Parabola or hyperbola

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From: Mark Lawton (markslawton@hotmail.com)
Date: Wed Jan 07 2004 - 18:58:56 PST

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Date: Wed, 07 Jan 2004 18:58:56 -0800
Subject: Parabola or hyperbola
From: Mark Lawton <markslawton@hotmail.com>
Message-ID: <BC220770.5396%markslawton@hotmail.com>

Hi Pinholers,

When I did the TI a few summers ago there was an exhibit or snack of a stick
being rotated in such a way that it could pass through a hyperbolic or
parabolic slot (don't remember which). I am looking for the directions to
build this snack but can't find it on the web. Any info would be helpful.

Thank you
Mark Lawton

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