This $5 lamp is powered by gravity (and just destroyed its funding target on Indiegogo)

Reblogged from VentureBeat:

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A lamp for $5 that does not require any electrical power source?

It may sound like an impossible dream, but two designers in London have built functioning prototypes of GravityLight, a cheap way for people in developing countries t0 light homes, recharge batteries, or power a radio. And they just exceeded their Indiegogo fundraising goal by more than 500 percent with 21 days left in their campaign, so they'll have the resources to mass-produce the light for less than $5 a unit.

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