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An example of a paradigm would be the geocentric model of the universe; an example of a paradigm shift would when the heliocentric model began taking over due to irrefutable evidence (largely from Galileo Galilei, Johannes Kepler, and Isaac Newton). In Kuhn's model, these three would be revolutionary scientists, because they changed the model.
A paradigm shift is a fundamental change in the basic concepts and experimental practices of a scientific discipline. It is a concept in the philosophy of science that was introduced and brought into the common lexicon by the American physicist and philosopher Thomas Kuhn .
The paradigm shift does not merely involve the revision or transformation of an individual theory, it changes the way terminology is defined, how the scientists in that field view their subject, and, perhaps most significantly, what questions are regarded as valid, and what rules are used to determine the truth of a particular theory.
The Oxford English Dictionary defines a paradigm as "a pattern or model, an exemplar; a typical instance of something, an example". [11] The historian of science Thomas Kuhn gave the word its contemporary meaning when he adopted the word to refer to the set of concepts and practices that define a scientific discipline at any particular period of time.
There are many philosophical and historical theories as to how scientific consensus changes over time. Because the history of scientific change is extremely complicated, and because there is a tendency to project "winners" and "losers" onto the past in relation to the current scientific consensus, it is very difficult to come up with accurate and rigorous models for scientific change. [17]
The idea has its provenance in Thomas Kuhn's notion of scientific revolutions, where one scientific paradigm is overturned for another. Classic examples are the Copernican Revolution , Albert Einstein 's theories , the work of Watson and Crick , and plate tectonics theory.
As such, a technological paradigm is composed by some sort of model of the technology at stake (e.g. the model of a microprocessor) and by the specific technological problems posed by such model (e.g. increasing computational capacity, reducing dimensions, etc.). Therefore, technology is identified as a problem-solving activity in which the ...
It gives examples of things what a scientist cannot do after a paradigm shift is complete, but does not say what they are examples of. "Once a paradigm shift is complete, a scientist cannot, for example, reject the germ theory of disease to posit the possibility that miasma causes disease or reject modern physics and optics to posit that aether ...