Verlepte t1_j28vn4g wrote

The bit about Aristotle is not quite correct, that's a very Newtonian way of describing his theory. He was working within a Teleological framework, basically the idea that everything has a goal, an essence, that it's moving towards. Part of this is that like things move towards like things, so it's the 'earth' element in things that makes it move towards the earth, not due to some force but because that's where it's goal is.