We present a continuum theory of frustrationhyphen;limited clusters in onehyphen;component glasshyphen;forming liquids that accounts, in part, for the recently reported lsqb;Fischeretal., J. Nonhyphen;Cryst. Solids,131ndash;133, 134 (1991)rsqb;, and quite unexpected, presence in simple glasshyphen;forming liquids of stable clusters at low temperatures (T) and the even less expected persistence for very long times of these clusters at higherTrsquo;s. The model is based on the idea that there is a local structure that is energetically preferred over simple crystalline packing, which is strained (frustrated) over large distances; although in a curved space the preferred packing could lead to lsquo;lsquo;idealrsquo;rsquo; crystallization at temperatures that are usually above the actual freezing temperature, in lsquo;lsquo;flatrsquo;rsquo; space this transition is narrowly avoided. We are led to a newansatzfor theTdependence of the viscosity, which permits us to collapse data for many liquids onto a universal curve.
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