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Archimedean spiral hyperbolic spiral Fermat's spiral lituus logarithmic spiral Cornu spiral spiral of Theodorus Fibonacci Spiral (golden spiral) The involute...

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

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...

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...

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: 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...

central bulge, at the ends of which the spiral arms begin. The proportion of barred spirals relative to barless spirals has likely changed over the history...

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...

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

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 the...

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

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 in...

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...

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...

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...

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

individually distinguished by the naked eye. The Milky Way is a barred spiral galaxy with a D25 isophotal diameter estimated at 26.8 ± 1.1 kiloparsecs...

between Beck and Ken Wilber produced Spiral Dynamics Integral (SDi). Several variations of Spiral Dynamics continue to exist, both independently and incorporated...

to their distance from the spiral center, contrasting with the Archimedean spiral (for which this distance is invariant) and the logarithmic spiral (for...