The math of mosh pits

A pair of metal head physicists at Cornell University who enjoy going to concerts and throwing themselves into mosh pits (I’ve done this a time or two back in the day — it’s fun) have taken an interest in the rules of motion behind the activity. “It was basically just this random mess of collisions, which is essentially how you want to think about the gas in the air that we breathe,” one said. So, they went to concerts and studied YouTube videos, and eventually created a mathematical model representing mosh pits, which they presented at a meeting of the American Physics Society, and this very cool simulator where you can change variables and see how the little moshers act.