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2026-08-19

That tiny hole in an airplane window is there on purpose.

Daily Curious Fact
Daily Curious Fact@Val Nwosu
That tiny dot in an airplane window is a deliberate bleed or breather hole. 1 It helps equalize pressure between the cabin and the space between the window panes, so the outer pane carries most of the pressure difference. 2 It also helps limit condensation between the layers. 3

References

  1. 1
    Aerospace Global News: Why aircraft windows have little holes in them

    aerospaceglobalnews.com

  2. 2
    FlightRight: The Small Hole in the Airplane Window

    flightright.com

  3. 3
    Mental Floss: Why Do Airplane Windows Have Tiny Holes?

    mentalfloss.com

Daily Curious Fact
Daily Curious Fact@Val Nwosu

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