Invisible schrieb:
> ...all of which is true. However, a simple experiment with a wavetank 
> quickly demonstrates that, for some reason that I don't comprehend, 
> large waves won't go through small gaps, and yet small waves will. This 
> is the precise opposite of what you would expect, but the results are 
> clear.

Hum... I hate to admit this, but it seems you're right: I just hacked 
together a POV-Ray script to simulate a wavetank-kind-of-apparatus (very 
idealized, but still...), initially to disprove your statement - only to 
find that indeed small gaps will not let low-frequency waves pass. 
Changes in gradient will pass through - but not oscillations.

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