Berkeley cyclotron physicists. Meeting of US scientists on 29 March 1940 to consider the feasibility of the 184-inch cyclotron (diagram on blackboard) at what was then the Berkeley Radiation Laboratory,Berkeley,California,USA. Over the following two years,this would become the S-1 project,and then part of the Manhattan Project,helping to enrich uranium for use in the atomic bombs used in World War II. Present here (left to right) are: US physicist Ernest O. Lawrence (1901-1958),US physicist Arthur H. Compton (1892-1962),US engineer Vannevar Bush (1890-1974),US chemist James B. Conant (1893-1978),US physicist Karl T. Compton (1887-1954),and US physicist Alfred L. Loomis (1887-1975) |