Get water out of thin air!

No, it is not an ac unit!  Actually my ac unit produces more water then the “WaterMill”” at only 12 liters a day.  It is interesting but cost $1,200 and cost around $0.03 a liter for water. 

http://www.guardian.co.uk/environment/2008/nov/23/water-mill-eco-invention

http://www.elementfour.com/