The dream of rain making is as old as man. For centuries, Chinese suppliants, barechested, short-trousered, and wearing bands of green grass about their heads, have paraded with their dragons and beaten gongs to bring rain. In the U.S., Indians still propitiate the Thunderbird with symbolic dances.
With the help of science, the dream has at last become reality. Across the land, flyers were making rain by simply dropping 100-lb. loads of pulverized dry ice (solidified carbon dioxide) into cumulus clouds, thus precipitating ice crystals which turn into rain. This week, sweltering...
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