The narrator is the same guy who makes those hack videos that don't work , and hardly anyone tries them to find out.
He says in the video , the plane(now high in sky) reaches a equilibrium and lets in *new compressed air* where is all this compressed air coming from ? They never say, not the new compressed air not the original compressed air.
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Save gas
Ride a Mtn bike for errands exercise entertainment and outright fun
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