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Weinberg, Steven (1933– )| US physicist who, together with Abdus Salam, was awarded the Nobel Prize for Physics in 1979 for demonstrating in 1967 that the weak nuclear force and the electromagnetic force (two of the fundamental forces of nature) are variations of a single underlying force, now called the electroweak force, and for the prediction of the existence of the weak neutral current. |
| Weinberg and Salam's theory involved the prediction of a new interaction, the neutral current (discovered in 1973), which required the presence of a fourth, ‘charmed’ quark. |
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| 9) Steven Weinberg, a Nobel laureate in physics who is also a rather outspoken atheist, concluded his excellent description of the way in which modern cosmology has been able to understand the universe from the first minutes of the big bang by asking what meaning can be derived from this knowledge. Nambu was the first to apply the idea of a spontaneously broken symmetry in elementary particle physics--that is, a symmetry that is an exact property of the underlying equations of the theory, but is not realized in the solutions of these equations, and hence not easily apparent in the properties of elementary particles," says 1979 Nobel laureate Steven Weinberg of the University of Texas at Austin. Cosmology Steven Weinberg Oxford University Press 198 Madison Avenue, New York, NY 10016 9780198526827, $90. |
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