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How come you can see airplane by the naked eye when it's 10 000 meters high ?

I was thinking, if you would stand on an empty field, and if airplane would be 10 kilometers far from you at the field, you wouldn't be able to see it. Why we can see it in air at such distance ?

2 Answers

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  • 5 years ago

    It's a straight shot upwards. 10 km along the surface, you have to deal with curvature of the earth, which is always turning away from you.

  • ?
    Lv 7
    5 years ago

    There's nothing cluttering up the view.

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