A scientific revolution is a non-cumulative developmental episode in which an older paradigm is replaced in whole or in part by an incompatible new one.

Philosophers
Thomas-kun
American historian and philosopher of science (1922-1996). The Structure of Scientific Revolutions (1962) introduced "paradigm shift" — now an English idiom — and showed science advances by revolutions, not accumulation.
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Thomas-kun's Other Quotes
Normal science does not aim at novelties of fact or theory and, when successful, finds none.
The proponents of competing paradigms practice their trades in different worlds.
What a man sees depends both upon what he looks at and also upon what his previous visual-conceptual experience has taught him to see.
Related Quotes
Normal science does not aim at novelties of fact or theory and, when successful, finds none.
-- Thomas-kun
The proponents of competing paradigms practice their trades in different worlds.
-- Thomas-kun
What a man sees depends both upon what he looks at and also upon what his previous visual-conceptual experience has taught him to see.
-- Thomas-kun