Kind of random enjoyable wiki article that was featured today about Villarceau Circles, which are "...are a pair of circles produced by cutting a torus diagonally through the center at the correct angle. Given an arbitrary point on a torus, four circles can be drawn through it. One is in the plane of the torus. Another is perpendicular to it. The other two are Villarceau circles, usually not coplanar. They are named after the French astronomer and mathematician Yvon Villarceau (1813–1883)."

[ READ THE ARTICLE ]

This entry was posted on Monday, January 08, 2007 at 2:18 PM. You can skip to the end and leave a response.