Re: Can the Special Theory of Relativity be "explained"

On Jun 26, 3:18 am, "Androcles" <Headmas...@xxxxxxxxxxxxxxxx> wrote:
"Ray Vickson" <RGVick...@xxxxxxx> wrote in message

news:ac242691-556b-44b6-aea8-1d40ec39549d@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| On Jun 25, 9:50 am, andy everett <vze2q...@xxxxxxxxxxx> wrote:
| > Is there a possible visualization of our Universe from which Laws of
| > Nature such as Einstein's Special Theory of Relativity might be implied.
| >
| > Thank you for any thoughts.
|
| Yes. There are several derivations of the Lorentz transformation,
| based on the following assumptions.
| Consider two "inertial" frames of reference, with frame F' moving at
| velocity v wrt F, along their common x-axes. Assume
| (1) The quantities (x',y',z',t') in frame F and (x,y,z,t) in frame F
| are related linearly.
| (2) y' = y and z' = z (i.e., rulers perpendicular to the motion remain
| unchanged in length; this is almost required by the fact that a moving
| ruler and a stationary ruler can everywhere coincide at an instant if
| they are oriented perpendicular to their motion.)
| (3) There is no preferred direction.
| (4)IIf clocks beat faster or slower

Why would anyone make that absurd assumption?

The assumption said "if", not "is": we merely allow for the
possibility, without claiming its truth one way or another. Then, one
derives that the world has *either* Galilean *or* Lorentzian
behaviour. Note that classical, Galilean behaviour is perfectly
compatible with ALL the assumptions. However, there is *another*
solution, namely, SR. The argument is essentially saying that those
are the ONLY TWO possibilities. After that, experiment must enter the
picture to decide between the two.

R.G. Vickson

IIf you assume the world is flat, then you can derive a flat world.
Such arguments are circular.

.

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