Many have pondered interesting facts, such as the purpose of the balls on power lines while driving. The colorful balls on power lines serve as visibility markers for pilots to avoid crashing into power lines. The FAA requires these mandatory spherical visibility markers to be placed on power lines in certain places where there’s a higher chances lower altitude aircraft not spotting the power lines. These balls are either called marker balls, aerial marker balls, or visibility markers. The FAA mandates that the balls on power lines be placed on power wires that cross canyons, lakes, and rivers, as well … Continue reading The Witty Precautions Behind Colored Spheres Hanging From Power Lines