日韩午夜精品视频,欧美私密网站,国产一区二区三区四区,国产主播一区二区三区四区

 

Top 10 greatest inventions of ancient China

By Lin Liyao
0 Comment(s)Print E-mail China.org.cn, March 4, 2011
Adjust font size:


   Compass

 


blob.png

The earliest Chinese compasses were originally invented to harmonize environments and buildings in accordance with the geometric principles of Feng Shui. [china.com.cn]

The earliest Chinese compasses were probably not originally invented for navigation, but to harmonize environments and buildings in accordance with the geometric principles of Feng Shui. It is proved that the earliest Chinese reference recording a magnetic device used as a "direction finder" is in a Song Dynasty book dated during from 960 to1279. The earliest record about the actual use of a magnetized needle for navigation is Zhu Yu's book Pingzhou Table Talks, written in 1102. The invention of compass greatly improved the safety and efficiency of travel, especially oceanic navigation.


<  1  2  3  4  5  6  7  8  9  10  >  


Follow China.org.cn on Twitter and Facebook to join the conversation.
ChinaNews App Download
Print E-mail Bookmark and Share

Go to Forum >>0 Comment(s)

No comments.

Add your comments...

  • User Name Required
  • Your Comment
  • Enter the words you see:   
    Racist, abusive and off-topic comments may be removed by the moderator.
Send your storiesGet more from China.org.cnMobileRSSNewsletter
主站蜘蛛池模板: 津南区| 龙胜| 宜君县| 开封市| 海丰县| 西城区| 阳泉市| 姚安县| 青州市| 德钦县| 贵南县| 玉田县| 梅河口市| 克东县| 德化县| 巴彦县| 周口市| 宜丰县| 巴林右旗| 车险| 满洲里市| 新绛县| 湘潭市| 岐山县| 阳原县| 双流县| 延寿县| 本溪市| 常宁市| 丹东市| 宁明县| 江陵县| 尼勒克县| 塘沽区| 府谷县| 义马市| 靖宇县| 大竹县| 北川| 浮梁县| 静海县|