Date: Wed, 24 Oct 2001 06:52:42 -0500

Author: Thomas Senior

Subject: Re: Conic Sections - sliced model


Take a large loop, (we have old(?) toys called hulla hoops) and mount it so it can turn on a vertical axis that is also a diameter. You could just hang it by a string. The circle will turn into an ellipse as it turns. 3 to 5 rpm will work well.


Those who can, do.
Those who understand, teach.

Tom Senior
Physics Teacher 847-784-6739
New Trier High School
385 Winnetka Ave
Winnetka, IL 60093

>>> - 10/24/01 6:56 AM >>>
Hi Tappers,
I'm lookin
g for a real physical large scale demo of Conic Sections. It means
a Circle, Parabola, Ellipse and Hyperbola.
I prefer to buy such a model or you might have any suggestion.

Simcha Segev
School of Physics and Astronomy
Tel Aviv University
Tel Aviv 69978
Phone : + 972-3-640 8077
FAX : + 972-3-642 9306
e-mail :