I have to tell you, Ancient Greece is my favorite era of history. Oh, how I wish I could have been there to philosophize with the greats! Socrates, Plato, Aristotle, plus all of the mathematicians, like Pythagoras. He loved math so much, he made a religion out of it! I mean it makes sense, if you transport yourself to that time, where we didn't know any science. Let's look at the world through the eyes of the Pythagoreans! Watch the whole Mathematics playlist: Classical Physics Tutorials: Modern Physics Tutorials: General Chemistry Tutorials: Organic Chemistry Tutorials: Biochemistry Tutorials: Biology Tutorials: EMAIL► ProfessorDaveExplains@ PATREON► Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience! Amazon: Bookshop: Barnes and Noble: Book Depository: