Keep your family safe in an emergency situation with a hand-crank flashlight that provides light without requiring batteries, ...

The Gadget: The Torch flashlight from Wicked Lasers is currently being reviewed by Guinness as the world’s most powerful flashlight. At 4100 lumens, the Torch can easily start fires and even fry eggs.

Here's a little known fact: The human body, at any given moment, produces energy equivalent to a 100 watt light bulb. In that sense, we're always wasting our energy—energy that can be used to, well, ...

Batteries flat and no cellphone coverage and you need to communicate hundreds of miles? No problem. [Peter Parker VK3YE] has created a wind-up ham radio transmitter built into a discount store ...