The Golden Gate Bridge is one of the most photographed pieces of infrastructure ever built. An engineering marvel, this excellent video details its construction and how it works.
Animagraffs breaks the bridge down into understandable pieces without dumbing it down. The video walks through how a suspension bridge actually works, why the towers are shaped the way they are, how the cables distribute load, and why the whole thing is designed to move rather than resist it. Wind, traffic, earthquakes, thermal expansion, the bridge absorbs all of it by design. Rigidity would kill it.
If you have ever driven across the Golden Gate Bridge, you’ve felt it sway slightly beneath you. This video explains why that sensation is not a sign of danger but of competence. This is what infrastructure looks like when it is built by people who understand physics, respect nature, and plan for the long term.
Highly recommended if you like learning how the world actually works.
Too bad they didn't follow that design philosophy with the Tacoma Narrows Bridge.
https://youtu.be/j-zczJXSxnw