1/3/2024 0 Comments Mosh pits at concerts![]() ![]() ![]() Heavy metal concerts are more like these panic or riot situations in terms of the collective motion of the participants. Furthermore, the students hope their work can provide insight into how a crowd of humans might collectively move in an emergency situation-running from a burning building or an earthquake, for example.Įxperiments of human motion in crowds have previously been attempted, but the situations are typically contrived and certainly not panicked, Silverberg said. Ever since their paper was uploaded to the arXiv, they've received lots of attention for their unusual experiments. The attempt to quantify moshers in a mosh pit isn't just for fun-they're looking to get published. This reminded the researchers of "circle pits"-a subset of mosh pits in which participants turn into a human collective whirlpool. But when flocking dominated random collisions between moshers, a more ordered, vortex-like state emerged. Mixing these populations together, the researchers found that when random collisions dominated the tendency to flock, the result was a run-of-the-mill mosh pit. Passive MASHers remain more stationary-mimicking concertgoers who prefer not to risk injury. Active MASHers move around with a tendency to follow their neighbors, so they tend to flock. Their simulations consisted of two types of moshers, which they dubbed Mobile Active Simulated Humanoids, or MASHers. He also made an interactive version of the simulation, in which different parameters like "noise" and "flocking" can be tuned. To understand what they were seeing, Bierbaum created a computer simulation based on the notion of "flocking," which is what happens when particles-or in this case, humans-tend to follow each other. Their scientific criteria for choosing YouTube videos: "The least shaky." "If you want to understand how people behave in extreme conditions, this provides a good lens to start looking at human collective behavior," Silverberg said.įor their experiments, the researchers downloaded YouTube videos of moshers moshing and used automated tracking techniques employed in associate professor of physics Itai Cohen's research group to quantify the crowd's motion. They discovered that the moshers' behavior, like flocks of birds or gas particles, can be predicted with simplified theoretical models. Silverberg quantified the motions of moshers with fellow student and metal fan Matt Bierbaum for a project in the advanced statistical mechanics class of James Sethna, Cornell professor of physics. ![]()
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