A closer look
Because nobody likes a side of explosive decompression with their roasted peanuts. Early commercial jets featured standard square windows until the 1950s, when a series of horrific mid-air disintegrations forced engineers back to the drawing board. It turns out sharp corners are massive stress concentrators that tear the fuselage apart under high cabin pressure. So, those cute, rounded windows aren't a mid-century aesthetic choice—they're literally the only reason you don't get sucked into the stratosphere.
