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=== Falsifiability ===

=== Falsifiability ===

In his seminal work, ''The Logic of Scientific Discovery,'' Karl Popper repudiated induction, and proposed the bright line of [[falsifiability]] as a demarcation between science and non-science.  In order to be scientific, a theory must be testable, and the results of the testing must either corroborate the theory, or falsify it.  A proposed theory is falsifiable, if it is conceivable to conduct an experiment that would either substantiate or disprove the theory.  For example, Newton's law of gravity was a valid scientific theory because it is falsifiable; that is, the Law of Gravity is experimentally testable, and a measurement taken that violates Newton's law would falsify it, while a measurement that substantiates the theory would corroborate it.

In his seminal work, ''The Logic of Scientific Discovery,'' Karl Popper repudiated induction, and proposed the bright line of [[Falsifiable|falsifiability]] as a demarcation between science and non-science.  In order to be scientific, a theory must be testable, and the results of the testing must either corroborate the theory, or falsify it.  A proposed theory is falsifiable, if it is conceivable to conduct an experiment that would either substantiate or disprove the theory.  For example, Newton's law of gravity was a valid scientific theory because it is falsifiable; that is, the Law of Gravity is experimentally testable, and a measurement taken that violates Newton's law would falsify it, while a measurement that substantiates the theory would corroborate it.

While chemistry, Newtonian physics among others are science, metaphysics, pseudoscience, and Darwinian evolution are not scientific.

While chemistry, Newtonian physics among others are science, metaphysics, pseudoscience, and Darwinian evolution are not scientific.