We've previously featured Phil Elkins' homemade travel trailer that was light enough be hauled by a bicycle. Now he's turned his attention to creating a portable shelter for the homeless. The result weighs 225 pounds and has a tiny bed, kitchen, and bathroom:
elkins wanted his design construction to be a simple, light weight, water tight insulated box on wheels, built with an area for displaying and selling handmade wares.[...]
the roof acts as a rain catcher. when it starts raining, a valve is turned to stop the flow of water to the collection tank to allow debris to be flushed from the roof. after a minute of this cleaning process, the valve can be turned back on and collect free water. when the tank is full, it has an overflow feature which allows excess water to drain to the ground.
You can view more pictures at the link.
Link via Fast Company | Photo: Design Boom