Question

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指南针首先是风水先生发明和使用的。北宋时期，指南针应用于航海事业中，使之有了经久不衰的生命力。北宋前，航海者是利用日月星辰的位置来判定方向。这种方法在天晴时尚可运用，一旦阴雨天，航海者的命运就难以把握了。自从有了指南针，它为航海者带来极大的方便，成为航海家的必备之物。郑和七次下西洋， 哥伦布对美洲大陆的发现和麦哲伦的环球航行，都与指南针的应用分不开。

Answer 1

The compass first is geomancer invents and the use. The Northern SongDynasty time, the compass applies in the navigation enterprise, enableit to have the vitality which prolonged did not fade. Before theNorthern Song Dynasty, the navigation is determines the directionusing the heavenly bodies position. This method when clear sky stillpermissible utilization, once the cloudy rainy day, the navigationdestiny with difficulty grasped. Since had the compass, it bringsenormous convenient for the navigation, becomes navigator's necessarything. The Zheng He seven under Western world, Columbus to theAmericas mainland discovery with Magellan's round the worldnavigation, all cannot separate with the compass application.