The airplane cabin is
pressurized. Why do our ears still pop? I got lots of help with this
one, thank you all. As I can best summarize, it’s because the cabin is
not necessarily pressurized to the altitude we took off from or landed
at. We might take off from here at sea level and land at Denver, a mile
high. In the meantime, the cabin pressure might be set for 6,000 or 8,000
feet during flight. We go through several altitude equivalents during a
single flight. That’s plenty of differential to get the ears to popping!
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