Flights & Access
It is a precision pressure valve, and it is the reason your photo of a Himalayan skyline from 35,000 feet doesn't come out fogged over.
By Laxman Rawal · Sep 5, 2026
Look at any airplane window on your next flight and you'll spot it: a pinprick hole near the bottom corner of the middle pane, easy to mistake for a manufacturing defect. It isn't. It's doing exact, precise engineering work every second you're in the air, and…
Travel Himalaya Nepal · News
What this means for you Every clear-day photo of the Annapurna or Everest skyline you've ever taken from a plane window owes something to that unglamorous little hole. Nepal's short mountain flights and helicopter tours put you closer to 8,000-metre peaks…
Travel Himalaya Nepal · News
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