29 juillet 2004
Apollo - Entrepôt de l'université de Cambridge
Cambridge University Library’s
University of Cambridge
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Alan Macfarlane et al., « Chinese gunpowder », Apollo - Entrepôt de l'université de Cambridge, ID : 10670/1.d2ebf1...
The Chinese invented gunpowder some three or four centuries before it reached the West. Christopher Cullen watches a craftsman making gunpowder in China and participates in a demonstration of gunpowder propelled rockets.