# Intersecting cylinders

The special exhibit

Visual Science in the Harvard Science center (2nd floor) shows a nice model of
two intersecting cylinders. The intersection of two cylinders of the same
radius has already been studied by Archimedes. When taking two arbitrary
cylinders, the intersection curve can become much more interesting. In this
example, one sees a variant of the Viviani curve, an algebraic curve which has the shape of a figure 8.

Also a nice figure of a hyperboloid: