Re: Three Ring Circus


skearney@xxxxxxxxxxxxx wrote:
> Please check out Einstein's writing on the 'behavior of clocks and
> measureing rods on a rotating body of reference', chapter 23.
> treats the outside edge of the disk the same as linear motion as far as
> gamma is concerned. For a track ring four light years in diameter the
> g force on the train would be slightly less than one.
> The maglev track
> could be reinforced to handle this. The material requirements would
> require the resources of many solar systems, but the limits of the
> materials would not be exceeded.
> Do you have any objections to the relativistic addition of
> velocities?
Use Fresnel-Fizeau moving media if you want your
fibre optic gyro to work.
> The question still remains, how do you reconcile the
> measurements made by an observer on one of the trains with an observer
> stationary to the track?
You do it the same as always. Normalize all the path
delays (simulating equal length cables) and they
both see the same thing.

But that is not the point. Special Relativity develops a
co-ordinate system to show a resolution of Maxwell's
retarded potentials by use of an imaginary
time axis:
http://farside.ph.utexas.edu/teaching/em1/lectures/node46.html

General Relativty adjusts the imaginary time so it
conserves mass and energy equivalence.
http://en.wikipedia.org/wiki/Noether's_theorem
.... or it seems to. LOL
http://en.wikipedia.org/wiki/History_of_general_relativity

Again... Einstein was neither a good inventor nor
a good cartoonist. 'Try to understand how he
resolves Maxwells time independant equations
with Maxwells time dependant equations in SR.
Then you'll have a good foundation to follow his
attempts to develop field equations to relate inertia
and gravity.

http://farside.ph.utexas.edu/teaching/em/lectures/lectures.html

This is not something easy to grasp from cartoons
and gedankens so keep this handy.
http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm

Regards,
Sue...

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