<http://schema.org/about>
"Cobble together a 40-watt, hand-crank electrical generator with a cordless drill and a few other household items that can charge a cell phone or illuminate small lights."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/slideshows/gadgets/make-human-powered-emergency-cell-phone-charger/page/2/>