Heat-Powered Refrigerator
No, the title is not an oxymoron, a not-so-new technology called “ammoniac-water absorption technique” is making a comeback to provide a sunlight-powered cooler for keeping food and beverages cold in places away from grid power. This method has been known for quite some time, though little has been done with it outside of flame-powered devices. Lets hope that changes, and we all get sun-powered coolers for those hot Texas summers in the near future.
http://www.dw-world.de/dw/article/0,2144,3106924,00.html via DVICE
