com> wrote: > Enes wrote: > > > Which clock is good to measure time? > > Does it depends of time only and not of gravity? > > Use a clock (an accurate clock) where orientation does not > matter. Space based atomic clocks come to mind. > > See: Relativistic Effects on Satellite Clocks > http://relativity.livingreviews.org/open?pubNo=lrr-2003-1&page=node5.... Let it be, that atomic clock not depends of gravity, measures time only. How can it measures different time in different gravity?
From: Sam Wormley on 28 Nov 2009 15:31 Enes wrote: > On 28 Lis, 20:54, Sam Wormley <sworml...(a)mchsi.com> wrote: >> Enes wrote: >> >>> Which clock is good to measure time? >>> Does it depends of time only and not of gravity? >> Use a clock (an accurate clock) where orientation does not >> matter. Space based atomic clocks come to mind. >> >> See: Relativistic Effects on Satellite Clocks >> http://relativity.livingreviews.org/open?pubNo=lrr-2003-1&page=node5.... > > Let it be, that atomic clock not depends of gravity, measures time > only. > > How can it measures different time in different gravity? Gravitational time dilation http://en.wikipedia.org/wiki/Gravitational_time_dilation But then you already knew that. Enes wrote: > When there is less gravitation: > tiiiiik..........taaak, tiiiiik..........taaak.... > > The time is quite different, than GR predicts.
From: Enes on 28 Nov 2009 15:46 On 28 Lis, 21:31, Sam Wormley <sworml...(a)mchsi.com> wrote: > Enes wrote: > > On 28 Lis, 20:54, Sam Wormley <sworml...(a)mchsi.com> wrote: > >> Enes wrote: > > >>> Which clock is good to measure time? > >>> Does it depends of time only and not of gravity? > >> Use a clock (an accurate clock) where orientation does not > >> matter. Space based atomic clocks come to mind. > > >> See: Relativistic Effects on Satellite Clocks > >> http://relativity.livingreviews.org/open?pubNo=lrr-2003-1&page=node5.... > > > Let it be, that atomic clock not depends of gravity, measures time > > only. > > > How can it measures different time in different gravity? > > Gravitational time dilation > http://en.wikipedia.org/wiki/Gravitational_time_dilation > " Clocks which are far from massive bodies (or at higher gravitational potentials) run faster, and clocks close to massive bodies (or at lower gravitational potentials) run slower. This is because gravitational time dilation is manifested in accelerated frames of reference or, by virtue of the equivalence principle, in the gravitational field of massive objects." It is not true. Pendulum clock runs vice versa. > But then you already knew that. > > Enes wrote: > > When there is less gravitation: > > tiiiiik..........taaak, tiiiiik..........taaak.... > > > The time is quite different, than GR predicts.
From: Enes on 28 Nov 2009 16:05
On 28 Lis, 20:54, Sam Wormley <sworml...(a)mchsi.com> wrote: > Enes wrote: > > > Which clock is good to measure time? > > Does it depends of time only and not of gravity? > > Use a clock (an accurate clock) where orientation does not > matter. Space based atomic clocks come to mind. > > See: Relativistic Effects on Satellite Clocks > http://relativity.livingreviews.org/open?pubNo=lrr-2003-1&page=node5.... Btw, Sam, in http://en.wikipedia.org/wiki/Pound-Rebka_experiment was orientation matter or not ? |