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SUMMARY:Consider the Icicle - Stephen Morris\, University of Toronto 
DTSTART:20191101T160000Z
DTEND:20191101T170000Z
UID:TALK132340@talks.cam.ac.uk
CONTACT:73696
DESCRIPTION:Icicles are harmless and picturesque winter phenomena\, famili
 ar to anyone who lives in a cold climate.  The shape of an icicle emerges 
 from a subtle feedback between ice formation\, which is controlled by the 
 release of latent heat\, and the flow of water over the evolving shape. Ma
 ny natural icicles exhibit a ripply shape\, which is the result of a morph
 ological instability.  The wavelength of the ripples is remarkably indepen
 dent of the growing conditions.  Similar shape and ripple phenomena are al
 so observed on stalactites\, although certain details of their formation d
 iffer.  We built a laboratory icicle growing machine to explore icicle phy
 sics. We learned what it takes to make an ideal icicle and the surprising 
 origin of the ripples.\n\nWork done with Antony Szu-Han Chen and John Lada
 n.   \nSee also The Icicle Atlas\, an open source data project.\nhttps://w
 ww.physics.utoronto.ca/Icicle_Atlas/\n
LOCATION:MR2\, Centre for Mathematical Sciences\, Wilberforce Road\, Cambr
 idge
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