Drink Up, Let’s Build A Solar Heater
A Chinese peasant has made a solar water heater - using only beer bottles and hoses. The beer bottles lie on a board in rows, all connected by hoses which allow cold water to flow through them and be heated by the sun. Ma Yanjun, a carpenter, said he invented it for his mother and he will build a solar-heated public bathroom for the village - when he has the money to buy enough beers.
FOOTNOTE: Shower power.