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measurement

(Encyclopedia)measurement, determination of the magnitude of a quantity by comparison with a standard for that quantity. Quantities frequently measured include time, length, area, volume, pressure, mass, force, and...

interstellar matter

(Encyclopedia)interstellar matter, matter in a galaxy between the stars, known also as the interstellar medium. The interstellar gas, which constitutes about 99% of the interstellar matter, consists mostly of hyd...

electron

(Encyclopedia)electron, elementary particle carrying a unit charge of negative electricity. Ordinary electric current is the flow of electrons through a wire conductor (see electricity). The electron is one of the ...

market gardening

(Encyclopedia)market gardening, cultivation, on suburban land of high value, of vegetables and flowers for the supply of nearby cities. Heavy fertilizing and the planting of successive crops are employed to obtain ...

broker

(Encyclopedia)broker, one who acts as an intermediary in a sale or other business transaction between two parties. Such a person conducts individual transactions only, is given no general authority by the employers...

periodic table

(Encyclopedia)CE5 periodic table, chart of the elements arranged according to the periodic law discovered by Dmitri I. Mendeleev and revised by Henry G. J. Moseley. In the periodic table the elements are arrange...

Lowell, John, American jurist

(Encyclopedia)Lowell, John, 1743–1802, American jurist, b. Newburyport, Mass. He became (1762) a lawyer and later served in the provincial assembly (1776, 1778), in the state constitutional convention (1779–80)...

Adams, Henry Carter

(Encyclopedia)Adams, Henry Carter, 1851–1921, American economist, b. Davenport, Iowa. He developed an interest in public finance at Johns Hopkins and pursued this field during later studies in Germany. He taught ...

accessory

(Encyclopedia)accessory, in criminal law, a person who, though not present at the commission of a crime, becomes a participator in the crime either before or after the fact of commission. An accessory before the fa...

Cresson, Edith

(Encyclopedia)Cresson, Edith ādētˈ krĕsōNˈ [key], 1934–, French politician, b. Edith Campion. After studying at the École des Hautes Études Commerciales, she became a consultant in private industry. Activ...