🚀 go-pugleaf

> http://www.amazon.com/Relativity-Its-Roots-Banesh-Hoffmann/dp/0486406768
> "Relativity and Its Roots" by Banesh Hoffmann, Chapter 5.
> (I do not have the text in English so I am giving it in French)
> Banesh Hoffmann, "La relativite, histoire d'une grande idee", Pour la
> Science, Paris, 1999, p. 126:
> "Dans un cas, je compare votre horloge a deux des miennes; dans
> l'autre, vous comparez la mienne a deux des votres; ceci permet a
> chacun de nous d'observer, sans absurdite, que l'horloge de l'autre
> est plus lente que la sienne."
>
> Translation from French: "In one case, I compare your clock with two
> of mine; in the other case, you compare my clock with two of yours:
> this allows each of us to observe, without absurdity, that the clock
> of the other is slower than his own."
>
> The following observer has two clocks placed on the periphery of a
> rotating disc, and is going to compare them with a single non-rotating
> clock (at rest):
>
> http://www.bartleby.com/173/23.html
> Albert Einstein (1879-1955).  Relativity: The Special and General
> Theory.  1920.
> XXIII.  Behaviour of Clocks and Measuring Rods on a Rotating Body of
> Reference
> "An observer who is sitting eccentrically on the disc K' is sensible
> of a force which acts outwards in a radial direction..."
>
> The only difficulty comes from the fact that the two rotating clocks
> are not inertial. However, by increasing the diameter of the disc
> while keeping the linear speed of the periphery constant, one can make
> them virtually inertial.

> That is, Einsteinians will make two simple modifications in Einstein's
> rotating-disc experiment:
>
> 1. The non-rotating clock (at rest in K) is no longer placed at the
> center of the disc; rather, it is outside the disc but close to the
> rotating periphery where it can be directly compared with passing
> rotating clocks fixed on the periphery.
>
> 2. Einsteinians will increase the diameter of the disc while keeping
> the linear speed of the periphery constant. So clocks fixed on the
> rotating periphery will become virtually inertial.
>
> The two modifications will allow Einsteinians to prove, in accordance
> with Einstein's 1905 light postulate, both:
>
> 1. that rotating clocks run slower than non-rotating clocks.
>
> 2. that non-rotating clocks run slower than rotating clocks.
>
> Finally, Einsteinians will see in the dictionary what REDUCTIO AD
> ABSURDUM means.

Einsteinians will also try to discover if REDUCTIO AD ABSURDUM has
something to do with the fact that hypnotists in Einstein criminal
cult can trap a long train inside a short tunnel:

http://www.youtube.com/watch?v=VSRIyDfo_mY&mode=related&search=

and also a 80m long pole inside a 40m long barn:

http://www.math.ucr.edu/home/baez/physics/Relativity/SR/barn_pole.html
"These are the props. You own a barn, 40m long, with automatic doors
at either end, that can be opened and closed simultaneously by a
switch. You also have a pole, 80m long, which of course won't fit in
the barn....So, as the pole passes through the barn, there is an
instant when it is completely within the barn. At that instant, you
close both doors simultaneously, with your switch. Of course, you open
them again pretty quickly, but at least momentarily you had the
contracted pole shut up in your barn."

Pentcho Valev
pvalev@yahoo.com