POV-Ray : Newsgroups : povray.off-topic : Nice reflective sphere ... : Re: Nice reflective sphere ... Server Time
5 Sep 2024 07:20:38 EDT (-0400)
  Re: Nice reflective sphere ...  
From: clipka
Date: 13 Oct 2009 21:01:58
Message: <4ad52306$1@news.povray.org>
Warp schrieb:
> 
>   Think about two small spheres connected by a wire on the surface of a
> balloon: Even if you inflate the balloon, the wire will keep the spheres
> at the same distance from each other, against the separating force caused
> by the inflation of the balloon.

Two spheres connected with a rubber band would be a better analogy: 
While you inflate the balloon, the rubber band would keep the spheres at 
a /constant/ distance, but it would be a different one than if the 
balloon wasn't being inflated.

And the rubber band would be stretched even further if you'd increase 
the rate of inflation.

>>>   The same is true at macroscopic levels: The Earth is not expanding because
>>> atomic bonds and gravity are strong enough to stop any expansive drift from
>>> happening. 
> 
>> It doesn't stop the drift. It compensates for the drift.
> 
>   Terminology.

Not if you think of /changing/ parameters. In that case it starts 
becoming a fundamental difference.


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