Ice Circle or circles of ice is a phenomenon that appears on water that has a slow flow in cold climates. Giant disc resemble consisting of ice and rotate slowly on the surface of the water. The real mystery is never alluded to in the 19th century. An illustration of Ice Circle ever published in the magazine Scientific American in 1895. London News has also reported this phenomenon that occurred in Toronto in 1930.This phenomenon generally appears in Scandinavia and North America, but never once seen in the United Kingdom in January 2009.Ice Circle generally appears on a bend in the river where the water flow that accelerates the creation of a force called "rotational shear", who would later break the ice chunks and twisted it. In line with the rotation of the disc, he was grinding the ice around it so it becomes smooth and forms a perfect circle. This phenomenon even though it identified the cause, however, remains a rare occurrence.
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