I heard they had a fish in a bowl of water and that fish had some metal attached to it.
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Answered by Kina
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Dec. 18, 2014 00:30
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The earliest compass isn't a fish. It's a natural lodestone. Chinese people polished it into a spoon. Usually, there is a platform made use of bronze or wood. The spoon is put on the platform. Ancient Chinese rotated the spoon on the platform and then waited the spoon stopped. The handle pointed South and the other side pointed North.