separating
51Puritan — A Puritan of 16th and 17th century England was an associate of any number of religious groups advocating for more purity of worship and doctrine, as well as personal and group piety. Puritans felt that the English Reformation had not gone far… …
52Empedocles — M.R.Wright INTRODUCTION Empedocles was a native of Acragas (Agrigento) in Sicily, a Doric colony founded on the south coast of the island in the sixth century BC, which soon grew to rival Syracuse in its prosperity. A line of temples, many of… …
53rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
54Decomposition method (constraint satisfaction) — In constraint satisfaction, a decomposition method translates a constraint satisfaction problem into another constraint satisfaction problem that is binary and acyclic. Decomposition methods work by grouping variables into sets, and solving a… …
55History of the Puritans — The history of the Puritans can be traced back to the Vestments Controversy in the reign of Edward VI ending in a decline in the mid 1700s. Background, to 1559 The English Reformation, begun his reign in the reign of Henry VIII of England, was… …
56membrane — 1. A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. SYN: membrana [TA]. 2. SYN: biomembrane. [L. membrana, a skin or m …
57Activities prohibited on Shabbat — Main article: Shabbat See also: Shomer Shabbat and Rabbinically prohibited activities of Shabbat The commandment to keep Shabbat as a day of rest is repeated many times in the Tanakh, the Hebrew Bible. (See for example Exodus 31:12 17 quoted …
58List of cities spanning more than one continent — A transcontinental city is a city occupying portions of more than one continent. Such a city may be transcontinental by virtue of crossing a continental boundary on land or of including islands associated with a continent other than that where… …
59History of chromatography — The history of chromatography spans from the mid 19th century to the 21st. Chromatography, literally color writing , was used mdash;and named mdash; in the first decade of the 20th century, primarily for the separation of plant pigments such as… …
60nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force …
