Applications
Conic sections are important in astronomy: the orbits of two massive objects that interact according to Newton's law of universal gravitation are conic sections if their common center of mass is considered to be at rest. If they are bound together, they will both trace out ellipses; if they are moving apart, they will both follow parabolas or hyperbolas. See two-body problem.
In projective geometry, the conic sections in the projective plane are equivalent to each other up to projective transformations.
For specific applications of each type of conic section, see the articles circle, ellipse, parabola, and hyperbola.
For certain fossils in paleontology, understanding conic sections can help understand the three-dimensional shape of certain organisms.
Read more about this topic: Conic Section