Fast-tracking the manufacture of glasses
Wednesday, June 30, 2010 - 08:56
in Physics & Chemistry
Old glass is not the same as new glass - and the difference is not just due to manufacturing techniques. Unlike crystalline solids, glasses change as they age, increasing packing density and stability. Ideally, a glass should be cooled slowly, maybe over 10,000 years or so, but that is not usually practical...