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Victor Frederick " Viki" Weisskopf (also spelled Viktor; September 19, 1908 – April 22, 2002) was an Austrian-born American theoretical physicist. He did postdoctoral work with Werner Heisenberg, Erwin Schrödinger, Wolfgang Pauli, and Niels Bohr. During World War II he was Deputy Division Leader of the Theoretical Division of the Manhattan Project at Los Alamos, and he later campaigned against the proliferation of nuclear weapons.
In the 1930s and 1940s, "Viki", as everyone called him, made major contributions to the development of quantum theory, especially in the area of quantum electrodynamics. One of his few regrets was that his insecurity about his mathematical abilities may have cost him a Nobel Prize when he did not publish results (which turned out to be correct) about what became known as the Lamb shift. Nevertheless, he was nominated for the Nobel Prize in Physics numerous times later in his career.
From 1937 to 1943 he was a Professor of Physics at the University of Rochester. There, he met graduate student Esther Conwell, and together they formulated the Conwell–Weisskopf theory, which describes the movement of electrons through and led to a better understanding of integrated circuits, knowledge that became essential for modern computing.
After World War II, Weisskopf joined the physics faculty at MIT, ultimately becoming head of the department. In 1956, he became one of the founding members of the Physical Science Study Committee (PSSC), developing the curriculum for a revolutionary method of teaching physics at the high school level. As the Red Scare faded, in 1959 Weisskopf joined physicists George Gamow and Hans Bethe in supporting the return of exiled physicist Frank Oppenheimer to science teaching; a decade later, Oppenheimer would found the innovative Exploratorium museum of science, technology, and arts in San Francisco.
At MIT, he encouraged students to ask questions, and even in undergraduate physics courses, taught his students to think like physicists, not just to memorize the equations of physics. He was a memorable teacher, and delighted in posing "" and then helping students to work out approximate answers. For example, he would ask the maximum possible height of a mountain on the Earth, calculated from known basic physical constants. It took him about half an hour to work through an explanation of his computations, with the result being of the same order of magnitude as the known height of Mount Everest. For an encore, he would quickly work out the analogous answers for Mars and Jupiter (when the Mars Orbiter survey results later became available, they were consistent with his computed elevation). For his finale, he would compute the energy released by rolling a bowling ball down the highest theoretical mountain on Jupiter.
Weisskopf was a co-founder and board member of the Union of Concerned Scientists. He served as director-general of CERN from 1961 to 1966. In 1966 a Festschrift was published in his honor. p. 638
Weisskopf was awarded the Max Planck Medal in 1956 and the Prix mondial Cino Del Duca in 1972, the National Medal of Science (1980), the Wolf Prize (1981) and the Public Welfare Medal from the National Academy of Sciences (1991).
Weisskopf was a member of the National Academy of Sciences and the American Philosophical Society. He was president of the American Physical Society (1960–61) and the American Academy of Arts and Sciences (1976–1979).
He was appointed by Pope Paul VI to the 70-member Pontifical Academy of Sciences in 1975, and in 1981 he led a team of four scientists sent by Pope John Paul II to talk to President Ronald Reagan about the need to prohibit the use of nuclear weapons.
In a joint statement "Preserving and Cherishing the Earth" with other noted scientists including Carl Sagan, it concluded that: "The historical record makes clear that religious teaching, example, and leadership are powerfully able to influence personal conduct and commitment ... Thus, there is a vital role for religion and science."
Citing initial teacher–student interactions, Noam Chomsky attributes to Victor the educational Saying,
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