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Snell's law

(Encyclopedia)Snell's law: see refraction.

Raoult's law

(Encyclopedia)Raoult's law räo͞olzˈ [key] [for F. M. Raoult, a French physicist and chemist] states that the addition of solute to a liquid lessens the tendency for the liquid to become a solid or a gas, i.e., r...

Beer's law

(Encyclopedia)Beer's law [for August Beer], physical law stating that the quantity of light absorbed by a substance dissolved in a nonabsorbing solvent is directly proportional to the concentration of the substance...

space law

(Encyclopedia)space law, agreements governing the exploration and use of outer space, developed since the first launching (1957) by humans of a satellite into space. Space law, an aspect of international law, has g...

Salian Law

(Encyclopedia)Salian Law: see Germanic laws.

canon law

(Encyclopedia)canon law, in the Roman Catholic Church, the body of law based on the legislation of the councils (both ecumenical and local) and the popes, as well as the bishops (for diocesan matters). It is the la...

poor law

(Encyclopedia)poor law, in English history, legislation relating to public assistance for the poor. Early measures to relieve pauperism were usually designed to suppress vagrancy and begging. In 1601, England passe...

Hipparchus, Athenian political figure

(Encyclopedia)Hipparchus hĭpärˈkəs [key], c.555–514 b.c., Athenian political figure, son of Pisistratus. After the death of his father, he was closely associated with his brother Hippias, tyrant of Athens, in...

composition, in ancient and medieval law

(Encyclopedia)composition, in ancient and medieval law, a sum of money paid by a guilty party as satisfaction to the family of the person who was injured or killed. Failure to make the payment might justify retalia...

Smith, John, British politician

(Encyclopedia)Smith, John, 1938–94, British politician. A barrister, he was first elected to Parliament in 1970 as a Labour party member from Scotland. He served as secretary for trade in 1970 and subsequently as...