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How a tiny motor lifts a 1200-ton drawbridge #engineering #drawbridge #physics
How a tiny electric motor lifts massive 1200-ton drawbridges like London's Tower Bridge using hidden counterweights and physics. Subscribe for daily engineering truths! 00:00 — The suits lied about this bridge 00:10 — Motor smaller than a bus 00:17 — The secret hidden in dark basements 00:24 — Massive iron counterweights match the deck ...
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