US physicists Ernest Lawrence (1901-1958, left) and J. Robert Oppenheimer (1904-1967, right), and US chemist Glenn Seaborg (1912-1999, middle), at the control panel of the 184-Inch Cyclotron, a form of particle accelerator invented by Lawrence, in 1946. Lawrence was awarded the 1939 Nobel prize for his invention of the first iteration of the cyclotron, and after his death had the Lawrence Berkley Laboratory and the element lawrencium named after him. J. Robert Oppenheimer was an American physicist best known for leading the Manhattan Project, which developed the first atomic bomb in 1945. Glenn Seaborg was awarded a share of the 1951 Nobel prize in chemistry for his role in the discovery of ten transuranium elements (elements with atomic number greater than 92).