http://img171.imageshack.us/img171/7883/17061846.jpg http://img204.imageshack.us/img204/6599/38251881.jpg http://img197.imageshack.us/img197/6237/14389591.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Brownianmotion5particles150frame.gif/220px-Brownianmotion5particles150frame.gif h...
