SR/GR use absolute time to synchronize the GPS clocks with the ground clock.
in [Relativity]
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From: kenseto on 20 Mar 2010 07:44 On Mar 19, 12:23 pm, waldofj <wald...(a)verizon.net> wrote: > On Mar 19, 10:26 am, kenseto <kens...(a)erinet.com> wrote:> SR/GR use absolute time to synchronize the GPS clocks with the ground > > clock as follows: > > 1. A standard clock second is defined to have 9,192,631,770 periods of > > Cs 133 radiation or N periods of Cs 133 radiation. > > that's the current definition of the second. > > > 2. Before a GPS clock is launched into orbit its clock second is > > redefined to have (N +4.15) periods of Cs 133 radiation. This means > > that while in orbit a GPS second is defined to have (N+4.15) periods > > of Cs 133 radiation. > > You mean the clocks divider has to be modified to compensate for > relativistic effects. The relativistic effects are due to a period of Cs 133 radiation at the GPS location contains less amount of absolute time than a period of Cs 133 radiation on the ground clock. > > > 3. The reason for the redefinition of the GPS second is to make (N > > +4.15) periods of Cs 133 radiation at the GPS orbiting location to > > contain the same amount of absolute time as N periods of Cs 133 > > radiation on the ground clock. > > No such thing as absolute time. If there was it wouldn't be necessary > to modify the clock. Assertion is not a valid arguement. It appears that you don't know what absolute time mean. The modified GPS second contains the same amount of absolute time as a standard second on the ground. The passage of absolute time is frame independent and that's why absolute time is used to make the two clocks in synch continuously. > > > 4. The redefined GPS second makes the GPS clock in synch with the > > ground clock continuously. The only daily adjustment is to correct the > > daily drifts. > > sort of. > > how do you spell head? > B O N E Yeah....how do you spell BONE HEAD??? Ken Seto
From: kenseto on 20 Mar 2010 07:57 On Mar 19, 1:00 pm, Sam Wormley <sworml...(a)gmail.com> wrote: > On 3/19/10 9:26 AM, kenseto wrote: > > > SR/GR use absolute time to synchronize the GPS clocks... > > You have been totally mislead about this concept of "absolute" > time, distance, or position. Special and general relatively > have no need of absolute time and onservation shows that there > is no absolute time. Hey Wormy absolute time is the only time that exists. Observed relativistic effects are due to a moving clock second contains a different amount of absolute time than the observer's clock second. Ken Seto > > Seto--You really need to sit down and learn special relativity. > There has never been an observation that contracts a prediction > of special relativity. It remains a very fruitful theory and > you should take the time to learn it, Seto. > > What is the experimental basis of special relativity? > http://math.ucr.edu/home/baez/physics/Relativity/SR/experiments.html > > How do you add velocities in special relativity? > http://math.ucr.edu/home/baez/physics/Relativity/SR/velocity.html > > Can special relativity handle acceleration? > http://math.ucr.edu/home/baez/physics/Relativity/SR/acceleration.html
From: Michael Moroney on 20 Mar 2010 21:57 Hey, fool. A crazy musician composes his musical masterpiece where one of the "instruments" is a train horn. The audience, on a train platform, is supposed to hear the horn at the tone of "A" above Middle C (which is 440 Hz BTW). The train will approach the station at 60 mph. 1) What frequency horn should the composer request to be installed on the train, so that the audience will hear it at the correct frequency? 2) Has the composer, (or the train engineer, or anyone else,) by installing the correct horn, redefined "A" above Middle C? Why or why not?
From: kenseto on 21 Mar 2010 10:06 On Mar 20, 9:57 pm, moro...(a)world.std.spaamtrap.com (Michael Moroney) wrote: > Hey, fool. A crazy musician composes his musical masterpiece where one of > the "instruments" is a train horn. The audience, on a train platform, is > supposed to hear the horn at the tone of "A" above Middle C (which is 440 > Hz BTW). The train will approach the station at 60 mph. Hey idiot....you are describing a doppler situation. It got nothing to do with the sychronization of two relatively moving clocks. Ken Seto > 1) What frequency horn should the composer request to be installed on the > train, so that the audience will hear it at the correct frequency? > 2) Has the composer, (or the train engineer, or anyone else,) by installing > the correct horn, redefined "A" above Middle C? Why or why not?
From: Sam Wormley on 21 Mar 2010 10:46
On 3/21/10 9:06 AM, kenseto wrote: > Hey idiot....you are describing a doppler(sic) situation. It got nothing to > do with the sychronization(sic) of two relatively moving clocks. > > Ken Seto Why, pray tell, do you think one can ignore Doppler effects when measuring signals from moving clocks? |