Mechanically-powered flashlights — be they shake, crank or squeeze varieties — are one of those must-have items for every emergency kit. When a tornado knocks out power, or the Big One hits ...

We know that you can transform the mechanical motions of your body into electrical energy, like when you turn the crank or shake a mechanically-powered flashlight. These types of mechanical motions… ...

Developed by Matt Stanton and Hahna Alexander when they were students at Carnegie Mellon, the shoe insoles consist of similar parts as a mechanically-powered, hand crank flashlight.

Bear Motion's self- and solar-powered radio/flashlight combo is less than $19 today. Just what you and your tech need to survive the great outdoors (or a blackout).