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Check out this revolutionary new light that’s low-cost, emissions-free, and totally ingenious. *Also, before the physics nerds come after me bearing pitchforks — full disclosure: this light is technically powered by the human lifting the bag and not gravity. But it’s still incredible.

Alvin Melathe

Dec 20, 2012

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A light that is powered by gravity. Seriously, gravity.

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More for You

In an iconic 1975 clip, a teenage Michael Jackson stuns Cher during hypnotic robot dance duet

Mom took her teenage son to the ER, and the doctor seriously doubted their relationship

Mom explains why she gives her teens a ‘leave by’ curfew instead of an ‘arrive by’ curfew’

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First-grade teacher with 34 students tearfully explains how ‘exhausting’ teaching is

Get stories worth sharing delivered to your inbox.

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A dad rewatched a video of his son’s birthday. What he saw in himself changed the way he parents.

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In 125 years, millions of people have looked at this painting. No one really saw it until recently.