Spirals

galaxy having a number of arms of younger stars that spiral out from the centre containing older ones

right|thumb|Cutaway of a nautilus shell showing the chambers arranged in an approximately [[logarithmic spiral]] In mathematics, a spiral is a curve which emanates from a point, moving further away as it revolves around the point. It is a subtype of whorled patterns, a broad group that also includes concentric objects.

spiral with constant width between its turnings; in polar coordinates, distance from the origin is linearly proportional to angle

self-similar growth spiral whose curvature pattern appears frequently in nature

right|thumb|Examples of Ionic volutes. From Julien David LeRoy, Les ruines plus beaux des monuments de la Grèce, Paris, 1758 (Plate XX) A volute is a spiral, scroll-like ornament that forms the basis of the Ionic order, found in the capital of the Ionic column. It was later incorporated into Corinthian order and Composite column capitals. Four are normally to be found on an Ionic capital, eight on Composite capitals and smaller versions (sometimes called helix) on the Corinthian capital.

arc crossing all meridians of longitude at the same angle

a visualization of the prime numbers formed by arranging the integers into a spiral

plane curve given by Fresnel integrals such that the curvature increases linearly with curve length

special function defined by an integral

structure of currents or winds near a horizontal boundary in which the flow direction rotates as one moves away from the boundary

is a Japanese horror manga series written and illustrated by Junji Ito. Appearing as a serial in Shogakukan's weekly Seinen manga| manga magazine Big Comic Spirits from 1998 to 1999, the chapters were compiled into three bound volumes published from August 1998 to September 1999. In March 2000, Shogakukan released an omnibus edition, followed by a second omnibus version in August 2010. In North America, Viz Media serialized an English-language translation of the series in its monthly magazine Pulp from February 2001 to August 2002. Viz Media then published the volumes from October 2001 to Octo

risk-driven process model for software projects

Mathematical curve

plane curve

plane curve

spiral composed of right triangles, placed edge-to-edge

spiral

component a of spiral galaxy

surface which separates the heliosphere into positively and negatively charged components

increasing degree of curvature

earthwork sculpture by Robert Smithson in Box Elder County, Utah, United States

treatise by Archimedes about the Archimedean spiral

railway feature

two spirals represented by polar equations

part of a shark intestine

patch of hair growing in a circular direction around a visible center point

Spiral-like light observed in December 2009 in the night sky over Norway

This article discusses the geometric figure; for the science-fiction character see Spidron (character). alt=|thumb|First spidron created by Dániel Erdély in 1979, consisting of equilateral triangles and the symmetrical obtuse [[isosceles triangles which together form right triangles]] In geometry, a spidron is a continuous flat geometric figure composed entirely of triangles, where, for every pair of joining triangles, each has a leg of the other as one of its legs, and neither has any point inside the interior of the other. A deformed spidron is a three-dimensional figure sharing the other pr

thumb|right|An unfurling Cyathea dealbata|silver fern frond thumb|right|Koru kōwhaiwhai patterns on a rafter from the Ngāti Maru (Hauraki)|Ngāti Maru [[wharenui Hotunui]] thumb|right|The koru flag

Plane curve

type of animated data visualization graphics illustrating global average temperature anomalies and other time-varying quantities in relation to climate change.

type of RF antenna; shaped as a two-arm spiral; first described in 1956

Wikimedia list article

Mathematical tiling

valves in the proximal mucosa of the cystic duct

Device for separating/sorting slurry or particles