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Old February 9th 06 posted to sci.physics
OG
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Default Speed gedanken time (repaired) time dilation 099


"Spaceman" wrote in message
...
(repaired version thanks to OG)
Lets suppose we have a flat surface that is
as far as we know infinite in length and width.

We mark a line and call it the 0 point.
we then mark lines that are 1 mile away from
this 0 point so we will have parallel lines every 1 mile.

An observer stays at the 0 point (A)
a second observer is in a spaceship (B)
traveling at at .5c and the clock that is
at the 0 point(A) starts when it (B) passes the 0 point.
According to basic math and the clock at observer (A)
position, the object will pass by the 93,000th line in 1 second.
and the 186,000th line in 2 seconds
etc...
(silly basic math)

so...

( I think it is all stated correctly this time..)
How many lines would (B) pass if using time dilation
as a physical fact for (B) according to SR.


in 1 second - it would pass 93000 lines - however the observer in (B)
wouldn't agree that the lines are 1 mile apart.


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