Geocentric		he wrote, "On the Fabric of the Human Body"
descartes		a french philosopher
Heliocentric		a system of thought expounded by Rene
Ptolemicsystem		got trained from self-taught astronomer
scientificmethod		the universe isa series of concentric spheres
cavendish		developed scientific method
winkelmann		came from aristocratic family
NaturalPhilosophers		Taught mathematics
IsaacNewton		Lived in the second century
rationalism		a systematic procedure
vesalius		Medieval scientists
Ptolemy		first scientist to conduct controlled experiments
bacon		attended Cambrige University
Galilo		A system of planetary motion
Robertboyle		sun-centered