摘要
我国在北宋时对磁体及磁学的认识已相当深刻,既用天然磁石使针磁化,又用天然的地磁场使烧红的铁片磁化,并首先发现地磁偏角和倾角。但11世纪初不是以磁体装置导航的初创时代的下限,而是以磁体导航的第一个繁荣的时代。其初刨的时代,西晋(公元265~317)的指南舟,应是我国以至全世界运用磁针导航的最早尝试。
In 960-1127,the Chinese people had a good knowledge of magnet and magnetics. Not only coild needles be magnetized by using natural magnet,but also small red-hot pieces of sheet iron could be mg-netized with the help of natural magnetic field. The angles of declination and inclination were discovered first by Chinese. The author contends that the early 11th century is not the lower limit of the prime period of magnetic device navigation,but the first booming period of it.The boat equipped witt the magnefic needle in 265-317 was the prime trial of magnetic needle navigation both in China and elsewhere.
关键词
技术史
磁
导航
history of technique
magnetism
navigation