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> Length Contracted Earth Diameter?, actual vs apparent contraction
mik
Posted: Yesterday at 9:23 PM


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QUOTE (Confused1 @ May 23 2013, 08:15 PM)
Do you accept the logic of time dilation as an inevitable consequence of the speed of light being the same in every frame? More generally the laws of physics are the same in every frame where the laws of physics apply to everything except god - so that's everything. The constant speed of light is just one manifestation of 'everything'.
Imagine for a moment that you do.
For convenience let's say our clocks are twice as fast as the ones in the moving frame (ie moving relative to 'us').
So 1 second in our frame is half a second in the moving frame.
In one second in our frame light travels 186,000 miles.
In one of 'our' seconds how far does the light travel in the moving frame?
With your IQ you should be able to read this off the diagram here:-
http://www.physforum.com/index.php?showtop...ndpost&p=605691
or not, as the case may be.
-C2.

You did remain too confused to understand my last post. I was not wrong.
Same applies to your lack of understanding of the challenge of this whole thread.

Start with realism, granting that 'the world' exists independent of how we measure its dimensions of specific objects and the "time that passes" as things move. After all, the cosmos was here as manifest objects distributed in space long before our science of measurement. So first contemplate that until you get it.

You repeat the dogma that ' the laws of physics are the same in every frame' but you fail to realize that the laws of physics form cosmic bodies in general to be nearly spherical and no 'laws of physics" pertaining to how images are conveyed to high speed observers change those laws. The same laws of physics require that all physical objects stay as they were formed or built until some force is applied to change, as in 'shrink' them. You remain oblivious to this law of physics.

Then ask yourself "What 'dilates?' in the above context. Clocks do slow down in rate of "timekeeping" the faster they travel relative to a 'home base' clock (or the deeper in a gravity field). What 'expands' as that happens?, or am i again way over your head already?

Now, regarding the second paragraph: Since Earth was already formed as a near sphere (according to gravity... a law of physics that doesn't give a damn about different frames of reference)... long before theories about fast frames getting different measurement of it... explain the logic and the physics of physical length contraction of earth's diameter. Or do you believe that various acts of observation change, as in shrink planet earth?

If you don't believe that, then just admit that contraction of earth's diameter could only be *apparent*, not *actual* physical contraction.
If you blow that off without a logical rebuttal, we are done.
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xyzt
Posted: Today at 12:15 AM


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QUOTE (mikimbecile @ May 23 2013, 09:23 PM)
You did remain too confused to understand my last post. I was not wrong.

Insane crackpots are never wrong.

This post has been edited by xyzt on Today at 12:15 AM
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azo
Posted: Today at 3:44 AM


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C2


Contraction cannot be physical because if the ship physically contracted the clock would not tick slower with velocity. The clock path length would shorten to the exact amount as the Lorentz contraction and never slow down. Photons travel outside of the clock at the same angle as inside the clock. Photons travel behind the carriage at relativistic speeds. You always view everything by the hypotenuse. Its the extra length that corrects for the slow clock not the contracted path length in the slow clock. You are looking at it backwards if you think the carriage and platform physically shrink.
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