Emilio G. Segrè was an Italian-American physicist born on February 2, 1905, in Tivoli, Italy. He is best known for his discovery of the element technetium and for his work on antimatter, particularly the discovery of the positron in collaboration with Carl D. Anderson. Segrè's contributions to nuclear physics earned him the Nobel Prize in Physics in 1959. Segrè emigrated to the United States in 1938, where he worked at several prestigious institutions, including the University of California, Berkeley. He was also involved in the Manhattan Project, which developed the first atomic bombs during World War II. Segrè passed away on April 22, 1989.