Slate Slate Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. Foliation may not correspond to the original sedimentary layering, but instead is in planes perpendicular to the direction of metamorphic compression. The foliation in slate is called "slaty cleavage". It is caused by strong compression causing fine grained clay flakes to regrow in planes perpendicular to the compression. When expertly "cut" by striking parallel to the foliation, with a specialized tool in the quarry, many slates
Whose Line Is It Anyway? (radio series) Whose Line Is It Anyway? (radio series) Whose Line Is It Anyway? (abbreviated to Whose Line? or WLIIA) is a short-form improvisational comedy radio programme. A television series of the same name was based on it in 1988. Following the conclusion of the British run in 1998, ABC began airing a version for the United States audience. The show consisted of a panel of four performers who create characters, scenes and songs on the spot, in the style of short-form improvisation games, many taken from theatresports. Topics for the games were based on predetermined prompts from the host. "Whose Line