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Oppenheimer, J(ulius) Robert
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Oppenheimer, J(ulius) Robert
US physicist. As director of the Los Alamos Science Laboratory 1943–45, he was in charge of the development of the atom bomb (the Manhattan Project). He objected to the development of the hydrogen bomb, and was alleged to be a security risk in 1953 by the US Atomic Energy Commission (AEC).
Investigating the equations describing the energy states of the atom, Oppenheimer showed in 1930 that a positively charged particle with the mass of an electron could exist. This particle was detected in 1932 and called the positron.
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Burkina Faso Flag
Red symbolizes the revolution of 1984. The five-pointed star is said to signify the revolution or freedom. Green stands for the country's natural resources. Effective date: 4 August 1984.
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