Albert Einstein

How Einstein kept his cool: If you're the world's greatest scientist, a bender of space and time and the kind of guy whose thoughts move at 99% of the speed of light, you need to chill out with a nice cold beer from time to time. In the 1920s and 1930s, Albert Einstein spent a bit of time reinventing the refrigerator to make it safer. A normal refrigerator uses an electric pump to move a coolant c...hemical around a closed pipe. The coolant picks up heat inside the food box, drops it off on the outside, then goes back for more. But what if you have no electricity? How will you cool your beer? Einstein's machine, invented with his colleague Leo Szilard, uses water, ammonia, and butane, with the butane working as the coolant and the water and ammonia helping to move it around. Unlike a normal refrigerator, Einstein's box needs no electricity, just a steady source of heat to pump the fluids around their circuits. It's perfect for hot places where there's no electricity but plenty of sunlight (solar power).See More
Read Einstein's own explanation of how it works: http://www.google.com/patents/US1781541