Re: Building a Light Clock
From: jahn (susysewnshow_at_yahoo.com.au)
Date: 12/03/04
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Date: Fri, 3 Dec 2004 00:02:11 -0500
"Androcles" <dummy@dummy.net> wrote in message
news:TrRrd.78936$38.55412@fe2.news.blueyonder.co.uk...
>
> "jahn" <susysewnshow@yahoo.com.au> wrote in message
> news:319c0tF388m2aU1@individual.net...
> >
> > "Androcles" <dummy@dummy.net> wrote in message
> > news:xbJrd.77462$38.25857@fe2.news.blueyonder.co.uk...
> >>
> >> "jahn" <susysewnshow@yahoo.com.au> wrote in message
> >> news:318k6rF39blupU1@individual.net...
> >> > [snip]
> >> >
> >> > I've already placed an order with him for a baker's dozen
if
> > he
> >> > can demonstrate it slows with motion through air. ;-)
> >> >
> >> > Sue...
> >>
> >> Sure I can, if YOU you can provide a wind tunnel with an air
> > velocity
> >> of 750 tornadoes, i.e. v = 0.0001c.
> >> I've already quoted a discount price of $20,000, 80% off
> > Roberts'
> >> price,
> >> so I'll accept your 10% deposit of $26,000 and commence
work
> >> immediately.
> >>
> >> Androcles.
> >
> > When you think about it...
> > Visible light is that last thing you want
> > to use for such a clock because all your
> > construction materials are resonant whether you
> > like it or not. That is probaby why SUMO is
> > a microwave cavity.
> > Sue...
>
> This was a thought experiment that produced the
> anticipated result. I'm getting quite good at them.
> The Andersen Transforms were perhaps my favourite,
> I argued that
> tau = (t+vx/c^2)/sqrt(1+v^2/c^2)
> (note the 'plus' in the denominator) knowing Andersen
> would quickly prove me wrong. I obtained
> "That is, we can reverse the directions of the frames
> which is the same as interchanging the frames,
> which - as I have told you a LOT of times,
> OBVIOUSLY will lead to the transform:
> t = (tau-xi*v/c^2)/sqrt(1-v^2/c^2)
> x = (xi - v*tau)/sqrt(1-v^2/c^2)
> or:
> tau = (t+xv/c^2)/sqrt(1-v^2/c^2)
> xi = (x + vt)/sqrt(1-v^2/c^2)" -Paul B. Andersen
>
> and got the plus right where I wanted it.
> Never again will Andersen use his "mutual time dilation"
> argument.
> As for this one, Brown has now declared neither arm
> of MMX is Lorentz contracted.
> That's good enough for me, now I can quote him on it.
> He's got the hump now, knowing he's defeated, and
> so he has run away, plonking me. Serves him right too,
> he's been flaming me for years, but I can out-flame him
> and out-think him. Using naughty words upsets him,
> but no scientist would let bother them. Uncle Al does
> it to me and I'm not fazed by it. Brown doesn't think
> with his head, he's too emotional.
>
> Androcles.
>
ROFL
Eh! They are right ... It should slow.
<<Titanium has a coefficient of thermal expansion of 5.2 x 10^-6
(a
positive number, so it expands with increasing temp).
The SR-71 lengthens by about 12 inches at it's design cruise Mach
number of 3.0.
The only aircraft that grows more in length due to aerodynamic
heating
is the Concorde (aluminum structure, coefficient of thermal
expansion
is 22 x 10^-6), which at the end of it's Mach 2.0 heat cycle, is
about
18 inches longer than when it took-off.
>>
http://yarchive.net/air/sr71.html
;-) Sue...
>
>
>
>
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