Over the past several years, Twitter user @Ben_On_The_Moon photographed his chain link fence to follow the progression of a mysterious weathering pattern that has caused groups of concentric rings to appear on the upper side of the fence’s segments.
His macro photographs emphasize the intriguing apparitions, which appear like miniature crop circles on the metal bars. Despite his research, he has not discovered the specific cause of the pattern.
Do you know why it happens? Let us know if you do!