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The Reason for Time Dilation



 
 
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  #61  
Old January 31st 08 posted to sci.physics.relativity
Thomas Heger[_2_]
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Posts: 468
Default The Reason for Time Dilation



Yeup .. that's what SR says as well

It sounds like you agree with SR then .. which was my point

Of cause I do. The point is, SR leads you to convert one observation into
the other. It's easy to get lost in the relationships. It's only more
convenient to think of selfcentered objects, but you are not restricted to
do so. SR is more like a triangle: one observer, one object moving, one
reference frame. It is easier to center the observer in the reference frame.
This is more ART like. If you think about curved spacetime, you think more
about time than about space. Space is what you get, when you define space as
part of spacetime happening at the same time.

Thomas Heger


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  #62  
Old January 31st 08 posted to sci.physics.relativity
Jeckyl
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Posts: 8,421
Default The Reason for Time Dilation

"Thomas Heger" wrote in message
...


Yeup .. that's what SR says as well

It sounds like you agree with SR then .. which was my point

Of cause I do. The point is, SR leads you to convert one observation into
the other.


Physics is not terribly interesting if everything is at rest wrt everything
else

It's easy to get lost in the relationships. It's only more convenient to
think of selfcentered objects, but you are not restricted to do so. SR is
more like a triangle: one observer, one object moving, one reference
frame. It is easier to center the observer in the reference frame.


That is what one does in many of the thought experiments .. of course, SR
isn't limited to just that sort of case. And, of course, the crackpots and
nutters try to find various weird combinations of frames and observers in
order to get something they thiink will make hte whole thing unravel.

This is more ART like. If you think about curved spacetime, you think more
about time than about space. Space is what you get, when you define space
as part of spacetime happening at the same time.


Yeup


  #63  
Old January 31st 08 posted to sci.physics.relativity
Jimmy
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Posts: 12
Default The Reason for Time Dilation

OK heres AN OPEN WINDOW.......

What if our measurements of time are compleatly wrong? We base it on
the calander and the sun and moon amonst other things, which is good
for knowing when to go to work, but on a universal scale I would think
the rate of expansion is a more "sensable" method of determining time.
I need one of those "good textbooks" so I can learn the math and rerun
the calculations. Any suggestions on where I can find the guidance to
get a good start?

Star
  #64  
Old January 31st 08 posted to sci.physics.relativity
Jeckyl
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Posts: 8,421
Default The Reason for Time Dilation

"Jimmy" wrote in message
...
OK heres AN OPEN WINDOW.......

What if our measurements of time are compleatly wrong?


It doesn't really matter if they are 'wrong' (whatever that means) .. as
long as we measure them consistently. Reality is what we measure it to be.

We base it on
the calander and the sun and moon amonst other things,


No .. although our calendars are based on the movement of sun and earth
(which makes sense), we base our unts of time on the frequency of radiation
from a specific type of caesium atom under specified conditions.

which is good
for knowing when to go to work, but on a universal scale I would think
the rate of expansion is a more "sensable" method of determining time.


Not really .. too hard to measure.

I need one of those "good textbooks" so I can learn the math and rerun
the calculations. Any suggestions on where I can find the guidance to
get a good start?


For an informal starting point, try wikipedia .. read the articles and
follow the reference links. On the whole the wikipedia articles on physics
and math are quite reasonable (not perfect, of course). Or you could try
going to a library or book shop .. they have books there, you know.


  #65  
Old February 1st 08 posted to sci.physics.relativity
bz
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Posts: 1,613
Default The Reason for Time Dilation

"Jeckyl" wrote in news:13q21tiofgafia3
@corp.supernews.com:

changing your nickname (why *did you do
that anyway) has not done anything to your idiocy.



The trolls change their names so they can pop out of our kill files for a
post. Mildly annoying.

On the other hand, those that FEED the trolls [respond to them in any way,
as you continue to do], keep encouraging them AND making their nonsense
visible to those of us that would rather just ignore them completely.
More than MILDLY annoying!

Please stop feeding the trolls! They will then 'starve to death' [go
elsewhere to annoy someone else].

For example, you keep feeding the 'tha' troll as it pops up under again and
again under different names. Don't you recognize their writing style by
now? They start with a provocative title and a question that is half
intelligent and have stupid. When someone tries to answer as if it were a
serious question, they make fun of them and call them 'stuuupid' and other
things. Yet you keep conversations going with them, wasting everyones time.

Please stop.



--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

remove ch100-5 to avoid spam trap
 




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