Stories by David Turnbull

In composition they are metallic, but they have the noncrystalline atomic structure typical of a glass. Such a material can be prepared by cooling a molten alloy at a rate of a million degrees per second

A substance is said to be “undercooled” when it remains liquid below its “equilibrium crystallization temperature,” or nominal freezing point. The study of such liquids has shed light on the freezing process