Re: Bomb paradox
From: N:dlzc D:aol T:com \(dlzc\) (net_at_nospam.com)
Date: 11/14/04
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Date: Sun, 14 Nov 2004 09:49:46 -0700
Dear mtm:
"mtm" <nospam.mtm_spm@yahoo.com> wrote in message
news:n5adneTWi5r2fAvcRVn-jg@comcast.com...
> Hi David,
>
> Thank you for reply.
>
> N:dlzc D:aol T:com (dlzc) wrote:
>
>> They are remote from one another, therefore simultaneity for each is
>> different.
>
> That is not corect.
This assertion is unfounded by what you have provided so far.
> Simultaneity mean the 2 clocks synchronised will record
3 clocks, one for each sensor.
> the event at the same time. Into a SR 2 clocks can be make in sync
> (Einstein
> provided 2 methods for that). Therefore, If the clock in S1 record no
> pole
> at the moment T, S2 - pole at T, S3 no pole at T, it means that the pole
> was inside the barn at T in Observer SR.
As I said before, "the Earth is safe".
>> How will number 2 decide that number 1 and number 3 sensors
>> are clear, when light must carry that information to number 2... at
>> (large
>> but)
>> finite speed. And if you run that information in wires, it is slower
>> still.
>
> - Clock syncronization betwen S1,S2,S3.
> - 3 wires with the same length.
> Each sensor send his state continouslly.
> Having the wires of the same length it is a safe bet to assume the signal
> reach the relay at the same time.
Not when atomics are involved! The path those wires take need to be
homogeneous as well. And they should be run in shielded pair to boot.
>> Simply run a high speed camera, and take pictures of the shadow of the
>> barn through the open barn door. At some point you can capture the
>> pole in the picture, inside the barn, and there will be no pole shadow
>> evident on either the near or far side of the barn.
>
> Right. But this is going to happen only in Observer's realm.
> If it is not going to happen, it means the length is not contracting.
But it happens in *all* stationary Observer's realms. The bomb does not go
off for any Observer in the barn's frame.
>> No need to invoke explosives.
>
> Right !!!
> Was used only for the stress out that Runner and Observers seems to live
> in different realms. In one reality an event IT IS going to happen, in
> the
> other NO.
At no time is it going to happen. Unless you move the mechanism into the
pole's frame, at which time two sensors will be blocked, but not the third.
> The bomb was only a mean to draw attention about this aspect.
>
>> And it is all perspective.
>
> You mean we should look at length contraction as an optical ilusion only
> ?
Length contraction is supported by *measurement*. These measurements are
consistent with length contraction, which is predicted by a theory that
includes/requires *perspective*. Perspective that includes 3 axes of
space, and 1 of time, as a single fabric. To shorten one is to
"apparently" lengthen another.
The Earth is safe yet again.
David A. Smith
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