Why do things fall? Why are things attracted to each other? Gravity!! But how does gravity really work? What happens? Well think of space as a trampoline. If you put something heavy in the trampoline( like the sun) it will go down. If you out the smaller earth next to it, it will go around it. Look at the picture to the right.
The earth is making a distortion in the plane of space. The moon is nearby and roles in the indentation, so it orbits. So now you know WHY the apple fell on newton's head.
Aaron Kleiman 4/14/2012