Starting from the equation of a circle, the video takes the viewer to understand how an equation is related to the geometrical object it relates to.  By rearranging the equation, a new interpretation of the equation is presented, and how it can be transformed to an equation of an ellipse is shown.  Although this is by no means how the equation of an ellipse is derived, it gives an interesting perspective to viewers who are not heavy in mathematical background.  Given this interpretation of the euqation of the ellipse, the equation that leads to a closed curve which looks like an egg will become clear and easily understood even by people who are not mathematically inclined.