>>11247979>by indicating some simple fact which they can see with their own eyes or agree with according to their experience?OK I get where you are going.
Here is another video for you.
https://youtu.be/CGjFAe018oAAccording to this there are three simple experiments anyone can do to check the Earth's curvature.
1. Go to a bay or lake with ships and check out those furthest away from the shore. (maybe with a pair of binoculars). The ships bottom halves should not be visible, proving the curvature.
2. Build a sun dial aka sun clock, and take it to two different cities at the same hour. The angle of the shadow should be different at the same GMT hour of the day. (it's the reason we have time zones). The Greeks actually used this to calculate the circumpherence of the Earth, accurately, 2000 years ago.
3. Wait for a lunar eclipse, which is actually the round shadow of the Earth covering the Moon.
