Some devices are elaborately made to appear as if they operate on Faraday’s Law, when in fact the components have as much functionality as a pet rock All the rage a few years back, shake-to-charge ...

The flashlight box clearly stated in poor, but understandable English, that the flashlight did NOT use batteries, all you had to do to make it light was to shake it back and forth. On my way out I ...

Hold the flashlight horizontally and shake it so the magnet moves through the coil. Shine the light at the audience. Original construction: purchased. The flashlight has had its capacitor and on/off ...

As Y2K approached and the world waited for blackouts that never came, human-powered electric gadgets saw a surge of popularity. These radios, flashlights and other devices don't need batteries ...

The technology may have a way to go before it’s ready for use in actual products. BBC’s Michael Fitzpatrick reports that the TV remote control would require a shake after 10-30 button presses ...

I’m not sure that I can even count all of the flashlight apps in the market these days (nor would I want to try), but one of them in particular has been downloaded somewhere between 10 and 50 ...

Are there any real magnetic induction shake-to-charge flashlights out there? Phil Karras relates his run-in with some more flagrant fakes on his website: “I’m not saying that the flashlights were not ...