John Reid
Feb11-09, 06:11 AM
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=========first sent 2-6-09===did not show get thru=============
THIS IS AARON ARCSEC's REPLY TO ROBERT BRISTOW-JOHNSON
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RESEND (3rd Try) 2-10-2009 (ia e-mail)
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Bob, take a look at my reply to Sue (after or before you read
my reply to you below).
On Fri, 6 Feb 2009, robert bristow-johnson wrote:
>why is the speed of light constant for different observers moving
>relative to each other? it's because there is no way to prefer one
>inertial, but moving (at least from the POV of someone else) observer
>to any other inertial (but also moving) observer. both observers have
>equal claim to be the "stationary" observer and that the other guy is
>the one who is moving. if you can't prefer one over the other, the
>laws of physics must be the same.
But what if a law of physics allows you to detect your movement
through space?
This is indeed the case with the one-way light speed law w = c ± v.
In my reply to Sue, I presented a simple experiment that yields the
above law at least qualitatively. Additionally, observers using the
absolutely synchronous clocks of classical physics will obtain this
law quantitatively.
Yes, experiment (the one I showed to Sue) says that light's one-way
speed varies with frame velocity v.
But, in full accordance with the principle of relativity, _all_
observers find this _same_ general law (w = c ± v).
On the other hand, no one has ever shown experimentally (or even
on paper) that the one-way law is Einstein's w = c for all.
Can you dream up an actual experiment which shows that light's
speed between two same-frame clocks is c?
>... (even though you are both moving relative to the other.) there is
>no reason that the other guy should solve the Maxwell's equations
>and get a different c than you get ....
>r b-j
Yes, but this is because Maxwell's equations do not pertain to the
one-way, two-clock light speed. Maxwell did not use two clocks
to measure light's speed, so Maxwell did not show experimentally
that all frames get c one-way. Einstein did not show this, either.
That is why I am asking how it can be done. I don't even see how
it is possible, do you?
==A-A==
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=========first sent 2-6-09===did not show get thru=============
THIS IS AARON ARCSEC's REPLY TO ROBERT BRISTOW-JOHNSON
================================================== =============
RESEND (3rd Try) 2-10-2009 (ia e-mail)
================================================== =============
Bob, take a look at my reply to Sue (after or before you read
my reply to you below).
On Fri, 6 Feb 2009, robert bristow-johnson wrote:
>why is the speed of light constant for different observers moving
>relative to each other? it's because there is no way to prefer one
>inertial, but moving (at least from the POV of someone else) observer
>to any other inertial (but also moving) observer. both observers have
>equal claim to be the "stationary" observer and that the other guy is
>the one who is moving. if you can't prefer one over the other, the
>laws of physics must be the same.
But what if a law of physics allows you to detect your movement
through space?
This is indeed the case with the one-way light speed law w = c ± v.
In my reply to Sue, I presented a simple experiment that yields the
above law at least qualitatively. Additionally, observers using the
absolutely synchronous clocks of classical physics will obtain this
law quantitatively.
Yes, experiment (the one I showed to Sue) says that light's one-way
speed varies with frame velocity v.
But, in full accordance with the principle of relativity, _all_
observers find this _same_ general law (w = c ± v).
On the other hand, no one has ever shown experimentally (or even
on paper) that the one-way law is Einstein's w = c for all.
Can you dream up an actual experiment which shows that light's
speed between two same-frame clocks is c?
>... (even though you are both moving relative to the other.) there is
>no reason that the other guy should solve the Maxwell's equations
>and get a different c than you get ....
>r b-j
Yes, but this is because Maxwell's equations do not pertain to the
one-way, two-clock light speed. Maxwell did not use two clocks
to measure light's speed, so Maxwell did not show experimentally
that all frames get c one-way. Einstein did not show this, either.
That is why I am asking how it can be done. I don't even see how
it is possible, do you?
==A-A==
__________________________________________________ _______________
Windows Live™: E-mail. Chat. Share. Get more ways to connect.
http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t2_allup_explore_022009