materials

With November behind us, we’re wrapping up our 2012 Year of Materials theme, this month, with a focus on glass. Glass, in the broadest sense of the term, does not imply any particular type of atomic or molecular composition, but rather a particular kind of ordering of atoms or molecules in space. Or rather, a lack thereof. In understanding this it is helpful to contrast glasses with crystals, in which atoms/molecules are arranged in repeating rows, columns, or other identifiable patterns, like cannonballs stacked on a courthouse lawn. Glasses, on the other hand, are more like dice poured haphazardly into a jar.