War heroes, like Paul Revere, are well known. However, there are also war heroes that a lot of people have never heard of. Unheralded as they maybe, they are worthy of commendation for very few people are willing to endure what these 25 war heroes you probably never heard of have endured. Subscribe to List25.
Lambda calculus. Lambda calculus (also written as Î»-calculus) is a formal system in mathematical logic for expressing computation based on function abstraction and application using variable binding and substitution.
talc. A white, greenish, or gray mineral that is a silicate of magnesium, usually occurring as massive mica-like flakes. It has a soft, soapy texture, and is used in face powder and talcum powder, for coating paper, and as a filler in paints and plastics.Talc is the mineral used to represent a hardness of 1 on the Mohs scale.alc. n. 1. See talcum powder. 2. (Minerals) a white, grey, brown, or pale green mineral, found in metamorphic rocks. It is used in the manufacture of talcum powder and electrical insulators. Composition: hydrated magnesium silicate.