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Maritime Application of the Magnetic Compass

Type Object Region China Time c. 960

The Song systematically applied magnetic needle direction-finding to sea navigation, supporting long-distance trade with Southeast Asia and the Arab …

Timeline

  1. c. 960–1100Northern Song capitals and coastal ports · ChinaDuring the Northern Song, magnetic needle and compass forms were gradually perfected for geomancy and land orientation; Shen Kuo's Dream Pool Essays discussed magnetic declination, providing a theoretical basis for maritime application.
  2. c. 1119–1127Guangzhou-Quanzhou-Mingzhou route · Quanzhou CityZhu Yu recorded that sea vessels 'observed stars at night, the sun by day, and the compass in overcast weather,' showing the compass had become a routine instrument for ocean voyages, supporting regular routes to Southeast Asia and the Arab world.
  3. 1200Indian Ocean-Mediterranean route · EuropeCompass technology spread to Europe via Arab sea routes; combined with compass graduations and nautical charts, it became a key navigation tool for Age of Exploration transoceanic voyages, profoundly reshaping global connectivity.

Sources