Re: TIME TRAVEL IS *POSSIBLE*

sKorn's News wrote:
> 
> Barry O'Grady wrote in message <364...@news.acay.com.au>...
> >John W Kennedy <rri...@ibm.net> wrote:
> >
> >:Barry O'Grady wrote:
> >:> You forget that the imagined time dilation is relative. So when you
> travel
> >:> away from earth at high speed you gain 10 minutes, but you lose it the
> >:> moment you stop. But theres more. When you travel away from earth at
> >:> light speed the earth is moving away from you at light speed. So you
> >:> gain 10 minutes but then so do the people on the earth. So you gain
> >:> nothing.
> >:>
> >:> There is only one time and that is now.
> >:
> >:No.
> >:
> >:You are incorrectly generalizing Special Relativity, the equations of
> >:which apply as they stand only to the special case of objects
> >:permanently moving at constant speeds in straight lines.
> >
> >Even when you are standing still you are moveing away from some objects
> >at high speed and at the same time you are moveing towards some other
> >objects at high speed. How do you account for that?
> >
> >:You do _not_
> >:"lose [accumulated time dilation] when you stop," and if you turn around
> >:and come back to Earth at the same high speed at which you left, you
> >:will find that you have gained a total of 20 minutes, the difference
> >:being that you accelerated and Earth (barring the negligible effect from
> >:the Earth's orbit being an ellipse, not a straight line) didn't.
> >
> >When you accelerate relative to the earth the earth accelerates relative
> >to you. Therefore the people on earth also gain 20 minutes. How do you
> >account for that?
> >
> >Barry
> >
> So what is an abject in space (A monolith lightyears in legnth were to begin
> spinning until the edges reached light speed, what then?  Do the edges go
> through time slower?  What would happen?

Yes, because they'd be under constant acceleration (they're not moving
in straight lines).  Intense gravity fields also slow time, and the
pseudogravity produced by rotation also counts.

-- 
-John W. Kennedy
-rri...@ibm.net
Compact is becoming contract
Man only earns and pays.  -- Charles Williams

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