When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Jay Holben The next in line on our examination of lighting fixtures is the PAR, which is an ...

Parabolic reflectors are found everywhere. They're on dish antennas for television reception, in radar systems, in long distance microphones, and heaven only knows where else. They have the property ...

My neighbhor is a environmentalist type person and is trying to contstruct a solar water heater type thing by building some parabolic reflectors. He's a carpenter so he's got most of the contruction ...

Parabolic reflectors for solar applications are nice stuff, and making your own is a great project in itself. One of the easiest ways we have seen is that of [GREENPOWERSCIENCE], who uses nothing more ...

Researchers have designed a new LED-based train headlight that uses a tenth of the energy required for headlights using conventional light sources. If operated 8 hours every day, the electricity ...

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 ...