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Andro,

Fool me once, shame on you; fool me twice, shame on me.

 Gordon Stangler
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	 More options Jun 12, 4:08 pm
Newsgroups: alt.morons
From: Gordon Stangler <gordon.stang...@gmail.com>
Date: Fri, 12 Jun 2009 14:08:39 -0700 (PDT)
Local: Fri, Jun 12 2009 4:08 pm
Subject: Re: EINSTEINIANA AND REDUCTIO AD ABSURDUM
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On Jun 12, 3:53 pm, "Androcles" <Headmas...@Hogwarts.physics> wrote:

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> "Gordon Stangler" <gordon.stang...@gmail.com> wrote in message

> news:3b0f30a7-88c3-4376-8338-fe9f2352980c@g15g2000pra.googlegroups.com...

> > Pentcho,

> > In one frame, the pole is length contracted to fit inside the barn,
> > and the barn doors are closed simultaneously, trapping the pole
> > inside.  The doors are then opened, allowing the pole to pass through.

> > In the other frame, the barn is length dilated, but the barn doors are
> > closed, first one, then the other, and opened one after another,
> > <different times>.  We have to drop simultaneity in order to get the
> > pole through the barn.
> > Hope this helps.

> Suppose the length of the barn is 10m, and the length of the
> pole is also 10m when at rest in the barn.
> Being a barn, it is closed at one end and the door is closed
> as the pole enters. It will fit when at rest.

>  Calculate the length of the pole when moving at 0.866c.

> xi = (x-vt)/sqrt( 1-v^2/c^2)
>  http://www.androcles01.pwp.blueyonder.co.uk/Smart/x'=x-vt.gif

> xi = (10m)/sqrt (1-0.866^2/1^2)
>  = (10m)/sqrt (1-0.75)
>  = (10m)/sqrt (0.25)
>  = (10m)/0.5
>    = 20m
> It will not fit until it is brought to a sudden stop.

> Your idiot drool doesn't help at all, you are a fuckwit.
> Why do you incompetent fuckin' lunatics call it length
>  "contraction"?

You multiply by gamma inverse to get length contraction, gamma to get
time dilation.
xi = 10m * sqrt(0.25) = 10m * 0.5 = 5m

I posit that you are deluded, or willfully ignorant of basic
mathematics and dimensional analysis.  I doubt that you can't even
hold a conversation without resorting to childish insults.