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SUMMARY:Extreme Mechanics of Marginal Matter - Martin van Hecke\, Kamerlin
 gh Onnes Laboratory\, University of Leiden
DTSTART:20130301T140000Z
DTEND:20130301T150000Z
UID:TALK43694@talks.cam.ac.uk
CONTACT:Alessio Zaccone
DESCRIPTION:All around us\, things are falling apart. The foam on our capp
 uccinos appears solid\, but gentle stirring irreversibly changes its shape
 . Skin\, a biological fiber network\, is firm when you pinch it\, but soft
  under light touch. Sand mimics a solid when\nwe walk on the beach but a l
 iquid when we pour it out of our shoes. Crucially\, a marginal point separ
 ates the rigid or jammed state from the mechanical vacuum\, freely flowing
  state - at their marginal points\, soft materials are neither solid nor l
 iquid.\nHere I will illustrate that the marginal point gives birth to a th
 ird sector of soft matter physics: intrinsically nonlinear extreme mechani
 cs. I will discuss three examples of this:\nShocks in Sand\, Flow of Foams
 \, and Elasticity of Marginal Networks.
LOCATION:Small Lecture Theatre\, Cavendish Laboratory
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