As you gaze out from your plane at take-off or during a long flight, do you notice the shape of your seat window? Maybe, maybe not, but you most likely take it for granted that the window is there for you gaze out and see the cloud or beautiful sky outside. Have you wonder why is its shape round (or oval)? It used to be square but that shape caused the tragic crashes of three planes in the 1950s. This forced the designers to change it to the round shape that is seen in all airplanes today. Why the round shape? Find out in the video below:
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