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Trump confirms plan to declare national emergency, use military for mass deportations (abcnews.go.com)
submitted 2 years ago by to c/aboringdystopia@lemmy.world
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[–] 2 points 2 years ago (1 child)

Planes don't maintain sea-level atmospheric pressure the whole time. That's why your ears pop in-flight.

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  • [–] 1 point 2 years ago*

    They barely ever do. Only when landing to an airport at sea level. Upon take off, the cabin pressure is gradually increased until the regulatory 8000 ft, which is maintained majority of the flight.

    You experience the same pressure changes while driving in the mountains, with the good ol' ear popping.

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