The property of the parabolic shape to reflect all sound symmetrically results in multiple REFLECTIONs known as 'slap echoes' when larger structures have this shape. Sound Example: Multiple ECHOes ...

Parabolic reflectors and ellipsoidal reflectors are used ... Light from one focus passes through the other, after reflection. Ellipsoids collect a much higher fraction of total emitted light than a ...

Also called a "dish" or "mirror," parabolic antennas are used for satellite signals and planetary telescopes. The reflective mirror design can also emit energy such as in a flashlight or ...

Parabolic reflectors are pretty handy devices. Whether you’re building a microwave antenna or a long-distance directional microphone, suitable commercial dishes aren’t that hard to come by.