Parabolic microphones blend geometry with acoustics to enable long-distance sound capture with surprising clarity.

Learn how to create a simple DIY electrical generator using a few easy-to-find materials. This step-by-step video guides you ...

Discover how to create a functional DIY solar panel using a compact disc, copper foil, aluminum foil, and LEDs in this ...

Reducing the stubborn soft costs of solar + storage is a much-discussed topic that will only become more important as the residential tax credit ends.

Jean] wrote into the tips line (the system works!) to let all of us know about his hacked and hand-wired C64 keyboard, a ...