2. How do you know something is true? Because an authority says so? The moon is made of green cheese??

3. Socrates 469-399 B.C.E. Opinion vs Fact http://allserv.rug.ac.be/~tclaes/w&m/socrates.gif

4. Aristotle 384-322 B.C. Careful Observation! Views embraced by church. Geocentric Universe. http://www.meer.org/aristotle-portrait-2a.jpg http://csep10.phys.utk.edu/astr161/lect/retrograde/aristotle.html

5. Ptolemy 87-150 A.D. Ptolemaic System = Geocentric. Epicycles of 5 planets and sun around the earth. http://www.pbs.org/wgbh/nova/longitude/images/ptol emy.jpeg http://www.ucolick.org/~kory/AY3/gif/week2/epicycle.gif

6. Copernicus 1473-1543 Copernican system. Heliocentric (helios = sun). http://www.loc.gov/loc/lcib/0106/images/wt078p1-copernicus.jpg http://www.arts.unsw.edu.au/sts/sts_core_links/sts_new_stuff/sts_brochure/i mages_sts_brochure/copernicus.gif

7. Galileo 1564-1642 Telescope (“borrowed”) from a Dutch person. Jupiter’s moons = Galilean Satellites. http://charm.ph ysics.ucsb.edu/ people/hnn/galil eo.jpg http://www.jpl.nasa.gov/galileo/ganymede/manuscript1.jpg

8. “The Book” “Dialogue Concerning the Two Chief World Systems”. Heliocentric vs Geocentric. Written in Italian (not Latin). www.hao.ucar.edu/public/education/ sp/images/galileo.5.html

9. Father of the Scientific Method Develop a hypothesis and test it. Do the lab report (so others can verify your work/ideas).

10. Bibliography HISTORY OF THE SCIENTIFIC METHOD STUFF http://es.rice.edu/ES/humsoc/Galileo/Things/copernican_system.html Web page about Copernicus. http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Galileo.html Webpage on Galileo that gives a great synopsis of his life and achievements. www.philosophypages.com/ph/socr.htm Web page on Socrates gives pictures and a shot of him on his death bed. http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Aristotle.html Web page on Aristotle, gives a picture and a link to the poster below. http://www-groups.dcs.st-and.ac.uk/~history/Posters2/Aristotle.html Great poster of Aristotle. http://www.seds.org/billa/psc/theman.html Web page with color sketch of Ptolemy. http://www-groups.dcs.st-and.ac.uk/~history/Posters2/Ptolemy.html Great poster of Ptolemy. http://www.jpl.nasa.gov/galileo/ganymede/manuscript1.jpg Image of Galileo’s notes about Galilean satellites. www.hao.ucar.edu/public/education/ sp/images/galileo.5.html Image of the cover page for Galileo’s book: “Dialogue concerning the two chief world systems.”