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Until I read James Gleick's Chaos: The Making of a New Science in 1987, I had only a passing knowledge of paradigm shifts, one of the defining features of science described by Thomas Kuhn in his Structures of Scientific Revolution. Gleick used the paradigm shift idea to describe the break with the overly linear science brought on by the new discoveries of Chaos Theory - a usage of the paradigm shift concept that seems to adhere to Kuhn's definition.
A concise summary of Kuhn's ideas can be found in Lawrence van Gelder's June 19, 1996 NYTimes obit:
His thesis was that science was not a steady, cumulative acquisition of knowledge. Instead, he wrote, it is "a series of peaceful interludes punctuated by intellectually violent revolutions." And in those revolutions, he wrote, "one conceptual world view is replaced by another."
Thus, Einstein's theory of relativity could challenge Newton's concepts of physics. Lavoisier's discovery of oxygen could sweep away earlier ideas about phlogiston, the imaginary element believed to cause combustion. Galileo's supposed experiments with wood and lead balls dropped from the Leaning Tower of Pisa could banish the Aristotelian theory that bodies fell at a speed proportional to their weight. And Darwin's theory of natural selection could overthrow theories of a world governed by design.
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