File Under ‘The More You Know’: Plane Windows Are Round To Save Your Ass

If the 209,792 Insta posts with the hashtag #windowseat are anything to go by, it’s near impossible to sit in the most coveted plane possie and not take a straight A pic.
TFW your window seat pic get 13 likes.
You ever wondered why the windows you’re looking out of be round, though? No? Well there’s a good reason, anyway: it’s to prevent you from dying and/or bursting into a million pieces. 
Back when our grandparents developed #wanderlust in the 50’s, aeroplanes started flying at higher altitudes to avoid turbulence and drag.
But, the higher up they went, the harder it became for us mere mortals to breathe because the planes had square windows that couldn’t hack the expansion.
That resulted in utter fucking disaster in more than one case (a plane’s body once cracked and disintegrated, tragically killing 43 on board).
Then along came the ~pressurised cabin~ inside the ~cylindrical body~, allowing for the expansion that inevitably occurs 30,000 feet above earth and (*breathes sigh of relief*) we’ve travelled in relative safety ever since. 
Here’s an explainer video for dummies (us all), courtesy of the smart folks over at Real Engineering:
We’ve come a long way since… though it looks like it’ll be at least another 63 years ’til this is a reality:

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