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Chapter 192 - 192 Gunpowder
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... thing wrong.
Before science improved and discovered a more effective chemical synthesis method, for hundreds of years, the gunpowder made by humans was basically very smelly. The composition of gunpowder was sulfur, charcoal, and saltpeter. The former two were basically everywhere and could be easily mined and made. However, natural saltpeter was extremely rare and could only be extracted by artificial methods… The key was in the word “manual”.
There were many salt and alkaline l ...
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