Google Blogs Alert for: 鬼谷子
| O-Compass By nadazdravkovic The earliest Chinese literature reference to magnetism lies in a 4th century BC book called Book of the Devil Valley Master (鬼谷子): "The lodestone makes iron come or it attracts it. An early form of the compass (a magnetized needle ... Challenging design - http://challengingdesign.wordpress.com |
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