Parabolic reflectors are pretty handy devices ... Maybe a fiberglass radio astronomy dish could be pressure-formed directly with a rig like this?

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 ...

There are better ways to build a radio telescope in your back yard, but the thought of having a gigantic parabolic dish out back, peering into the heavens, has stuck with me. I’ve even designed ...

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 ...