Re: twin patadox question

In sci.physics.relativity, Androcles
<Androcles@xxxxxxxxxxx>
wrote
on Tue, 30 Aug 2005 17:08:22 GMT
<ao0Re.62384$Il.30564@xxxxxxxxxxxxxxxxxxxxxxxxx>:
>
> "The Ghost In The Machine" <ewill@xxxxxxxxxxxxxxxxxxxxxxx> wrote in
> message news:hardu2-08c.ln1@xxxxxxxxxxxxxxxxxxxxxxxxxx
> | In sci.physics.relativity, Androcles
> | <Androcles@xxxxxxxxxxx>
> | wrote
> | on Tue, 30 Aug 2005 09:30:28 GMT
> | <UGVQe.41704$jr4.2303@xxxxxxxxxxxxxxxxxxxxxxxxx>:
> | >
> | > "The Ghost In The Machine" <ewill@xxxxxxxxxxxxxxxxxxxxxxx> wrote in
> | > message news:mntnt2-lon.ln1@xxxxxxxxxxxxxxxxxxxxxxxxxx
> | > | In sci.physics.relativity, slefkowit@xxxxxxx
> | > | <slefkowit@xxxxxxx>
> | > | wrote
> | > | on 29 Aug 2005 10:01:28 -0700
> | > | <1125333294.553585.309380@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>:
> | > | > The usual explanation (as I understand it) as to why the twin
> | > paradox
> | > | > is not really a paradox is that one twin experiences
> acceleration
> | > and
> | > | > the other doesn't.
> | > |
> | > | To the point of squishing him or her flat, yes.
> | > |
> | > | Consider that c = 3 * 10^8 m/s and that the normal
> | > | tolerance of humans is about 10 g or 100 N/kg. Divide
> | > | the two and one gets 3 * 10^6 s -- about a month at
> | > | a *very* brutal acceleration that experienced fighter
> | > | pilots tolerate for maybe some seconds.
> | > |
> | > | If one goes the more genteel 1 g = 9.805 N/kg, one
> | > | gets a time interval of just short of a year.
> | > |
> | > | All this is assuming Newtonian mechanics, which isn't quite right;
> | > | were one to add 1/2 m c^2 to a particle of mass m, the actual
> | > | velocity would be on the order of sqrt(1-(1/(1+0.5))^2) = .74536
> c.
> | >
> | >
> | > Bean counting again, dingbat?
> | > Have a hill of beans to count.
> | > gamma Desired velocity
> | > 1 0.000000000000000
> | > 10 0.994987437106620
> | > 100 0.999949998749938
> | > 1000 0.999999499999875
> | > 10000 0.999999995000000
> | > 100000 0.999999999950000
> | > 1000000 0.999999999999500
> | > 10000000 0.999999999999995
> | >
> | > Androcles
> | >
> |
> | He asked within the SR context ("twin paradox"), he got an answer
> | using SR.
> |
> | The real truth of the matter is: we don't know, at least for humans.
>
> Twin paradox is an obvious reductio-ad-absurdum that SR is
> bull***. None of these velocities are ever measured.
>
> gamma Desired velocity
>
> 10 0.99
> 100 0.99
> 1000 0.99
> 10000 0.99
> 100000 0.99
> 1000000 0.99
> 10000000 0.99
>
> Androcles.
>

Not even in muon storage rings?

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