Multiple echoes produced under a parabolic bridge, Stanley Park, Vancouver, B.C. The source sound is a stick hitting a metal can in the first case, and hand claps in the second.

Whether in the context of quadratic functions, parabolic mirrors or alternative energy designs like solar cookers, the parabola holds a special place in science and mathematics — particularly ...

Sound Example: Multiple ECHOes produced under a parabolic bridge, Stanley Park, Vancouver, B.C. The source sound is a stick hitting a metal can.