Pi day: 3.14.15 (at 9:26:53, you had the first 10 places of pi)

Pi is a real number—a transcendental number, in fact—defined as the ratio of the circumference of a circle to its diameter in Euclidean geometry, something the writer of this NY Times article apparently does not know. (He defines pi as the ratio of the circumference of a circle to its diameter, which varies according to the geometry used, but in fact pi specifically defines a particular real number and the value of pi does not vary.)

Here are some colorful and interesting graphical representations of the digits of pi. One example: