Ancient Scientists

Thales

First scientist

Looked for causes and recorded observation

Thaleans believed the universe was geocentric

This means that the earth is the center of the universe

Aristotle

Considered Plato his father in philosophy

Plato considered Socrates his father in philosophy

Copernicus

Believed the universe was heliocentric

This means that the sun is the center of the universe

Pythagoras

Developed the Pythagoras theorem

Ptolemy

Described the motion of planets

Formed an idea about relative planet positions