Concept
Version 4
Created by Boundless
Technological Advancements under the Song
Trebuchet
An illustration of a trebuchet catapult from the Wujing Zongyao manuscript of 1044. Trebuchets like this were used to launch the earliest type of explosive bombs.
A drawing of a Song era trebuchet, a fire throwing device, a catapult on four wheels.
Source
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"Trebuchet1-intransit.jpg."
https://commons.wikimedia.org/wiki/File:Trebuchet1-intransit.jpg
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