Make Your Own Air Conditioner

From Lifehacker, comes this link with plans for making your own air conditioner. The design is actually an improvement on a previous $30 homemade air conditioner. This contraption uses a bucket of ice water and gravity to make cold water flow through a coil of pipe attached to the back of a fan, which made it blow cold air. The closed-circuit version doesn't waste water — it uses an aquarium pump to push the water through a tube loop submerged in an ice-filled cooler. :: Lifehacker