Pi Day is celebrated today, 14 March, round the world. Pi (Greek letter π) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159. Pi has been calculated to over one trillion digits beyond its decimal point. As an irrational and transcendental number, it will continue infinitely without repetition or pattern.

11 February 2016 – More than ever today, the world needs science and science needs women, the Director-General of the United Nations Educational, Scientific and Cultural Organization (UNESCO) said today marking the first