Medieval catapults used carved rock as well as dead animal carcasses intended to spread disease and the decapitated heads of soldiers to lower moral. Arrow loops, also referred to as "loop holes", which were slits within walls gave archers a huge advantage as they were shaped like funnels and allowed archers to look out without being seen. Crossbows were primarily made out of yew wood as it contains sapwood which is ideal for tension and heartwood which is ideal for compression. Crossbows were r...
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