In mathematics, a spiral is a curve which emanates from a point, moving farther away as it revolves around the point. It is a subtype of whorled patterns...

around the point. Spiral may also refer to: Spiral galaxy, a type of galaxy in astronomy Spiral Dynamics, a theory of human development Spiral cleavage...

The Downward Spiral is the second studio album by the American industrial rock band Nine Inch Nails, released on March 8, 1994, by Nothing Records in...

In geometry, a golden spiral is a logarithmic spiral whose growth factor is φ, the golden ratio. That is, a golden spiral gets wider (or further from...

Spiral: From the Book of Saw (or simply Spiral) is a 2021 American horror-thriller film directed by Darren Lynn Bousman and written by Josh Stolberg and...

Spiral (Rita Wayword) is a character appearing in American comic books published by Marvel Comics, usually those featuring the X-Men family of characters...

Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae and, as such, form part of the Hubble...

Look up spiral staircase in Wiktionary, the free dictionary. A spiral staircase is a type of stairway characterized by its helical shape Spiral Staircase...

spiral, equiangular spiral, or growth spiral is a self-similar spiral curve that often appears in nature. The first to describe a logarithmic spiral was...

The spiral model is a risk-driven software development process model. Based on the unique risk patterns of a given project, the spiral model guides a team...

The Ulam spiral or prime spiral is a graphical depiction of the set of prime numbers, devised by mathematician Stanisław Ulam in 1963 and popularized...

A spiral fracture (a.k.a. torsion fracture) is a bone fracture occurring when torque (a rotating force) is applied along the axis of a bone. Spiral fractures...

Spiral Dynamics (SD) is a model of the evolutionary development of individuals, organizations, and societies. It was initially developed by Don Edward...

A Magellanic spiral galaxy is a spiral galaxy with only one spiral arm. Magellanic spiral galaxies are classified as the type Sm (with sub-categories...

Spiral bacteria, bacteria of spiral (helical) shape, form the third major morphological category of prokaryotes along with the rod-shaped bacilli and round...

light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye. The Milky Way is a barred spiral galaxy with a...

The Fraser spiral illusion is an optical illusion that was first described by the British psychologist Sir James Fraser (1863–1936) in 1908. The illusion...

In geometry, the spiral of Theodorus (also called the square root spiral, Pythagorean spiral, or Pythagoras's snail) is a spiral composed of right triangles...

names for this phenomenon include suicide spiral, deadly spiral, death spiral and vicious spiral. Graveyard spirals are most common at night or in poor weather...

Look up death spiral in Wiktionary, the free dictionary. Death spiral may refer to: Aircraft flight: Graveyard spiral Spiral dive Death spiral (figure skating)...

Spiral Jetty is an earthwork sculpture constructed in April 1970 that is considered to be the most important work of American sculptor Robert Smithson...

A spiral antenna is a type of radio frequency antenna shaped as a spiral,:  14‑2  first described in 1956. Archimedean spiral antennas are the most popular...

The term spiral separator can refer to either a device for separating slurry components by density (wet spiral separators), or for a device for sorting...

The Archimedean spiral (also known as the arithmetic spiral) is a spiral named after the 3rd-century BC Greek mathematician Archimedes. It is the locus...

Spiral arteries are small arteries which temporarily supply blood to the endometrium of the uterus during the luteal phase of the menstrual cycle. In...

Fermat's spiral or parabolic spiral is a plane curve with the property that the area between any two consecutive full turns around the spiral is invariant...

barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars. Bars are found in about two thirds of all spiral galaxies...

"death spiral" because the ants might eventually die of exhaustion. It has been reproduced in laboratories and in ant colony simulations. The phenomenon...

Curschmann's spirals are a microscopic finding in the sputum of asthmatics. They are spiral-shaped mucus plugs from subepithelial mucous gland ducts of...

In macroeconomics, a wage-price spiral (also called a wage/price spiral or price/wage spiral) is a proposed explanation for inflation, in which wage increases...