--scott (Director, New Technology, OLPC)
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The hand-crank was always a creation of the confused media coverage. You *can* power the XO-1/1.5/1.75 with a hand crank -- you just wouldn't want to. Your arms are not the strongest part of your body, and the cranking motion is inefficient. OLPC invested in multiple different power technologies for different parts of the world -- step-powered generators, cow-powered generators, small and large solar panels, car battery multi-chargers, etc. Large-scale solar power is the only thing which deployment countries have been eager to adopt in large numbers. We respond to our deployments.
Incidentally, the lower power consumption of the XO-1.75 unsurprisingly makes it work better on solar power as well.
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