Clay Moulton a Virginia tech student has designed a way to harness the power of a force that will never go away: gravity. The Gravia is an LED lamp that works by the force of a weight, sort of like a grandfather clock.
The Gravia lamp column glows when activated. The electricity is generated by the slow fall of a mass that spins a rotor. The resulting energy powers 10 high-output LEDs that fire into the acrylic lens, creating a diffuse light. The operation is silent and the housing is elegant and cord free – completely independent of electrical infrastructure.
To "turn on" the lamp, the user moves weights from the bottom to the top of the lamp. An hour-glass like mechanism is turned over and the weights are placed in the mass sled near the top of the lamp. With the sled gently gliding back down, within a few seconds, the LEDs come on and light the lamp, Moulton said. "It's more complicated than flipping a switch but can be an acceptable, even enjoyable routine, like winding a beautiful clock or making good coffee
Via Coolest Gadgets
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