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ISB 200 Notes - ISB 200 Notes The orgin of science Magical...

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ISB 200 Notes  17:00 9/5/11 The orgin of science Magical Systems attempt to model how the world works to get a measure of security levels of understanding components can’t be understood when developed, they are rational and self- validating  Mythical planet Nibiru will collide with earth on Dec. 21 st  2012 (end of world) Philosophy- love of knowledge  New model for universe machine-like, made up of parts that relate to one another according to laws nothing about machine that is beyond human comprehension principles that govern machine are unchanging The tool Human reason, governed and restrained by a set of rules for proper application of  reason: systematic logic Axioms- simple, self-evident statements that are beyond dispure Method- start with one or more axioms
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Use logical reasoning to prove or demonstrated a more complex statement of  proposition  More complex statement can then be used as if it were an axiom with respect to deriving  new insights  Evcid- developed principles of plane geometry  Aristotle- other classical writiers used the approach to try to understand other facets of  world Mr. Eratosthenes- 330 BC Earth is a sphere Measured its diameter to within 1% Earth is tilted on axis by 23.5 degrees Bagdad was best city 1000 years ago Sir Francis Bacon- 1561-1626 Relationship btw book and literacy Galileo Galleli rediscovery of classic works application of observation and common sense Natural philosophy reject the use of axioms  all statements/ ideas are provisional- hypothesis hypotheses are the tested by observation of nature based on test, the hypothesis is: rejected or modified/retained Astronomy roman inquisition: 1633
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Natural philosophy= science it is a method not a body of knowledge it can reject bad hypothesis with certainty proof is not possible theories are well tested hypotheses Progress of Science Physics (mechanics, optics, astronomy) Chem Bio Spontaneous Generation- for most of human history it was widely held that simple  creature could arise spontaneously for one living material Franceso Redi (Italy) 1668- maggots in meat- experiments with jars, in a short period  of time maggots would appear when jar was not covered, but when jar was covered  with a cloth no maggots appeared on meat Lazzaro Spallanzani (Italy) 1767- boil broth, let cool, leave open and it will fill with  microbes.  Boil broth, seal it up, nothing grows in broth. Open cork= microbes come in Louis Pasteur (France) 1822- 1895 Created pasteurization Saved the French wine industry- fermentation of grape juice to wine Germ theory of disease – most diseases effected by microorganisms in humans  (Koch)
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