Keywords: Chinese Gunpowder Formula.JPG of the formula for gunpowder from the Chinese Wujing Zongyao military manuscript that was compiled by 1044 during the Song Dynasty of China It was written and compiled by the 11th century Song scholars Zeng Gongliang 曾公亮 Ding Du 丁度 and Yang Weide 楊惟德 The entry for this specific page is headed with the title method for making the fire-chemical huo yao fa This picture can also be found on page 119 of Joseph Needham's book Science and Civilization in China Volume 5 Part 7 own My book 2007-08-11 PericlesofAthens PD-old Wujing Zongyao History of China Gunpowder PD China Science and technology in China Massimo Musso Siku Quanshu |