I knew a little bit about how arches work, but I didn’t know how they related to hanging chains. If you’ve never taken an engineering course, this lesson might blow your mind. The concept is described in a clear and concise way at the beginning, but the further you go into how arches and chains actually work, the more interesting it gets. We may laugh at the lack of medical knowledge up through the medieval era, but at the same time engineers and architects were transforming their physics observations and experiments into amazing bridges and cathedrals that are still in use hundreds of years later. After watching this video from Engineering Models, I feel like I have learned an awful lot in just a few minutes.
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If you enjoyed that and want more, the same channel explains the physics that govern the designs of
suspension bridges, Gothic cathedrals, dams, retaining walls, silos and tanks, and tunnels and culverts. -via Nag on the Lake
Source: neatorama