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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-9509
DTSTART:20260313T203000Z
DTEND:20260313T230000Z
DTSTAMP:20260413T084218Z
LAST-MODIFIED:20260213T205538Z
LOCATION:2241 Chamberlin Hall
SUMMARY:Birth\, Death\, and Flocking: The Hydrodynamics of Dry Active 
 matter\, Physics Department Colloquium\, John Toner\, U Oregon
DESCRIPTION:In creatures ranging from birds to fish to wildebeest\, we
  observe the collective and coherent motion of large numbers of organi
 sms\, known as ‘flocking’. In this talk\, I'll use the hydrodynami
 c theory of flocking to explain why a crowd of people can all walk\, b
 ut not point\, in the same direction. Along the way I'll illustrate ho
 w one goes about formulating a hydrodynamic theory for heretofore unco
 nsidered states and system\, using powerful techniques from theoretica
 l condensed matter physics such as hydrodynamic theories\, the gradien
 t expansion\, and the renormalization group\, and using concepts from 
 fluid mechanics. 
URL:https://www.physics.wisc.edu/events/?id=9509
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