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Re: How parabolas really work

Subject: Re: How parabolas really work
From: Marty Michener <>
Date: Tue, 25 Feb 2003 10:35:12 -0500

A belated note:  I just found my old illustration diagrams from when this
group started up, and posted them on my website.

This shows how a "sound lens" would make red and green images from red and=

green frogs.
http://www.enjoybirds.com/howitworks/lensfocs.gif

This shows a red and green frog being heard by red and green microphones
near a parabola.
http://www.enjoybirds.com/howitworks/focus2dsh.gif

my best regards,

Marty Michener
MIST Software Associates PO Box 269, Hollis, NH 03049

EnjoyBirds.com  - Software that migrates with you.    http://www.EnjoyBirds=
.com



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