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Aristotle (384-322 B.C.). http://zebu.uoregon.edu/timages/cosmos.jpg. http://westernparadigm.files.wordpress.com/2008/10/aristotle.jpg. Claudius Ptolemy (100-170). http://www.freewebs.com/mdreyes3/FWThumbnails/Ptolemy_geocentric_model.gif.
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Aristotle (384-322 B.C.) http://zebu.uoregon.edu/timages/cosmos.jpg http://westernparadigm.files.wordpress.com/2008/10/aristotle.jpg
Claudius Ptolemy (100-170) http://www.freewebs.com/mdreyes3/FWThumbnails/Ptolemy_geocentric_model.gif http://www.astro.umontreal.ca/~paulchar/sp/images/ptolemy.gif
Nicolaus Copernicus www.cartage.org.lb/.../TheCopernicanModel.htm http://www.bbc.co.uk/blogs/ni/Copernicus.jpg
Copernican retrograde • http://www.cartage.org.lb/en/themes/sciences/Astronomy/Thestars/stellardistances/TheParallaxMethod/TheCopernicanModel/TheCopernicanModel.htm
Tycho Brahe (1546-1601) Image taken from: http://www.skyofplenty.com/wp-content/uploads/2008/09/008_ss_tycho20brahe.jpg Image taken from: http://home.att.net/~numericana/arms/tycho.jpg
Johannes Kepler (1571-1630) Image taken from: http://www.oa.uj.edu.pl/apod/apod/image/kepler_hist.gif
Kepler’s First Law of Planetary Motion • Each planet’s path around the sun is an ellipse, with the Sun at one focus of the ellipse. • http://www.gravitywarpdrive.com/NGFT_Images/Kepler_1st_Law.gif
Kepler’s Second Law (areas, time, and angular momentum) • http://physics.syr.edu/courses/java/mc_html/kepler_frame.html • A planet moves along its elliptical path with a speed that changes in such a way that a line from the planet to the Sun sweeps out equal areas in equal intervals of time. http://schools.wikia.com/wiki/Newton%27s_Law_of_Universal_Gravitation http://hyperphysics.phy-astr.gsu.edu/HBASE/imgmec/kep6.gif
Kepler’s Third Law of Planetary Motion a = Semimajor axis = average distance to Sun P = Orbital period = time for one full orbit around Sun C = Constant whose value depends on the physical units used for a and P The ratio of the cube of the semimajor axis of a planet’s orbit (a) to the square of its orbital period around the Sun (P) is the same for each planet (C) a3 P2 http://images2.wikia.nocookie.net/schools/images/9/9b/Kepler%27s_third_law.gif
ircamera.as.arizona.edu/.../lectures/galileo.htm Galileo Galilei (1564-1642)
Galileo Sites • Galileo and Church • http://www.metacafe.com/watch/300465/galileo_galilei/ • Distance vs. Time (gravity) • http://www.mcm.edu/academic/galileo/ars/arshtml/mathofmotion1.html • Projectiles (horizontal vs vertical) • http://video.google.com/videoplay?docid=-3027460391161538149#
Taipei 101 • http://constructionknowledge.wordpress.com/2008/07/19/what-will-those-crazy-structural-engineers-think-of-next/
Photo of a Moleculehttp://www.dailymail.co.uk/sciencetech/article-1209726/Single-molecule-million-times-smaller-grain-sand-pictured-time.html