13:067个‘悄无声息’阻碍宝宝发育的无心习惯
7 Innocent Habits That "Silently" Stunt Your Baby's Development
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hidden.systemsdoc
Bridge, tunnel, dam and machine is hiding an engineering trick you never see. Hidden Systems cuts the world open in 3D to show how things actually work: the oil rig anchored to the ocean floor, the airport sinking into the sea, the frozen wall that keeps a subway station dry, the giant flood cathedral hidden under Tokyo. Each Short starts with a problem that should be impossible and ends with the clever solution engineers came up with. Megastructures & infrastructure Underwater and underground engineering Everyday things with hidden machinery Extreme physics and safety systems
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