Szilard was discouraged. “As my knowledge of nuclear physics increased,” he said later, “my faith in the possibility of a chain reaction gradually decreased.”940 If other kinds of radiation also induced radioactivity in indium without producing neutrons, then he would have no more candidates for neutron multiplication and he would have to give up his belief in the process he still nicknamed “moonshine.” That final experiment would be worked by friends at the University of Rochester in upstate New York, where he would travel in early December.