This is brilliant. It’s a mobile foundry that can be built from components readily available in the developing world which allows waste aluminum cans to be recycled into useful objects. Other than fire (which is fueled by scrap wood and paper and recycled cooking oil), the only energy requirement is for a hairdryer to boost the heat of the furnace. This innovation offers an opportunity for the street collectors to ‘create’ value by up-cycling the waste into new products rather than simply sell the collected aluminum cans to the large recycling plants for a pittance.
Really worth a watch, but the whole story is available here, http://www.humansinvent.com/#!/13754/can-city-the-mobile-foundry/