A light rigid structure (of aluminum or other material) which reflects sound to a focus at which a microphone is placed. This focussing effect is very strong with wavelengths less than the aperture of ...

Fitting a simple, passive, parabolic reflector around your router’s antenna can focus the signal exactly where you want it. Your network will reach farther, and the addition can even improve your ...

DENVER - Abengoa Solar is building large-scale parabolic trough solar installations in Arizona, at a facility operated by the U.S. Department of Energy (DOE), and in New York, for piano maker Steinway ...

Concentrating Solar Power (CSP) systems employ lenses or mirrors coupled with tracking systems to concentrate a large area of sunlight into a small beam, rather in analogy with the simple and familiar ...

Scientists in Morocco have designed a new bifacial module with a cooling system, based on bifacial parabolic solar cells that are connected to each other via tubes for panel cooling. They are now ...

For the longest time now, I’ve wanted to build a real, proper radio telescope. To me, this means a large parabolic reflector, a feed horn made of brass sheet, coat hanger wire, and at least for the ...