In article <477b1419@news.povray.org>, wampler+pov### [at] uwashingtonedu 
says...
> Darren New wrote:
> > You are sitting in a canoe, in a swimming pool, holding a cannon ball i
n 
> > your lap. You throw the cannonball overboard, and it sinks to the 
> > bottom. Does the level of water in the pool go up, go down, or stay the
 
> > same?
> 
> The water goes up (then down again) in a mostly parabolic manner since 
> the bowling ball would make a large splash :-)
> 
> I won't spoil the real answer for anyone still thinking about it, but 
> here's another fun physical puzzle that I remember:
> 
> If you've been on the beach, you've probably noticed that the sand dries
 
> out around you foot when you step on it, why is this?  Wouldn't you 
> expect a small puddle of water to form around your foot instead?
> 
It does get wetter, just *outside* the range of displacement from the 
pressure you apply to the sand. And, if you stand there long enough that 
the grains can rearrange to be less compacted, you *will* end up with 
your puddle.

-- 
void main () {

    if version = "Vista" {
      call slow_by_half();
      call DRM_everything();
    }
    call functional_code();
  }
  else
    call crash_windows();
}

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