@untoldvault2: ✈️ WHY PLANE WINDOWS ARE ROUND Why are plane windows round? It took two jetliner disasters to find out. ✈️ In 1954, two de Havilland Comets, the world's first jet airliners, broke apart in mid-air. To find out why, investigators sank an entire fuselage in a giant water tank and pressurized it again and again, simulating thousands of flights. After about 3,000 cycles, it cracked open at the corner of a squarish window. Every flight, a plane's cabin is pressurized and swells slightly. Sharp corners concentrate that stress, so tiny cracks start growing there. Rounded corners spread the stress out evenly. The lessons from the Comet changed how every airliner is designed and tested. 🎬 Visuals are AI-generated recreations for illustration. 📚 Sources: FAA Lessons Learned, UK Royal Aircraft Establishment investigation Did you know this? 👇 #engineering #aviation #planes #History #physics

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Friday 25 September 2026 11:05:15 GMT