Talk about using ingenuity and simplicity to solve a difficult situation. In the Philippines, to bring sustainable lighting to homes in impoverished communities, empty plastic bottles are being installed in ceilings. Filled with water and bleach, they refract sunlight, and provide light equivalent to a 55watt light bulb.
Michael Perdriel fashioned a manual clothes washer that could be used by those in developing countries, but its low-tech design makes it indispensable for people in developed countries who dream of going green and off the grid. It requires no electricity or running water, and it cleans a load of clothes in 20 minutes. Interested in making one?