Ever wondered how ancient civilizations crossed rivers without modern tools? 🤔 This stunning 3D animated short reveals the genius engineering behind early wooden bridges — from a single plank to a complex, stable structure that could last for centuries.
00:02If you want to cross the river, you can borrow a piece of wood from Wugang and put it on the river.
00:06This is the single plank bridge.
00:08If you can cross the river, you can cross the river, but it is narrow and dangerous.
00:13You can't help it when you encounter a wide river, and the single plank bridge is not long enough.
00:18If you are smart, you can drive wooden piles in the river to support the bridge in sections.
00:23The bridge deck is wide.
00:24Don't be stable, but after a long time, the wooden piles will rot and break due to the impact of the current sooner or later.
00:32After thinking hard and using chopsticks to simulate, you suddenly found that two beams were put on the longitudinal side under the beam, stuck on the inclined column,
00:41so that the crossbeam and the inclined column checked and balanced each other, and the more you pressed, the more stable it was.
00:48In this way, reasonable wooden piles can be removed and used less.
00:52However, the bridge deck is still simple and difficult to walk, which is not difficult for the smart you,
00:57so you use paper bamboo shoots, swallow-tailed bamboo shoots, and bull-headed beams to assemble and intersperse,
01:04so that the wooden nose bites, increasing the bridge deck, so that they can jointly bear and transmit the downward gravity of the bridge body.
01:12At the same time, the bridge deck is fixed with crossed wood to prevent the bridge body from shaking left and right,
01:18and finally, the timber bridge deck is laid at both ends of the bridge.
01:22Congratulations! You have invented the ancient wooden arch bridge with side beams.
Be the first to comment