UnknownIncognito, I think we've been pretty tolerant so far (remember the irrelevant jokes thread?), but this is getting silly now. I'm asking you nicely, could you please just stop posting stupid threads that have no real merit for discussion? Thank you.
On topic, however, gravity works because of quantum physics. Every atom is made up of seperate elementary particles (protons, neutrons and electrons), but each of these is made up of even smaller particles (quarks, mesons, besons, etc.). Some of these particles, which every atom has at some fundamental level, are gravitons, which are basically attracted to each other according to Newton's Law of Gravitation. That's how gravity works. How they are attracted is similar to electromagnetism. There are four forces - weak, strong, electromagnetic, and gravitational, which are all basic properties of these fundamental particles (each type of particle has different properties, however). So these forces are what allow gravity, and it isn't just big things like planets, but everything in the universe is attracted to everything else. It's only noticeable at planetary sized levels though, since the force of gravity is minutely small for each particle, so only absolutely huge objects like planets have any sort of major gravitational pull.
That's basically it, as far as I can remember, but Wikipedia might be able to fill in any gaps since my own knowledge is based on a Quantum Physics course I did at A-Level.
[/thread]
