[LibWhacker]

Newton's explanation of orbits: A cannon firing at different speeds. Shots A and B will fall to Earth, C will enter a circular orbit, D results in an elliptical orbit, and E is fired beyond "escape velocity".

Here's the idea: If two gravitating objects aren't going fast enough with respect to one another, they'll collide (as the cannon ball does at point A and point B). Attain some minimal orbiting velocity, and they'll go into orbit around one another, but just barely (C). Push the velocity higher, and the orbit will be higher (D). Push it too far and they'll break their gravitational bonds and go their merry ways (E).

[LibWhacker]

Dude... Don't you know you can't steal someone else's work? Never mind that they didn't create it. No, this is the age of the internet, when someone can claim a work is theirs even though they didn't pay the maker one red cent for it, and get all huffy about it as if you stole it from them. Hmmm, okay, here it is from another source. And who gets credit for it? Isaac Newton, who drew the first version. Makers of all other versions could be sued for intellectual theft in a just world. Kind of like re-writing Moby Dick in your own words.