 Wolf Klaphake was a successful chemist working in Berlin during the 1920s and 1930s . During that time , he tested several forms of air wells in Yugoslavia and on Vis Island in the Adriatic Sea . Klaphake 's work was inspired by Zibold and by the works of Maimonides , a known Jewish scholar who wrote in Arabic about 1 @,@ 000 years ago and who mentioned the use of water condensers in Palestine . 
