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exploration

(Encyclopedia)exploration, travel to a part of the earth that is relatively unknown to the traveler's culture, historically often motivated by a desire for colonization, conquest, or trade. See also space explorati...

Gordius

(Encyclopedia)Gordius gôrˈdēəs [key], in Greek mythology, king of Phrygia. An oracle had told the Phrygians that the king who would put an end to their troubles was approaching in an oxcart, and, thus, when Gor...

Sanders, Nicholas

(Encyclopedia)Sanders or Sander, Nicholas, 1530–81, English Roman Catholic churchman. He became prominent at Oxford as an ally of Cardinal Pole and had to flee on the accession of Elizabeth I. He attended the Cou...

Wyandotte

(Encyclopedia)Wyandotte wīˈəndŏt [key], industrial city (1990 pop. 30,938), Wayne co., SE Mich., a suburb of Detroit on the Detroit River; inc. as a city 1867. Salt deposits there supply the city's extensive ch...

Gage, Thomas, English general in North America

(Encyclopedia)Gage, Thomas, 1721–87, English general in North America. He came to America (1754) with Gen. Edward Braddock and took part in the ill-fated expedition against Fort Duquesne (1755). Later in the last...

North Fork of the Koyukuk Wild River

(Encyclopedia)North Fork of the Koyukuk Wild River: see Gates of the Arctic National Park and Preserve. ...

retrograde motion

(Encyclopedia)retrograde motion, in astronomy, real or apparent movement of a planet, dwarf planet, moon, asteroid, or comet from east to west relative to the fixed stars. The most common direction of motion in the...

map projection

(Encyclopedia)map projection, transfer of the features of the surface of the earth or another spherical body onto a flat sheet of paper. Only a globe can represent accurately the shape, orientation, and relative ar...

Gill, Sir David

(Encyclopedia)Gill, Sir David gĭl [key], 1843–1914, Scottish astronomer, educated at the Univ. of Aberdeen. He made observations of the transits of Venus and Mars and investigated the solar parallax. As astronom...

weather vane

(Encyclopedia)weather vane or wind vane, instrument used to indicate wind direction. It consists of an asymmetrically shaped object, e.g., an arrow or a rooster, mounted at its center of gravity so it can move free...