Re: GPS CLOCK PARADOX
- From: "Jeckyl" <noone@xxxxxxxxxxx>
- Date: Sat, 2 Feb 2008 17:41:55 +1100
"snapdragon31" <snapdragon31@xxxxxxxxx> wrote in message
news:37db234d-5b45-4fc5-ba23-a76e14955139@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
The measurement is always on the distance between the Earth and the
star 10c away.
Relative to whom?
Twin S can predict what twin M measures based on S's information.
But twin M cannot predict what twin S measures based on M's
information.
Yes .. they can .. its exactly the same math .. the problem is only that
*you* can't
The information S has : v = 0.995c, x = 10c and
S can predict what M measures : v = 0.995c x' = c and t' = 1.005 years
Based on M's information, why can't M predict what S measures?
M can
One comment on the pole and barn paradox. It can be proved using
logic that length contraction implies that the length of an object
becomes longer (instead of shorter) in the direction of motion.
No .. it cannot. Length *contraction* means length is shorter .. not
longer. If the length did not get shorter, then the longer pole would not
fit in the shorter barn.
.
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