Another Point of Singularity

.. is the astonishing FOREVER FLASHLIGHT, which doesn't run on batteries or have a flashlight bulb. In fact, the battery (more accurately, the power generating cell) section is sealed tight. You power the thing up with an up and down shaking motion familar to any fan of internet porn. A slug of some sort of metal passes back and forth inside a copper coil, causing current by induction. It's not a hell of a LOT of current, but the light is an LED inside a parabolic reflector, causing light amplification to some degree.

Description (from THINK GEEK):

The Forever Flashlight uses no batteries or bulbs. Instead it uses Faraday's Principle of Induction and a bright LED to produce light without batteries. The light is shaken for about 30 seconds to recharge a capacitor and it will then provide about 5 minutes of light. As the light is shaken, a magnet passes through a metal coil generating electricity. During prolonged use it can be shaken for 10-15 seconds every 2 or 3 minutes.

The light requires no maintenance so it can be left in your home or car for a longtime but will still be ready to produce light. The bright LED will last for thousands of hours and does not burn-out like a typical lightbulb - it should never need replacement.

I freakin' love this thing.