Reflections from a Paraboloid

Explanations 2

• Given a point, called the focus, and a line not containing the point, called the directrix, a parabola is defined to be the set of all points in the plane determined by the focu…

  By Sujay Kazi

• A paraboloid has the special property that any light ray from infinity has the same path length if it passes through the focus of the paraboloid.

  By Guo Yulong