Zero Carbon Footprint: The Solar Ice Maker
It may look like a funhouse mirror and potato gun, but this sucker is actually a solar powered ice maker that requires no electricity, and can produce 14 lbs of ice per day.
It works like this: the solar icemaker uses a refrigerant liquid that evaporates when exposed to the sun. The vapor travels through pipes that come into contact an absorbent material, which cools when the sun goes down. Once the slow-cooling absorbent hits 104Â°F, the refrigerant turns back into a liquid and its temperature drops like a rock to below freezing because of pressure differences. Put some water next to the evaporator's exterior and, presto, ice.
Awesome. I love ice. But you know what I love even more? Refrigerant. Shit's better than Kool-Aid. Plus you don't have to worry about that big red bastard "Oh Yeah!"ing his fat ass through the side of your house.