Circumference pi, is represented by the Greek letter . The first few decimal digits of the numerical value of are 3.141592653589793 ... Pi is defined as the ratio of a circle's circumference to its diameter : Or, equivalently, as the ratio of the circumference to twice the radius. The above formula can be rearranged to solve for the circumference: The use of the mathematical constant is ubiquitous in mathematics, engineering, and science. In "Measurement of a Circle" written circa 250 BCE, Archimedes showed that this ratio (, since he did not use the name ) was greater than 3 but less
A Huge Ever Growing Pulsating Brain That Rules from the Centre of the Ultraworld A Huge Ever Growing Pulsating Brain That Rules from the Centre of the Ultraworld "A Huge Ever Growing Pulsating Brain That Rules from the Centre of the Ultraworld" is the debut single by the ambient house group The Orb. It was originally released in October 1989 and made the UK Singles Chart in 1990, peaking at #78. The 'Peel Session' version was also voted into #10 place in John Peel's 1990 Festive Fifty. In April 1991, it was released on the debut album "The Orb's Adventures Beyond the Ultraworld". The title is taken from a sound effects track from "Blake's