All right, wasn't that time travel amazing! Well, we are going to try and find Aristotle.Before we talk to him, let me warn you! We came here to visit him, not because he was right, but because he was wrong! His ideas were believed to be true from 500 BC to 1600 CE. That's about 2000 years of false knowledge. What Aristotle taught, appeared to be correct because it seemed obvious, but not all things are obvious.

" Wait, I see him now." There he is! Lets go talk to him. "Hello Aristotle!"

"Great Zeus! You seem to be a god that has descended from the heavens. That hat of yours is enigmatic of your strength. I am at your mercy, oh Great One"

"Thanks, for the praise, but I'm no god, but for your purposes, I am a person who wishes to know more about your theory about the motion of objects"

"Ahh yes, I'd love to share that with you. I believe all motion is linear on the planet Earth: meaning everything moves in a straight line. Let me show you. If I throw this rock, it will travel in a straight line, and also fall in a straight line….

The way Aristotle thought projectiles moved	The way projectiles "really" move

In addition, when I drop this feather and rock at the same time, the rock will fall to the ground first. Why you ask? Well, that's because I believe that the Earth pulls on objects according to their weight.This means that a large heavy object will fall to the ground faster than a large light object."

The way Aristotle 'saw' objects to fall on the Earth	As we know, or will know in the next few sections, objects actually fall like this in a friction free environment (vacuum)

"Is that all Aristotle?"

"Of course not, there also exists a natural motion with each object. This is the motion an object has when it is as rest and when it is moving in a straight line at uniform speeds. This natural motion is also prevalent in the heavens - the great glass spheres that rotate around the center of the universe - our planet Earth."

"Ummm yes?!? Well Aristotle, how do you account for motion that isn't at constant speeds??"

"Well my under-educated friend, this is what I call violent motion. You see motion also depends on an applied movement. Once this movement stops, the motion of the object stops. For example, if I push this cart, the cart keeps moving until I stop pushing. That's all I'm going to talk about today. Good day sir."

Well, I hope you see how Aristotle's view on motion seems to make sense. Unfortunately, it isn't correct. But because his theories appeared to make sense, they became popular and well accepted for a very long time. The key ideas that Aristotle tried to teach were:

All motion on the Earth is linear .

All motion in the heavens (outer space) is curved .

The speed at which an object falls is directly related to the mass of an object .

Motion could be considered in two main factions: natural and violent.

Motion continues so long as there is only an applied motion to an object. Removing the motion stops the object.

It would take a man named Galileo to start the wheels of change in this field of knowledge called physics.