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        riddles >> general problem-solving / chatting / whatever >> Cool Graphs, etc
        
(Message started by: Benoit_Mandelbrot on May 21^st, 2004, 9:24am)

Title: Cool Graphs, etc
Post by Benoit_Mandelbrot on May 21^st, 2004, 9:24am

I've recently discovered, with the CAD program at school, that I can create a tangent circle to two radi to a larger circle, and be tangent to the circle. Here is the attached picture. The green lines are the construction lines. The white lines are the actual lines. The trick is to create the tangent circle with only a straight edge and a compass.

Title: Re: Cool Graphs, etc
Post by Benoit_Mandelbrot on May 28^th, 2004, 9:20am

This is a horn torus.

Title: Re: Cool Graphs, etc
Post by Benoit_Mandelbrot on May 28^th, 2004, 9:26am

Here is a curled sphere that I've accidently discovered.

Title: Re: Cool Graphs, etc
Post by THUDandBLUNDER on May 29^th, 2004, 4:03am

Some really kewl surfaces can be found here (http://www.coolphysics.com/4d/the_main_gallery.htm).

My favourite is Boy's Surface.