| 关于指南针发明年代的探讨 |
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| 引用本文： | 刘秉正,刘亦丰.关于指南针发明年代的探讨[J].东北师大学报(自然科学版),1997(4):23-26. |
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| 作者姓名： | 刘秉正 刘亦丰 |
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| 作者单位： | 东北师范大学物理系 |
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| 摘 要： | 讨论了指南针发明年代问题，指出了将指南针发明年代确定为９－１０世纪所根据的文献资料是不可靠的，要把指南针发明年代从１１世纪往前推，还必须寻找更可靠的文献资料。
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| 关 键 词： | 指南针 发明年代 科学史 |
On the Invention Time of Magnetic Needlc |
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| Liu Bingzheng.On the Invention Time of Magnetic Needlc[J].Journal of Northeast Normal University (Natural Science Edition),1997(4):23-26. |
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| Authors: | Liu Bingzheng |
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| Abstract: | The invention time of magnetic needle is discussed. It is pointed out that the literatures which some people based to assert that magnetic needle was invented in 9 or 10 centuries are not reliable. |
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| Keywords: | magnetic needle invention time geomancer |
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