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The compass was invented in China during the Han dynasty between the 2nd century BC and 1st century AD where it was called the "south-governor" ( sīnán 司南) or "South Pointing Fish" ( 指南魚 ). [3] The magnetic compass was not, at first, used for navigation, but for geomancy and fortune-telling by the Chinese.
The compass in the Four Great Inventions was formerly the compass of ancient China. It is a kind of direction-indicating tool, which is widely used in navigation, field exploration and other fields. In ancient times, it had a profound influence on trade, war and cultural exchange.
A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north. Other methods may be used, including gyroscopes, magnetometers, and GPS receivers.
32-point compass rose. The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography.A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each separated by 90 degrees, and secondarily divided by four ordinal (intercardinal) directions—northeast, southeast, southwest, and ...
The Song dynasty ( / sʊŋ /) was an imperial dynasty of China that ruled from 960 to 1279. The dynasty was founded by Emperor Taizu of Song, who usurped the throne of the Later Zhou dynasty and went on to conquer the rest of the Ten Kingdoms, ending the Five Dynasties and Ten Kingdoms period. The Song often came into conflict with the ...
Coverage polygon of BeiDou-1. BeiDou-1 was an experimental regional navigation system, which consisted of four satellites (three working satellites and one backup satellite). The satellites themselves were based on the Chinese DFH-3 geostationary communications satellite and had a launch weight of 1,000 kg each.
Lenox continued some manufacture of bone china dinnerware at its plant in Kinston, North Carolina, built in 1989. The 218,000-square-foot (20,300 m 2) plant is situated on 40 acres (160,000 m 2). Its manufacturing capabilities included enamel dot, etch, color, and microwave metals, and eventually became Lenox's only American factory until its ...
Hanyu Pinyin. Mǎ Hé. Zheng He (also romanized Cheng Ho; 1371–1433/1435) was a Chinese admiral, explorer, diplomat, and bureaucrat during the early Ming dynasty (1368–1644). He is often regarded as the greatest admiral in Chinese history. Born into a Muslim family as Ma He, he later adopted the surname Zheng conferred onto him by the ...