Re: What happened between Newton and Einstein?



In sci.physics.relativity, Paul B. Andersen
<paul.b.andersen@xxxxxxxxxxxxxxxx>
wrote
on Sat, 03 Mar 2007 15:41:07 +0100
<esc1e6$qfr$1@xxxxxxxxxxxxxxxxx>:
kk wrote:
The best we can do is to completely _ignore_
Einstein's clock-setting definition, and to
find a way to get our clocks synchronized.

A way to absolutely synchronize the clocks, you mean?
But haven't you found that way years ago, Brian?

June 5, 2000 you wrote:
"I have recently found a fool-proof and very simple way to produce
(absolutely) synchronous clocks."

Paul

Presumably, clocks are easy enough to synchronize with
respect to their common reference frame (I'm assuming
spatial displacement). The trouble is that one cannot
hope to synchronize a *moving* clock, and have it stay
synchronized.

I have also heard -- somewhere -- that Boulder, CO's atomic
clock runs fast with respect to the rest of TAI; that
presumably is a GR effect. And of course NST-2 and the
rest of the constellation of GPS satellites run a little
fast (as compared/observed by Earth) and are deliberately
detuned to compensate.

So much for absolute. :-)

--
#191, ewill3@xxxxxxxxxxxxx
Linux. Because Windows' Blue Screen Of Death is just
way too frightening to novice users.

--
Posted via a free Usenet account from http://www.teranews.com

.



Relevant Pages

  • Re: Sliding Rod Experiment [PD investigates]
    ... acceleration force feels a change in his absolute speed. ... is a pair of absolutely synchronous clocks. ... to synchronize clocks. ... actual relative speeds of the clock-starting entities. ...
    (sci.physics.relativity)
  • Re: OWLS & Out of Sync Clocks-By How Much Are They Out of Sync.
    ... >have absolute simultaneity, which, as anyone knows, means that it ... >has no way to absolutely synchronize two separated clocks, ... >only absolutely synchronous clocks can yield correct results. ... OWLS will be isotropic. ...
    (sci.physics.relativity)
  • Re: To Tom Roberts
    ... Since the definition certainly applies to all frames, ... to synchronize clocks that are at rest in different frames. ... implies that your dreams of "absolute synchronization" are hopeless. ...
    (sci.physics.relativity)
  • Re: I am Trying To Learn Relativity
    ... a co-moving array of assistants that each has a clock synchronized to ... In SR, simultaneity is relative, and light travels with one-way speed c wrt any inertial frame. ... It applies even if one chooses to synchronize clocks differently. ... The coordinate clocks of SR's inertial frames are indeed synchronized using light, but you are free to synchronize the real clocks of your experiment any way you like; ...
    (sci.physics.relativity)
  • Re: Accelerating train paradox
    ... |> | Synchronize all clocks. ... | absolute synchronization of the clocks. ... Of course you use light pulses, ... | If the hammer's moving at 0.867 C when it hits the rod, the answer is, ...
    (sci.physics.relativity)

Quantcast