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| | Heisenberg, Werner |
 | | Physical variables were to be represented by arrays of numbers; under the influence of Einstein's paper on relativity (1905), he took the variables to represent not hidden, inaccessible structures but “observable” (i.e., measurable) quantities. |
 | | Indeterminacy principles are characteristic of quantum physics; they state the theoretical limitations imposed upon any pair of noncommuting (i.e., conjugate) variables, such as the matrix representations of position and momentum; in such cases, the measurement of one affects the measurement of the other. |
 | | This new conception of the measurement process in physics emphasized the active role of the scientist, who, in making measurements, interacted with the observed object and thus caused it to be revealed not as it is in itself but as a function of measurement. |
| www.crownedanarchist.com /emc2/werner_heisenberg.htm (2554 words) |
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