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The Compass 指南針

The Compass 指南針. One of the Four Greatest Chinese Inventions By: Chuen-Xi Quek. The First. First magnetic compass probably dates back to Qin Dynasty (221-206BC) Spoon-shaped or Big Dipper shaped object made of lodestone or magnetic ore placed in the middle of a bronze plate.

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The Compass 指南針

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  1. The Compass 指南針 One of the Four Greatest Chinese Inventions By: Chuen-Xi Quek

  2. The First • First magnetic compass probably dates back to Qin Dynasty (221-206BC) • Spoon-shaped or Big Dipper shaped object made of lodestone or magnetic ore placed in the middle of a bronze plate.

  3. The compass always pointed south, instead of north. • The square base represent earth, and the circular plate represent heaven. • At first not used as compass but as feng shui or geomancy before being used as navigation.

  4. Chinese marked the 8 main directions (north, east, west, south, northeast, northwest, southeast, and southwest) • As well as 24 direction based on the constellations. • Also 28 lunar mansions based on constellations dividing the Equator.

  5. Zheng He from the Yunnan province of China was the first person recorded to have used the compass as a navigational device. He used it in his seven ocean voyages between 1405 and 1433.

  6. In Europe… • 一一九0 歐洲第一次看到指南針. • The compass came to the Arab world and Europe between 960 and 1127. • 沒有指南針, 航行用極星,月和太陽. • The compass gave a constant bearing, and made navigation safer. This opened up the oceans for exploration and led to the discovery of the New World

  7. Why Compass Is an Important Invention? 指南針是一個很重要的發明. 是就 重要因 為讓人出不同的地方和幫人發現新的國家. 沒有指南針 Christopher Columbus 不可以發現了北美, 因此人類會很久差可以發現了北美. 人類也不可以知道他們在那裡. 沒有指南針, 中國四大發明之一, 人類現在會那裡? “Francis Bacon said in his book 'The New Instruments', that paper, gunpowder and the compass reshaped the world.”

  8. “Francis Bacon said in his book 'The New Instruments', that paper, gunpowder and the compass reshaped the world.” ~http://www.sacu.org/greatinventions.html

  9. BIBLOGRAPHY • http://www.smith.edu/hsc/museum/ancient_inventions/compass2.html • http://library.thinkquest.org/15618/inventor.htm • http://www.chinesecompass.org/history_of_the_chinese_compass.html • http://www.magnet.fsu.edu/education/tutorials/museum/chinesecompass.html • http://www.sacu.org/greatinventions.html

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