In this speech from 1945, Robert Oppenheimer speaks about the development and use of the atomic bomb. He also talks about atomic weapons as “evil things” and the ethical application of science and scientific discovery. He also expressed his hope that the atomic bomb would never be used again, the peaceful use of nuclear technologies, and nuclear deterrence.

The physicist known as “the father of the atomic bomb” served as the first director of the Los Alamos National Laboratory beginning in 1943. The first atomic bomb test in New Mexico was on July 16, 1945, and on August 6, 1945, Little Boy was detonated above Hiroshima. After WWII, he became chief adviser to the newly-created Atomic Energy Commission.

The speech was delivered at the University of Pennsylvania Museum of Archaeology and Anthropology. It is presented courtesy of the American Philosophical Society Library.
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