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Survival potassium nitrate and gunpowder - second attempt at making

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Published on Sep 16, 2017

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The second (scientific) attempt at survival production of potassium nitrate and gunpowder. How did the Hussites manage to produce potassium nitrate and gunpowder in the Middle Ages? And the Chinese already in the 9th century... Wekon from the Wekon channel collaborated on the video.

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