11 - Lecture 4 1/24/11 The Meaning of Science Scientific...

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Lecture 4 1/24/11 The Meaning of Science Scientific Question Can be tested,falsified, and verified Are based on, and decided by, evidence. Have a definite, objective answer. Acknowledge uncertainty. Not to confuse with science! Pseudoscience: masquerades as science, but does not follow the Scientific Method Religious science: constantly upholds hypotheses instead of trying to falsify them. Unidentified flying objects (UFOs): none of the “sightings” stand to careful scrutiny. Short-lived triumph: sooner or later pseudoscience collapses under the weight of scientific evidence. Non Science – Values: science says nothing about them. Religion/belief: science says nothing about them, unless religion/belief try to be science. Art: science says nothing about artistic value. Subjects of non science are usually easily separated from science. Science Think history Geocentric model (Ptolemy) Heliocentric Model ( Copernicus, Kepler) Each model made predictions that can be tested.
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Kepler's model gained acceptance due to the fact that it's predictions were more precise. Occam's Razor All things being equal the simplest solution is likely the simplest solution is likely the correct one Copernicus' model was not better than Ptolemy's in matching data – but it was simpler
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This note was uploaded on 03/14/2011 for the course ASTRO 115 taught by Professor Bergins during the Winter '11 term at University of Michigan.

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11 - Lecture 4 1/24/11 The Meaning of Science Scientific...

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