SR/GR use absolute time to synchronize the GPS clocks with the ground clock.
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From: kenseto on 19 Mar 2010 10:26 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. 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. 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. 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. Ken Seto
From: waldofj on 19 Mar 2010 12:23 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. > 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. > 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
From: Sam Wormley on 19 Mar 2010 13:00 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. 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: eric gisse on 19 Mar 2010 14:41 kenseto wrote: > SR/GR use absolute time [snip rest, unread] You are the only one who thinks this, Ken.
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 |