![](http://www.alamy.com/thumbs/6/758E6696-9346-43EA-B99D-9C91F835CBA0/MNXW2H.jpg)
. English: An illustration of a thunderclap bomb as depicted in the 11th century book Wujing Zongyao. 11th century. Zeng Gongliang, Ding Du, and Yang Weide 1191 Thunderclap bomb
Size: 1844px × 2710px
Photo credit: © The Picture Art Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., /, /., 11th, century., ding, du, gongliang, weide., yang, zeng