Question

what is circular horizen how does it prove the shape of the earth​

Answer 1

Answer:

From a point above Earth's surface, the horizon appears slightly convex; it is a circular arc. The following formula expresses the basic geometrical relationship between this visual curvature , the altitude , and Earth's radius : The curvature is the reciprocal of the curvature angular radius in radians

1. Watch a ship sail off to sea

2. Watch a lunar eclipse

3. Climb a tree

4. Travel through, or even within, different time zones

5. Watch a sunset

6. Measure shadows across the country

7. Google "International Space Station photos"