He lived privately until October, then left with his second wife, Elsa, on a long trip to the Far East and Japan, receiving notice of his Nobel Prize en route. He spent twelve days in Palestine on the way back and stopped over in Spain. By the time he returned to Berlin, German preoccupation with politics had temporarily retreated behind preoccupation with the Dadaistic mark, then soaring toward 54,000 to the dollar.644 Einstein went on with his work, including the Einstein-Szilard refrigerator pump and his first efforts toward a unified field theory, but began frequently to travel abroad.
