Simple and Irrefutable Proof that Earth is a Sphere
Simple and Irrefutable Proof that Earth is a Sphere This is the simplest way I know to prove the shape of the Earth. It does not involve any physics or mathematics and does not rely on the type of observations that flat earthers like to dismiss by invoking perspective or other subjects that they don't understand. If there is no error in this proof then ALL flat earth arguments are wrong. There is no error. Absolute proof that Earth is not flat: The stars appear to revolve anti-clockwise around the North Pole with the Pole Star, or Polaris, appearing virtually motionless. Everyone agrees about that, but there is problem for flat earth. The star trails are always circular, which means that the apparent motion of each star is on a plane perpendicular to the observer's line of sight to Polaris. That fits the globe model perfectly, but on a flat earth the star trails should only be circular at the North Pole and should become increasingly elliptical as the observer moves sou...