Pi Crop Circles Crop Circles Symbols Adjustable Open Ring

Pi is a mathematical constant that expresses the ratio of the circumference of a circle to its diameter. This crop circle is exactly what you would expect from highly intelligent aliens trying to communicate with the inhabitants of Earth using the universal symbols of astronomy and mathematics. These crop circles are one of the arguments in favor of their cosmic origin.
At Barbury Castle on the 1st of June in 2008, was found what is called an image of a rotating encoder expressing the value of the universal mathematical constant pi to the tenth decimal place after the decimal point, namely 3.141592654.