| Topic: |
Science > Physics |
| User: |
"Udayan" |
| Date: |
14 Aug 2005 11:59:03 AM |
| Object: |
plz answer my simple question... |
Hi all..
there is a question in my mind from last few days..
While travelling in any vehicle ( say train ) , the things near us ie
trees ,poles etc looks to move backwards very fast as compared to those
far away from us .is there any relation with theory of relativity ??
plz answer my question...
warm regards,
UDAYAN
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| User: "CWatters" |
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| Title: Re: plz answer my simple question... |
14 Aug 2005 02:23:01 PM |
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"Udayan" <udayan.warnekar@gmail.com> wrote in message
news:1124038743.660912.118660@o13g2000cwo.googlegroups.com...
Hi all..
there is a question in my mind from last few days..
While travelling in any vehicle ( say train ) , the things near us ie
trees ,poles etc looks to move backwards very fast as compared to those
far away from us .is there any relation with theory of relativity ??
Nothing to do with relativity. It's all to do with angles. If you look at
distant objects with a telescope they also appear to go past just as fast.
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| User: "Androcles Androcles@ MyPlace.org" |
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| Title: Re: plz answer my simple question... |
14 Aug 2005 12:14:50 PM |
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"Udayan" <udayan.warnekar@gmail.com> wrote in message
news:1124038743.660912.118660@o13g2000cwo.googlegroups.com...
| Hi all..
| there is a question in my mind from last few days..
| While travelling in any vehicle ( say train ) , the things near us ie
| trees ,poles etc looks to move backwards very fast as compared to
those
| far away from us .is there any relation with theory of relativity ??
| plz answer my question...
|
| warm regards,
| UDAYAN
Ok, I'll answer it.
No.
Androcles.
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| User: "" |
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| Title: Re: plz answer my simple question... |
14 Aug 2005 12:49:14 PM |
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It does have meaning in the True General Theory of Relativity,
Cybernetics, which deals with the relativity of all systems in the
Universe.
- Farble Bickelbeery
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| User: "Uncle Al" |
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| Title: Re: plz answer my simple question... |
14 Aug 2005 03:26:35 PM |
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Udayan wrote:
Hi all..
there is a question in my mind from last few days..
While travelling in any vehicle ( say train ) , the things near us ie
trees ,poles etc looks to move backwards very fast as compared to those
far away from us .is there any relation with theory of relativity ??
At your speeds, no. Serious relativistic diddles start around 10% of
lightspeed. Even 25-35 kV in large color TV picture tubes requires
relativistic correction because the screen's phosphor dots are such
small targets.
Look at a given local width of visual field and what it encompasses
vs. radius.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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| User: "Androcles Androcles@ MyPlace.org" |
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| Title: Re: plz answer my simple question... |
14 Aug 2005 05:14:45 PM |
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"Uncle Al" <UncleAl0@hate.spam.net> wrote in message
news:42FFA8FB.747227CB@hate.spam.net...
| Udayan wrote:
| >
| > Hi all..
| > there is a question in my mind from last few days..
| > While travelling in any vehicle ( say train ) , the things near us
ie
| > trees ,poles etc looks to move backwards very fast as compared to
those
| > far away from us .is there any relation with theory of relativity ??
|
| At your speeds, no. Serious relativistic diddles start around 10% of
| lightspeed.
[snip crap]
It is known that Maxwell's electrodynamics--as usually understood at the
present time--when applied to moving bodies, leads to asymmetries which
do not appear to be inherent in the phenomena. Take, for example, the
reciprocal electrodynamic action of a magnet and a conductor. The
observable phenomenon here depends only on the relative motion of the
conductor and the magnet, whereas the customary view draws a sharp
distinction between the two cases in which either the one or the other
of these bodies is in motion. For if the magnet is in motion and the
conductor at rest, there arises in the neighbourhood of the magnet an
electric field with a certain definite energy, producing a current at
the places where parts of the conductor are situated. But if the magnet
is stationary and the conductor in motion, no electric field arises in
the neighbourhood of the magnet. In the conductor, however, we find an
electromotive force, to which in itself there is no corresponding
energy, but which gives rise--assuming equality of relative motion in
the two cases discussed--to electric currents of the same path and
intensity as those produced by the electric forces in the former case.
Examples of this sort, together with the unsuccessful attempts to
discover any motion of the earth relatively to the ``light medium,''
suggest that the phenomena of electrodynamics as well as of mechanics
possess no properties corresponding to the idea of absolute rest. They
suggest rather that, as has already been shown to the first order of
small quantities, the same laws of electrodynamics and optics will be
valid for all frames of reference for which the equations of mechanics
hold good.We will raise this conjecture (the purport of which will
hereafter be called the ``Principle of Relativity'') to the status of a
postulate[.]
Phuckwit.
Androcles
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