00:00The Roman onager smashes stone walls with the brutal kick of an angry beast.
00:05How does a single wooden arm launch heavy boulders across massive fortress distances
00:10without black powder? Most builders assume giant metal springs absorb the shock,
00:16but twisting animal tendons created the real power. Tight bundles of horsehair and sinews
00:21store massive kinetic energy before snapping forward to hurl heavy rocks.
00:26This violent recoil mimics the wild animal it was named after before every heavy strike.
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