Except that it is curved. You can do this experiment for yourself, and prove to yourself that the earth is not flat using something equipment that kids in high school use.
<a href='https://blogs.bath.ac.uk/engdes-student-insights/2018/02/13/launching-a-camera-to-the-edge-of-space-an-introduction/'>https://blogs.bath.ac.uk/engdes-student-insights/2018/02/13/launching-a-camera-to-the-edge-of-space-an-introduction/</a>
<a href='https://www.balloonchallenge.org/gallery'>https://www.balloonchallenge.org/gallery</a>
<a href='https://mashable.com/2017/04/07/diy-space-race-high-altitude-balloons'>https://mashable.com/2017/04/07/diy-space-race-high-altitude-balloons</a>
Except that it is curved. You can do this experiment for yourself, and prove to yourself that the earth is not flat using something equipment that kids in high school use.
<a href='https://blogs.bath.ac.uk/engdes-student-insights/2018/02/13/launching-a-camera-to-the-edge-of-space-an-introduction/'>https://blogs.bath.ac.uk/engdes-student-insights/2018/02/13/launching-a-camera-to-the-edge-of-space-an-introduction/</a>
<a href='https://www.balloonchallenge.org/gallery'>https://www.balloonchallenge.org/gallery</a>
<a href='https://mashable.com/2017/04/07/diy-space-race-high-altitude-balloons'>https://mashable.com/2017/04/07/diy-space-race-high-altitude-balloons</a>