1/13   Radio pioneer and electron tube inventor Lee DeForest arranged the world's first radio broadcast to the public at New York 100 years ago today.  He succeeded in broadcasting the voice of Enrico Caruso and other stars of the Metropolitan Opera to several receiving locations where listeners with headphones marveled at wireless music through the air.  It was the first broadcast to reach the public and the beginning of a new era in which wireless radio communication became universal.