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fluorescence

(Encyclopedia)fluorescence flo͝orĕsˈəns [key], luminescence in which light of a visible color is emitted from a substance under stimulation or excitation by light or other forms of electromagnetic radiation or ...

Fortas, Abe

(Encyclopedia)Fortas, Abe fôrˈtəs [key], 1910–82, associate justice of the U.S. Supreme Court (1965–69), b. Memphis, Tenn. After receiving his law degree from Yale in 1933, he taught there (1933–37) and al...

dynamics

(Encyclopedia)dynamics, branch of mechanics that deals with the motion of objects; it may be further divided into kinematics, the study of motion without regard to the forces producing it, and kinetics, the study o...

Hardenberg, Karl August, Fürst von

(Encyclopedia)Hardenberg, Karl August, Fürst von kärl ouˈgo͝ost fürst fən härˈdənbĕrk [key], 1750–1822, Prussian administrator and diplomat, b. Hanover. After service for Hanover and Brunswick, he enter...

sting

(Encyclopedia)sting, in zoology, organ found in bees, many wasps, some ants, and in scorpions and sting rays, used defensively as well as to kill or paralyze prey. In the bee and the wasp the venom is produced by g...

carbonated beverage

(Encyclopedia)carbonated beverage, an effervescent drink that releases carbon dioxide under conditions of normal atmospheric pressure. Carbonation may occur naturally in spring water that has absorbed carbon dioxid...

Black Hawk War

(Encyclopedia)Black Hawk War, conflict between the Sac and Fox and the United States in 1832. After the War of 1812, whites settling the Illinois country exerted pressure on the Native Americans. A treaty of 1804, ...

first aid

(Encyclopedia)first aid, immediate and temporary treatment of a victim of sudden illness or injury while awaiting the arrival of medical aid. Proper early measures may be instrumental in saving life and ensuring a ...

octane number

(Encyclopedia)octane number, figure of merit representing the resistance of gasoline to premature detonation when exposed to heat and pressure in the combustion chamber of an internal-combustion engine. Such detona...

Manipur

(Encyclopedia)Manipur mənĭpo͝orˈ [key], state (2001 provisional pop. 2,388,634), 8,628 sq mi (22,347 sq km), NE India, bordered by Myanmar on the south and east. Imphal is the capital. The terrain, mostly jungl...