To Kick Ass at Video Games Just Zap Your Brain with a 9V Battery

Scientists, already adept at using magnets to screw with the brain's ability to generate speech, are now sending direct current into people's brain matter to help them master video games. » 4/17/11 3:00pm 4/17/11 3:00pm

Homemade USB Charger Runs Off a 9V

In case you're interested in a cheap, reusable 9V to USB adapter/charger, AnythingButiPod has a neat step-by-step tutorial up that requires little more than soldering. Or you can always just buy a Duracell Instant Charger for not much more. [AnythingButiPod] » 11/02/09 4:20pm 11/02/09 4:20pm

How To Make a Nine Volt Battery-Lamp

A reader saw our Nine Volt Candle post and took it upon himself to make one of his own, then share the steps with the world. In short (because we're not that handy and like our gadgets pre-assembled), the process involves a battery, a flashlight bulb, a film canister, and various connecting parts. » 10/11/06 8:37pm 10/11/06 8:37pm