Subscribe! California Democrats stage internal war over Gavin Newsom's late push to build more housing ‘MASH' Cast Members We ...

Cut a short 4” piece of memory wire, crimp a wire crimp to each end of the memory wire and bend the wire back and forth to make it shorter. Set aside. Sketch the circuit. Cut a rectangle of cardstock ...

This easy-to-construct circuit causes a standard LED bulb to glow when infrared is detected by an infrared photo-diode or phototransistor. The third, remaining part, is a common 2N2222 (or ...

Flexible circuits don’t always have to flex; they are often bonded to something rigid. They can also ‘flex to fit’, conforming to a curved design. Designers can fold and shape their circuits into ...

By wiring a circuit called a “joule thief,” you can tap the last of that power to light a white ... 10 mm superbright white LED; 24-gauge wire from old network cable; Toroid transformer core, ...

Run the inner wire halfway around your wheel's inner, cut to size and repeat three more times. "Strip away the plastic from the inner wire every 50mm, then rewire the LEDs closer together," Cram says.

We’ve posted our How-To for the week over at Engadget. Do you have an old modem lying around? Have you been dying to record some of your phone conversations for those podcasts or homebrewed m… ...