Researchers have developed a battery that is cheap to assemble, biodegradable and made of renewable materials. The new battery is water-activated, disposable, and could significantly reduce the amount ...

Dear Heloise: This is a hint on how to hang or rehang something on the wall. In my case, it was a few battery-operated clocks. These clocks have what I call a “keyhole slot” in the back that you hang ...

Clock builds are a hacker staple, and many overflow with power-thirsty LEDs and network features. This build from [mattwach] takes quite the opposite approach, sipping away at its batteries thanks to ...