The difference between an easy model and a complicated one. Click in the canvas to hide/show the orbits! Timeline Timeline ≈ 350 BC, Aristotle Aristotle, a pupil of Plato, becomes the tutor of Alexander the Great. Aristotle's views of the world shape science for centuries. His influence lasts until the enlightenment. In his book On the Heavens (part 14), Aristotle asserts that: From these consider