Glasses are not stoichiometric compounds but variable mixtures of substances, some of which can independently form glasses while others cannot. This variability allows for a vast range of compositions ...

Crystals and glasses have opposite heat-conduction properties, which play a pivotal role in a variety of technologies. These range from the miniaturization and efficiency of electronic devices to ...

At first glance, glass and crystal seem identical — both are transparent, shiny, and used to make cups, vases, and chandeliers. But the difference lies in what they’re made of and how they sound, ...