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The lighter side of sand

Like sand through the hourglass, this is a way to make light. We're always on the look out for ways to reduce both our power bills and carbon footprint, and a Brooklyn-based designer has caught our eye with a lamp that turns off-the-grid lighting on its head. Repeatedly.

Danielle Trofe's Hourglass LED Lamp is, as the name would suggest, shaped like an hourglass. Flipping it causes the slowly-falling sand to create kinetic energy that in turn powers the lamp, illuminating the surrounding area.