Researchers seeking to redefine difference between solids and liquids

(Phys.org) —Charles Radin a mathematical physicist with the University of Texas and one of his former student's David Aristoff, have built a 2D model material made of disks to represent atoms. In their article published in Notices of the American Mathematical Society, they suggest that their model shows that defining the difference between a solid and a liquid should be more a matter of measuring the way a material responds to shear, than looking at the way its atoms are arranged.

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