That's because Popular Science recently published step-by-step instructions on how to create your very own flashlight that runs on dead batteries.

Adafruit's DIY enhancement for Converse All-Stars takes customized kicks to a whole new level with the science of electroluminescence.

Instead, make this DIY light that can be powered by your phone line (which is generally still operational during a power outage).

Maybe the best thing about this DIY project is its name: the Joule Thief. It’s a tiny LED flashlight that runs off dead batteries, eking out the last drops of voltage from a dead AA and throwing ...

Last year, we saw perhaps the brightest flashlight ever made, a DIY 1000W beast composed of ten different lights which can throw out a combined 90,000 lumens. How do you improve on that? You make ...