Drexel dragonThe Math ForumDonate to the Math Forum


Math Forum
 Ask Dr. Math
 Discussions
 Internet Newsletter
 MathTools
 Problems of the Week
 Teacher2Teacher
 Teacher Exchange
 Workshops

Search All of the Math Forum:
Browse our Internet Mathematics Library

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Math Topics » geometry.pre-college.independent

Topic: Hyperbolas in Nature
Replies: 29   Last Post: Mar 24, 2010 6:05 AM

Advanced Search
Reply to this Topic Reply to this Topic

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Brian Hutchings

Posts: 78
Registered: 12/6/04
Re: Hyperbolas in nature
Posted: May 13, 1996 9:11 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

I didn't quite follow the original construction --
where is the Hoola-Hoop (tm) ??... I'd agree with John that, if
you're holding the hoop centered on your head, it's just a circle, as
the visual field is essentially euclidean (there was a nice book
on noneucldidean geometry that mentioned an experiment on this, but
it seemed to get the wrong (opposite) conclusion.... or,
were you making an observation like that, that
any circle in perspective is an ellipse?



"Time is the only dimension." -RBFuller

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2013. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.