Donald Arthur Glaser (1926-13) Signed Ensemble, "Donald A. Glaser", blue ink, 4 x 2.5, enclosed in a protective cellophane envelope and mounted on an original collector's display sheet, 8.5 x 10, with a short biographical note printed at the top, by the American physicist, neurobiologist, and the winner of the 1960 Nobel Prize in Physics for his invention of the bubble chamber used in subatomic particle physics. He joined the faculty of the University of California at Berkeley, in 1959, as a Professor of Physics. During this time his research concerned short-lived elementary particles. The bubble chamber enabled him to observe the paths and lifetimes of the particles. This attractive, signed collector's ensemble is in fine condition.