Mosquito

As a night fighter, the Mosquito downed more than 600 Luftwaffe

Race, The problem of labour in the New World

One of the greatest problems faced by settlers in the New World, particularly in the southern colonies, was the shortage of labour. Within a few decades after the settlement of Jamestown, planters had established indentured servitude as the main form of labour. Under this system, young men (and some women) worked for masters, to whom they were indebted for their transportation,

Daimbert

Named bishop in 1088 and elevated to archbishop when Pisa was made an archdiocese in 1092, Daimbert accompanied Pope Urban II to France in 1095 to preach the First Crusade. Returning to Pisa the following year, he raised a

Ear, Human, Analysis of sound by the auditory nervous system

Evidence of orderly spatial representations of the organ of Corti at the lower levels of the auditory pathway has been reported by many investigators. These patterns seem to be in accord with the place theory of the cochlear analysis of sound. Physiological evidence of tuning of the auditory system also has been obtained by recording with the electrical potentials

Abraham, Karl

While serving as an assistant to the psychiatrist Eugen Bleuler at the Burghölzi Mental Hospital in Zürich (1904–07), Abraham met the psychoanalyst Carl Jung and made his initial

Papp, László

Papp, a former railway clerk, competed as a middleweight (161 pounds [73 kg]) at the 1948 Olympic Games in London. A hard-hitting left-hander, he won the first of his gold medals by defeating Britain's John Wright in the final match. In 1952, when the

Christian Iii

The eldest son of Frederick I, king of Denmark and Norway, Christian was educated as a Lutheran and showed Protestant

Obama, Barack, Jr.

American politician who became the third African American, and the first African American male Democrat, to be elected to the U.S. Senate after the end of Reconstruction (1877). Obama's father, Barack Obama, Sr., was originally a goatherd in Kenya; he won a scholarship to study in the United States and eventually became a senior economist in the Kenyan

Ear, Human, Transduction of mechanical vibrations

The hair cells located in the organ of Corti transduce mechanical sound vibrations into nerve impulses. They are stimulated when the basilar membrane, on which the organ of Corti rests, vibrates. The hair cells are held in place by the reticular lamina, a rigid structure supported by the pillar cells, or rods of Corti, which are attached to the basilar fibres. At the base

Russell, Morgan

After studying under Robert Henri in New York City, Russell moved to Paris in 1906 and lived there for 40 years. In 1913–14 he and Stanton Macdonald-Wright established Synchromism (q.v.) as an avant-garde movement, issuing manifestos and exhibiting together in Munich, Paris, and New York

Backbone Mountain

Highest point in Maryland, U.S., reaching an elevation of 3,360 feet (1,024 metres). It is located on a ridge of the Allegheny and Appalachian mountains, located in Garrett county 12 miles (19 km) south of Oakland. The ridge is 35 miles (56 km) long and extends southwestward into Preston and Tucker counties of West Virginia.

Ann, Cape

Cape on the Atlantic Ocean comprising the eastern extremity of Essex county, northeastern Massachusetts, U.S., 30 miles (48 km) northeast of Boston. Sheltering Ipswich Bay, it is indented by Annisquam Harbor on the north and Gloucester Harbor on the south. The tidal Annisquam River, a 4-mile- (6.4-km-) long navigable waterway, connects the two harbours. The cape also shelters the northern