The antipode of a point on Earth is the point opposite to it. Any flights between the two points should cover approximately the same distance, no matter the direction it travels. These flights cannot be explained by the flat-Earth model and can be used to rule out a flat Earth.
For this purpose, we need two large airports, with the position of one airport as close as possible to the antipodal point of the second airport. To determine these ideal antipodal pairs, I used the data from
Top 1000 busiest airports in the world and OpenFlights for the coordinates. First ... Read even more
