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SUMMARY:Contortion of a beach ball - Quilliet\, C (CNRS)
DTSTART:20151119T110000Z
DTEND:20151119T123000Z
UID:TALK62608@talks.cam.ac.uk
CONTACT:42080
DESCRIPTION:Touching an object is not always necessary to evaluate its mec
 hanical properties. Similarly\, obtaining clues on a microscopic structure
  can be done without the use of sophisticated devices : in some cases\, th
 e simple observation of a shape can tell a lot.\n\nIn the research domain 
 of Soft Matter\, many nice shapes can be met\, taken by very deformable ob
 jects under weak sollicitations\, that are to be interpretated with quite 
 simple concepts (surface tension\, entropy\, elasticity...). In this respe
 ct\, beach balls and their cousins are efficient models for several object
 s of Soft Matter\, because they present a variety of qualitatively differe
 nt behaviours when they undergo deflation.\nAfter a short introduction to 
 surface mechanics\, I will present how these type situations can explain s
 ome aspects of more elaborated systems (like the efficiency of the trap to
  be found in some carnivorous plants)\, or guide the realization of artifi
 cial microswimmers designed to be remotely controlled in the human body th
 rough echographic \n\n
LOCATION:Seminar Room 2\, Newton Institute Gatehouse
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