Question
Asked by Kamelia | Nov. 20, 2012 16:31
About:Four Great Inventions of Ancient China

When was the compass made?

Answers (1)
Answered by Gabby | Nov. 21, 2012 00:07
316Reply
During the Warring States period, a device called a Si Nan became the forerunner of the compass. In the 11th century, tiny needles made of magnetized steel were invented. One end of the needle points north while the other points south. The compass was thus created.
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