Ernest Orlando Lawrence

Born: 1901
Birthplace: Canton, So. Dakota

Method and apparatus for the acceleration of ions—Lawrence's cyclotron enabled him to study the structure of the atom, transmute certain elements, and produce artificial radioactivity. His research included the use of radiation in biology and medicine and he helped isolate uranium 235 which was used in the first atomic bomb. Lawrence received the 1939 Nobel Prize for Physics. (1982)

Died: 1958

Irving LangmuirThe National Inventors Hall of FameWilliam Lear