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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-4326
DTSTART:20161101T170500Z
DTEND:20161101T180000Z
DTSTAMP:20260314T101859Z
LAST-MODIFIED:20161014T132456Z
LOCATION:4274 Chamberlin (refreshments will be served)
SUMMARY:The mathematics of taffy pulling\, Chaos & Complex Systems Sem
 inar\, Jean-Luc Thiffeault\, UW Department of Mathematics
DESCRIPTION:Taffy is a type of candy made by repeated 'pulling' (stret
 ching and folding) a mass of heated sugar. The purpose of pulling is t
 o get air bubbles into the taffy\, which gives it a nicer texture. Unt
 il the late 19th century\, taffy was pulled by hand\, an arduous task.
  The early 20th century saw an avalanche of new devices to mechanize t
 he process. These devices have fascinating connections to the topologi
 cal dynamics of surfaces\, in particular with pseudo-Anosov maps\, whi
 ch are a prototypical chaotic system. Special algebraic integers such 
 as the Golden ratio and the lesser-known Silver ratio make an appearan
 ce\, as well as more exotic numbers. We examine different designs from
  a mathematical perspective\, and discuss their efficiency.
URL:https://www.physics.wisc.edu/events/?id=4326
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