Lavrans Laading and his Mechanical Flashlight

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Lavrans Laading invented a totally mechanical flashlight – the only thing that’s electronic about it is the LED!  No batteries, all mechanical – relying on a series of springs and a wind-up mechanism.  The prototype of Lavrans’ flashlight runs for up to 3 minutes on a charge, but is being engineered to have better numbers.  The main point is that it’s all mechanical – let’s see how it goes.

Check out the images – interesting form factor!

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Thanks, DesignBoom!