Click and watch the video!----->:Nature Imitates Andy Goldsworthy: Rare Ice Disk Forms in North Dakota River
I am uninformed enough to be completely unaware of Andy Goldsworthy . . . my friend probably knows him and all his works . . . but this natural phenomenon must exceed anything a human could produce. My first thoughts, when I saw the video and the pictures, were of high school geometry, and my teacher telling me that there was no such thing as a perfect circle.