Re: Light Speed



Dear Jeckyl:

"Jeckyl" <noone@xxxxxxxxxxx> wrote in message
news:131e65r844e3698@xxxxxxxxxxxxxxxxxxxxx
"N:dlzc D:aol T:com (dlzc)" <dlzc@xxxxxxx> wrote in message
news:15ERh.120120$115.17420@xxxxxxxxxxxxxxx
Dear Jeckyl:

"Jeckyl" <noone@xxxxxxxxxxx> wrote in message
news:131e0ckmo030l9b@xxxxxxxxxxxxxxxxxxxxx
"N:dlzc D:aol T:com (dlzc)" <dlzc@xxxxxxx> wrote in message
news:w5DRh.154993$p17.38158@xxxxxxxxxxxxxxx
...
You can devise no experiment to measure a speed
of light, that is not a TWLS measurement. One way
or another, Nature requires this.

You can look for anisotropy...

Is it not possible to have two distant synchronized
clocks

Synchronization? By what method? If it is by TWLS
signalling, the only light speed measurement you can
obtain is TWLS.

By setting then at the same time, then moving both to
the appropriate positions, with the same, but opposite
motion.

You build a castle of sand. "appropriate positions", "same, but
opposite motion" establishes TWLS distance... because otherwise
how do you know where it moved to is "appropriate", and how do
you know they moved there in the same way? Telepathy,
telekinesis?

in the same FoR, one at an emitter and one at a
receiver, and at a preset time emit a beam of
photons and then record the time at which the
photons arrive at the other end.

It is a classical TWLS setup.

How can that be two way .. it is only measuring from
the emitter to the receiver .. ther eis no two-way
measurement there.

"Distance" is such a measurement. And can be done *no other
way*.

Same for any distance-based measurement, since
distance is TWLS established (and little different
than a remote synchronized clock).

eh?

How is the length of a rod established? Look into metrology.
Start here for terms:
http://nvl.nist.gov/pub/nistpubs/jres/104/3/html/j43bee.htm

What would be make that impossible, or a TWLS
measurement?

All measurements of *speed* are based on distance.
All calibrated distances are TWLS established.

I can drive my car a certain distance without the need
for TWLS :)

Actually no. Because you are blind to its need, does not mean it
is not fundamentally present.

Are you saying it is impossible to know the distance
between two locations unless you use TWLS to
calculate it?

You tell me ways you don't think require it. I'll help you find
the TWLS-based method used to calibrate it.

Discount Lunar Laser Ranging right away...

David A. Smith


.



Relevant Pages

  • Re: Some Faulty Assumptions of SR
    ... OWLS or TWLS is dependent on the distance of separation between the ... refused to do any direct measurement of TWLS or OWLS. ...
    (sci.physics.relativity)
  • Re: Light Speed
    ... that is not a TWLS measurement. ... Synchronization? ... light speed measurement you can obtain is TWLS. ... I can drive my car a certain distance without the need for TWLS:) ...
    (sci.physics.relativity)
  • Re: Light Speed
    ... that is not a TWLS measurement. ... Synchronization? ... the only light speed measurement you can obtain is TWLS. ... All measurements of *speed* are based on distance. ...
    (sci.physics.relativity)
  • Re: Some Faulty Assumptions of SR
    ... OWLS or TWLS is dependent on the distance of separation between the ... refused to do any direct measurement of TWLS or OWLS. ...
    (sci.physics.relativity)
  • Re: Who is who?
    ... I continue without seeing any TWLS. ... known distance is the more normal way to measure an OWLS. ...  hence a TWLS measurement must result. ...
    (sci.physics.relativity)