00:00What if a catapult could fire bolt after bolt without stopping?
00:04The Polybolos did that.
00:06Dionysius of Alexandria built it around a flat link chain and a rotating crank.
00:10Each turn dropped a fresh bolt from the wooden magazine,
00:14drew the string, then sent it flying.
00:17The mechanism reset itself instantly, no hands needed.
00:21Stone throwers kept raining down, pinning the defenders.
00:25No pause.
00:26No reloading.
00:27Just the crank turning again.
00:29A real leap forward for siege weapons in the 3rd century B.C.
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