Characteristics Of A Spiral, Types Of Spirals
A spiral is a curve formed by a point revolving around a fixed axis at an ever-increasing distance. It can be defined by a mathematical function which relates the distance of a point from its origin to the angle at which it is rotated. Some common spirals include the spiral of Archimedes and the hyperbolic spiral. Another type of spiral, called a logarithmic spiral, is found in many instances in nature.
Science EncyclopediaScience & Philosophy: Spectroscopy to Stoma (pl. stomata)