There's endless amounts of people buying relatively cheap p900 and p1000 cameras and filming all kinds of videos of the ocean being completely level.. using multiple reference points like buoys and other objects just to debunk the mystical and selective "bending around the curve mirage" that the news tells you. People are testing this over water, over ice, over the salt flats. There is a convex/concave effect that can bend the horizon upward as well as downward depending on the moisture in the air. Light refraction is still a thing, but it is not the end all be all debunking of people seeing across the plane. There are more and more people testing this out and getting the same results and actually using real repeatable testable science for this..
There's endless amounts of people buying relatively cheap p900 and p1000 cameras and filming all kinds of videos of the ocean being completely level.. using multiple reference points like buoys and other objects just to debunk the mystical and selective "bending around the curve mirage" that the news tells you. People are testing this over water, over ice, over the salt flats. There is a convex/concave effect that can bend the horizon upward as well as downward depending on the moisture in the air. Light refraction is still a thing, but it is not the end all be all debunking of people seeing across the plane. There are more and more people testing this out and getting the same results and actually using real repeatable testable science for this..