In 1934 , due to the Nazi persecutions of Jews , he fled to the `` Schweizerische Forschungsinstitut '' in Davos , Switzerland , before moving to the United States in 1936 .
He fled to the `` Schweizerische Forschungsinstitut '' in Davos , Switzerland in 1934 because of the Nazi persecutions of Jews . He then moved to the United States in 1936 .