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compass, magnetic and mariner’s Reference library
The Oxford Dictionary of the Middle Ages
The earliest written evidence of a magnetized needle used to find direction comes from China c.
compass Quick reference
World Encyclopedia
Direction-finding instrument also used to show direction of a magnetic field. It is a horizontal magnetic needle on a
compass Reference library
The Oxford Dictionary of the Renaissance
The simplest form of compass was a magnetized needle lodged in a straw or piece of cork and floating in a basin of water. From the twelfth century compass needles were placed on a pivot ...
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compass Quick reference
The Oxford Companion to Ships and the Sea (2 ed.)
in present parlance the instrument by means of which a ship may be steered on a course and by means of which ...
compass Quick reference
The Oxford Dictionary of Phrase and Fable (2 ed.)
the use of the compass for navigation at sea was reported from China c.1100, western Europe 1187, Arabia c....
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