Science: Rain Man

"America's farmers," said a United Press dispatch from Washington last week, "need not worry about another serious drought until 1975." Reason: Dr. Charles Greeley Abbot.

Dr. Abbot, a grey, kind-looking man with a conspicuous mustache, is the secretary (i.e., head) of the Smithsonian Institution, a distinguished authority on the sun, a longtime observer of variations in solar radiation. Dr. Abbot believes that on solar radiation depend temperature and precipitation on earth. He has found in the solar variations a number of periodicities which fit into a 23-year cycle and an even more important...

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