Our second cousins at Lifehacker tell us about a guy named Pete H. who got sick and tired of the sweltering heat and made his own air conditioner out of an aquarium pump, a fan, some copper tubing and a plastic box full of ice.
After carefully arranging the copper tubing in front of a fan, Pete used the aquarium pump to push water through the closed system, where it passed in front of the fan on its way back to the ice. Hey, this could be a good way to liquid-cool a PC, too.
Make your own air conditioner [lifehacker]
https://lifehacker.com/make-your-own-air-conditioner-181510
