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associative law

(Encyclopedia)associative law, in mathematics, law holding that for a given operation combining three quantities, two at a time, the initial pairing is arbitrary; e.g., using the operation of addition, the numbers ...

maritime law

(Encyclopedia)maritime law, system of law concerning navigation and overseas commerce. Because ships sail from nation to nation over seas no nation owns, nations need to seek agreement over customs related to shipp...

martial law

(Encyclopedia)martial law, temporary government and control by military authorities of a territory or state, when war or overwhelming public disturbance makes the civil authorities of the region unable to enforce i...

Henry's law

(Encyclopedia)Henry's law, chemical law stating that the amount of a gas that dissolves in a liquid is proportional to the partial pressure of the gas over the liquid, provided no chemical reaction takes place betw...

Hooke's law

(Encyclopedia)Hooke's law: see elasticity.

Gresham's law

(Encyclopedia)Gresham's law: see under Gresham, Sir Thomas. ...

Grimm's law

(Encyclopedia)Grimm's law, principle of relationships in Indo-European languages, first formulated by Jakob Grimm in 1822 and a continuing subject of interest and investigation to 20th-century linguists. It shows t...

Hubble's law

(Encyclopedia)Hubble's law, in astronomy, statement that the distances between galaxies (see galaxy) or clusters of galaxies are continuously increasing and that therefore the universe is expanding. Hubble's law ...

international law

(Encyclopedia)international law, body of rules considered legally binding in the relations between national states, also known as the law of nations. It is sometimes called public international law in contrast to p...

Joule's law

(Encyclopedia)Joule's law: see thermoelectricity. ...