Normal science is a concept originated by Thomas Samuel Kuhn and elaborated in The Structure of Scientific Revolutions. The term refers to the relatively routine work of scientists experimenting within a paradigm, slowly accumulating detail in accord with established broad theory, not actually challenging or attempting to test the underlying assumptions of that theory. Kuhn identified this mode of science as being a form of "puzzle-solving."
According to Kuhn, Normal science possess a built-in mechanism that ensures the relaxation of the restrictions that bound research whenever the paradigm from which they derive ceases to function effectively.
