Support WBURMosh Pit Math: Physicists Analyze Rowdy CrowdPlay03:59Download AudioGeoff BrumfielMarch 22, 2013 ShareFans in the mosh pit during the performance of Liturgy at the 2012 Pitchfork Music Festival in Union Park, Chicago, on July 14, 2012. (Getty Images)
Fans in the mosh pit during the performance of Liturgy at the 2012 Pitchfork Music Festival in Union Park, Chicago, on July 14, 2012. (Getty Images)