Re: TIME TRAVEL IS *POSSIBLE*

"Burney Truckell" <e.t...@virgin.net> wrote:

:
:
:Barry O'Grady <bar...@XacayX.com.au> wrote in article
:<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
:> 
:> 
:
:Could someone please just read Einsteins paper on General and Special
:relativity or find a site with a good explanation.
:
:If you were to travel in a circle and return to earth at 0.5 ls for 1hr,
:2hrs would have passed on earth as your relative speed to earth has dilated
:your timeframe.
  
So your son could end up being older than you? I think not.
  
:I think the times are wrong as dilation is exponential. But the theory
:applies.
:
:And as the galaxy moves through the universe and the sun moves through the
:galaxy and the earth revolves around the sun, and possibly the expansion of
:the univese also everything experiences dilation.
:
:As long as an object moves relative to the fabric of space it experiences
:dilation. In fact the continual motion of the universe and the mass within
:it may be the cause of time itself, as if you are "frozen" as you near ls
:you may experience almost infinite passage of time if you were to stop
:moving relative to the fabric of space.
:
:Relativity is just one of those things that is hard to explain and grasp
:the concept of.
:I hope I have clarified this and not made matters worse
  
I think you have made it clear that you don't understand relativity.
  
I read an article in New Scientist magazine which attempted to 
explain quantum effects by claiming that the magazine did not
exist unless you were looking at it. Needless to say my opinion
of the magazine fell greatly.
  
:Burney Truckell
   
Barry

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