Google logo - Crop Circle
Like Google logo on 5th Sept - Unexplained Phenomenon, Google released another logo - Crop Circle.
Crop circles are patterns created by the flattening of crops such as wheat, barley, rapeseed (also called "canola"), rye, corn, linseed, rice paddies and soy. The term was first used by paranormal researcher Colin Andrews to describe simple circles he was researching. While patterns involving complex geometries have been observed, the term circle has stuck as a generic term for crop patterns.
