History of Compass - Who Invented Compass?
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History of Compass - Who Invented Compass?
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The History of the Compass
Compass
Word's Greatest INVENTIONS - "When Was The Compass Invented" - YouTube
Compass - Wikipedia
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Explained: The science behind how compasses work - Times of India
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THE COMPASS An Important Chinese Invention. It is a device for determining direction. The simplest form of the compass is a magnetized needle mounted. - ppt download
Compass
Smith College Museum of Ancient Inventions: Compass
The History of the Compass - Dalvey
History of the compass - Wikipedia
