Re: What are the SR predictions for these experiments??

From: Rudy Drabek (erdrXs_at_aon.at)
Date: 03/09/05 

Date: Wed, 09 Mar 2005 10:22:13 +0100

kenseto schrieb:
> "PD" <pdraper@yahoo.com> wrote in message
> news:1110307489.283383.183040@l41g2000cwc.googlegroups.com...
>
>>kenseto wrote:
>>
>>>"Rudy Drabek" <erdrXs@aon.at> wrote in message
>>>news:422d7350$0$17816$91cee783@newsreader01.highway.telekom.at...
>>>
>>>>kenseto schrieb:
>>>>
>>>>>"Rudy Drabek" <erdrXs@aon.at> wrote in message
>>>>>news:422ccfdc$0$32222$91cee783@newsreader02.highway.telekom.at...
>>>>>
>>>>>
>>>>>>kenseto schrieb:
>>>>>>
>>>>>>
>>>>>>>"PD" <pdraper@yahoo.com> wrote in message
>>>>>>>news:1109967267.935607.214460@g14g2000cwa.googlegroups.com...

snip
>>
>>>>So in this special case, how the marking of the distance is done,
>>>>is of importance.
>>>
>>>You are making too much out of nothing. Besides, the physical length
>>of a ruler at its rest frame will remain unchanged after it is drawn out.

>>Also in SR length contraction is not real. It a the projection of a ruler
>>that is foreshortened. A ruler will return to its physical original length
>>after traveling. Besides we can mark the distances with a meter rod.
>>
>>You have no idea what SR says about distance measurement.
>>
>>PD

Dear PD pls explain, where I am wrong. We are waiting.
If I take a 1m rod or a draw out ruler makes no difference.
You have to stick to one frame in any case.
Changing frames without correcting the numbers is IMO a failure.
See Lorentz.

You must not forget, that speed is a derived value. Only s and t are
basic values. And s and t is different in the rest and moving frame. Sorry!

But may be we get assistance from an approved expert.

Rudy
>
>
> So what does SR say about measuring distances in your own frame??
>
> Ken Seto
>
>>>
>>>>The best way to solve this exp. is to say that both clocks -always
>>in sync from theory- have a built in wound (winded?) up ruler that
>> is drawn out during movement of the clocks.
>>Then you measure -at the clocks- the distance you have moved.
>>
>>>>And you do it in the moving frame.
>>>>And after stopping at the rated the distance, it is not the same as
>>>>drawn out at the unrolling -marking- procedure.
>>>>
>>>>In any case one can see, that v*v/(2c*c) is about 0,75 e-24, so the
>>>>differences are only of academic value and beyond accuracy of any
>>>>measurement I know.
>>>>
>>>>Rudy
>>>>
>>
>
>

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