IDST 120 PHILOSOPHERS/ASTRONOMERS

hesiod

poet who wrote theogany, a mythic account of the cosmos

anaximander

ionian physicist who identified the unlimited as the first principle of the world

pythagoras

philosopher portrayed as important mathematician and shaman lime religious leader

euclid

mathematician whose work “the elements” summarized greek mathematical learning

plato

philosopher who regarded mathematics as the standard of what real knowledge should be

eudoxus

developed model of concentric spheres

aristotle

incorporated the model of concentric spheres into physical model of cosmos

aratus

wrote a verse adaptation of a catalogue of constellations (from eudoxus)

aristarchus

proposed heliocentric hypothesis

eratosthenes

calculated circumference of earth

apollonius

helped develop epicyclic and eccentric hypotheses for planetary motion

hipparchus

discovered precession of equinoxes (the motion caused by the equinoxes along the ecliptic, that is on the plane of the earth's orbit)

ptolemy

wrote almagest, culmination of greek mathematical astronomy