@amazeifystore: Why do planes have round windows? The answer isn't about aesthetics—it was a lesson learned through tragedy and the discovery of a "ghost in the machine" known as metal fatigue. In the early 1950s, the de Havilland Comet was a masterpiece of British engineering and the world's first commercial jetliner. But as it pushed the boundaries of altitude and speed, a hidden flaw in its design began a silent countdown to disaster. In this video, we explore the engineering science behind the Comet's failure, the physics of stress concentration, and how a giant water tank helped solve one of aviation's greatest mysteries. What you'll learn: - The physics of pressurized cabins at 35,000 feet. - Why square windows are an engineering "trap." - The science of metal fatigue and how aluminum "remembers" stress. - How the failure of the first jetliner made modern air travel safer for everyone. If you enjoyed this deep dive into the hidden mechanics of history, please like and subscribe for more engineering case files. #Engineering #AviationHistory #Science #DeHavillandComet #Aerospace #Documentary

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