震天雷
zhèn​tiān​léi

shatter-heaven thunder

震天雷 zhèn​tiān​léi
shatter-heaven thunder
An early explosive weapon consisting of an iron casing filled with gunpowder and a fuse, used from the late Northern Song through the Jin and Yuan dynasties; it could be launched by a catapult or thrown by hand and was known for its thunderous sound and armor-piercing shrapnel.