Observing Earth’s Curvature on a Flight

Earth’s curvature is hard to observe from the surface. Even from the altitude of a commercial passenger flight, about 30000-40000 ft, Earth’s curvature is still too small to notice. However, under careful observation, it is not impossible to confirm the curve from the cruising altitude of a jet airliner.

Continue reading “Observing Earth’s Curvature on a Flight”