In the USA on the river there were rotating circles

Ideal circles seldom arise in the nature, but Cailyn Messer, the photographer from the city of Nort-Bend in the State of Washington (USA), could film an ice disk.

“I rejoiced when I saw that the circle still whole and rotates. I spent day, watching its sluggish rotations and listening to an ice roar. Several pieces of ice broke away from almost ideal circle”.

Ice circles meet very seldom. The largest of similar ice disks had a diameter of 17 meters.