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Malaspina Great Books Blog
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| Category: | ![]() ![]() Modern Science Modern Literature | ||
| Name: | ![]() Thomas Kuhn | ||
| Birth Year: | 1922 | ||
| Death Year: | 1996 | ||
| Representative Image: | ![]() | ||
| Biography, Lectures, and Research Links: |
Blog Thomas Kuhn
Eventually one of these theories "wins" and this ushers in the second of Kuhn's phases: Normal Science. A scientist working within this phase has an overriding theory (or set of theories) which Kuhn calls a paradigm. Within normal science, the scientist's job is to elaborate, expand, and further justify the paradigm. Eventually, however, problems arise, and the theory is modified in an ad hoc way to accommodate experimental evidence which might seem to contradict the original theory. Eventually, the current explanatory theory fails to explain some phenomenon or group thereof, and someone proposes a replacement or redefinition of the theory. This is what Kuhn calls a paradigm shift, ushers in a new period of revolutionary science. Kuhn believes that all scientific fields go through these paradigm shifts multiple times, as new theories supplant the old. One well known Kuhnian example involves Copernicus' suggestion that the earth revolves around the sun, rather than the Ptolemaic suggestion that the Sun (and the other planets and stars) revolved around the Earth. Prior to Copernicus there was an elaborate set of epicycles (circles on top of circles) which were used to predict the movements of the 'heavenly bodies'. Ptolmey's original epicyclic combinations were, by the Middle Ages, becoming noticeably less adequate, and 'fixes' by later astronomers were more and more elaborate. Copernicus offered a return to an alternative view (suggested by many in Antiquity) but with rather better data to support it; this new account decreased the complexity of theory necessary to account for the available observations. Of course, once Copernicus' theory was accepted by other astronomers, it ushered in a new period of 'normal science'. Refinements added by Kepler and Newton adhered to the new paradigm. Other more recent examples are the acceptance of Einstein's general relativity to replace Newton's account of gravity in the 1920s and '30s and Suess and Wegener's plate tectonics the 1960's by geologists. According to Kuhn, the science before and after a paradigm shift are so much different that their theories are incomparable - the paradigm shift does not just change a single theory, it changes the way that words are defined, the way that the scientists look at their subject, and perhaps most importantly the questions that are considered valid, and the rules used to determine the truth of a particular theory. It is important to understand that Kuhn's contribution to the philosophy of science is more precisely an observation about the sociology of science as practiced by humans. We can imagine a practice of science by Little Green Men somewhere whose characteristic way of handling science, changes in theory, new data, etc do not work the way Kuhn suggested in Structure. Thus we can see that a philosophy of science which applies to both human practice and to LGM practice could not be as it is said, by many, that Kuhn claimed. A reading of Structure makes clear that he, himself, was not making such a claim about the nature of science. There is an old observation (by Planck) that science progresses when the old guys die off and take their outmoded beliefs with them. A prematurely Kuhnian comment, perhaps, but not germaine to fundamental questions about the nature of science and scientific method. Popper's falsifiability is a much better candidate for a characteristic of science which will be invariant across all those doing science (ie, both us and the LGM and everyone else will have to do it the same way). Kuhn is very often misunderstood to have said something 'post-modern' about the nature of science. That is -- approximately -- that he showed that scientific truth changes with the scientist or the group of scientists doing it. This is further extended, in further misunderstanding, to suggest that such things as cultural relativity, prejudice, and so on are at the heart of science. This deconstruction of science has become common among some observers, but cannot be extended very far since science differs in fundamental ways from other intellectual enterprises. It is fundamentally a misunderstanding of the nature of science and, under the best conditions, its practice. Like all human endeavors, science has shown itself fully susceptible to fad, fashion, delusion, and prejudice -- in every case, pernicious, trivial, and everything in between. S. J. Gould's Mismeasure of Man is a booklength exposure of this regrettable fact in regard to claims -- 'scientific' claims -- about the relative intelligence of groups based on ethnicity, gender, etc. This intrusion of human concerns into the practice of an intellectual effort is not, or should not be, surprising. However, regrettable. Unlike other human endeavors, science has, at least in theory (however little actually resorted to in actual practice), a method of distinguishing between scientific claims based on fad, fashion, etc and scientific claims which can actually survive experimental testing and so require no support from fads, fashion, faith, etc. It is this, not always promptly applied, potential for correction which distinguishes 'science' from 'non-science', together with a certain consistency and methodical quality in the reasoning. It should also rescue Kuhn's account of the sociology of human science from its too common misunderstandings, but too often doesn't. [This article is licensed under the GNU Free Documentation License and uses material adapted in whole or in part from the Wikipedia article on Thomas Kuhn.] The Great Books: Thomas Kuhn This web page is part of a biographical database on Great Ideas. These are living ideas that have shaped, defined and directed world culture for over 2,500 years. By definition the Great Ideas are radical. As such they are sometimes misread, or distorted by popular simplifications. Understanding a Great Idea demands personal engagement. Our selection of Great Ideas is drawn from literature and philosophy, science, art, music, theatre, and cinema. We also include biographies of pivotal historical and religious figures, as well as contributions from women and other historically under-represented minorities. The result is an integrated multi-cultural and multi-disciplinary database built upon the framework of a Great Books Core List developed by Mortimer Adler (1902-2001). Please browse our Amazon list of titles about Thomas Kuhn. For rare and hard to find works we recommend our Alibris list of titles about Thomas Kuhn. Post Comments, Questions or Suggestions! This database is maintained by Malaspina Great Books © 1995-2004. | ||
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| Best Choice Books, Music, Art: | The Structure of Scientific Revolutions The Copernican Revolution Black-Body Theory | ||
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| Records from Related Period and Category: | Modern Literature Modern Science |
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This web page is part of a biographical database on Great Ideas. These are living ideas that have shaped, defined and directed world culture for over 2,500 years. By definition the Great Ideas are radical. As such they are sometimes misread, or distorted by popular simplifications. Understanding a Great Idea demands personal engagement. Our selection of Great Ideas is drawn from literature and philosophy, science, art, music, theatre, and cinema. We also include biographies of pivotal historical and religious figures, as well as contributions from women and other historically under-represented minorities. The result is an integrated multi-cultural and multi-disciplinary database built upon the framework of the always controversial Great Books Core List published in 1940 by the late Great Books Pioneer Mortimer Adler (1902-2001). Most of the works on that list are available in the 60 volume Great Books of the Western World. |

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