paradigm shift astronomy soon followed johannes kepler 's expressions planetary orbits summarized meticulous observations tycho brahe works men alongside galileo 's perhaps considered constitute scientific revolution great push toward modern concept explanation started galileo one physicists consummate theoretician great experimentalist analytic geometry mechanics descartes incorporated calculus mechanics isaac newton another theoretician experimentalist highest order writing principia mathematica ref name hooke nov see 'correspondence isaac newton vol ' ed h w
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