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Chapter 866 - Underwater Dragon King Cannon
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1558 AD, Ming Dynasty famous person Tang Shunzhi wrote a book known as Wubian. This book recorded the structure and way of arranging the underwater mines to be used to hit the pirates that affected China’s ocean regions.
These were the earliest made, man controlled, mechanism-fired mine anchors. The wooden boxes were used as the shell while putty was used to seal the black gunpowder inside. The firing mechanism was a long rope that one used to ignite.
There were three ...
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