The long line of transmission towers across Lake Pontchartrain offers a surprisingly simple way to see Earth's curvature. As the towers stretch farther into the distance, more of their lower sections disappear below the horizon while the tops remain visible. This effect matches what scientists expect on a spherical planet and agrees with centuries of observations, modern surveying techniques, and measurements made from satellites in orbit. Source: National Aeronautics and Space Administration. Earth Fact Sheet. NASA, nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html. Want more interesting content like this ? Follow gravitonomy :) #science #flatearth #earth #space #physics