[time-nuts] Glass is not a liquid but has some similar molecular similarities
mpb45 at clanbaker.org
Tue Jun 16 08:57:21 EDT 2009
Hello, Time Nuts-- For those of you following the
thread on glass properties, see:
Dual personality of glass explained at last
See the entire article at:
* 18:00 22 June 2008 by Colin Barras
Although glass feels like a solid, its molecules cannot quite settle
into a regular 3D lattice, instead taking on the disordered arrangement
of a liquid. Quite why glass behaves like this has been unclear.
This geometry is incapable of slotting together, or tessellating, to
form the regular 3D lattice characteristic of a solid. But equally they
cannot move around freely because they are larger than the original
Royall thinks that the molecules of real glass takes on the same
icosahedral structure, leaving it unable to crystallise into a solid,
but not free enough to have liquid-like properties.
"For a long time, no-one has really shown what the structure of glass
is," Royall says, "but we have been able to show how the structure of a
glass differs from that of a liquid."
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