Come discover the universe of the four elements - air, fire, water and earth - as they were perceived by the philosophers of Antiquity. In this book, delve into the ideas of Empedocles, Aristotle, and other Greek scholars who influenced our understanding of matter and nature.Explore theories about the composition of the universe and matter. Discover Platonic solids, the theory of humors, a famous theory that has governed medicine for many centuries, and discover other interesting th...