20/03/2010Vita ed energia dal Sole
Arc_Nebbia_Solare_31_072_04
31.72 Fresh water from the sea (Sunwater Company solar stills installations). Concrete block required for the job were manifactured from beach sand, using sea water , in a Cin-Va-Ram block press -- a development of the International Basic Economy Corporation. Crew of three made 300 to 400 a day.