Yesterday in tech we learned about different materials, and how some stretch and some fracture. We studied examples like the Titanic, and one example that I found especially interesting was the Tacoma Narrows bridge collapse. What happened was that due to 42 mph winds, the bridge started curving and moving, almost like a rollercoaster. This happened because the bridge was made of steel, which can stretch. Steel first stretches, then forms a neck, where all the pressure is applied, and eventually that’s where the steel breaks. That’s what happened with the Tacoma Narrows bridge.

Click here to watch a real video of what happened to the bridge! It shows the hard steel bending and curving, and it looks amazing!