In eighteen thirty eight, a man named Samuel Rowbotham ran an experiment on a six mile stretch of canal in England. He placed a telescope a few inches above the water and looked at a marker on the other end, the same height above the water. On a curved Earth, that marker should have sunk nearly twenty four feet below the line of sight. It did not. He saw it clearly. The experiment was repeated, tested, and challenged for decades. So ask yourself why the results were so inconvenient for the globe. Original content.