Lawrence, Ernest Orlando (1901–1958)
American physicist who in 1929 conceived and in 1931, with colleagues, built
the first cyclotron at the University
of California at Berkeley. Lawrence went on to develop larger cyclotrons,
capable of operating at higher energies, and his work in this area earned
him the 1939 Nobel Prize in Physics. The element lawrencium
was named after him, as was the Lawrence Berkeley Laboratory.