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A color wheel or color circle [1] is an abstract illustrative organization of color hues around a circle, which shows the relationships between primary colors, secondary colors, tertiary colors etc. Some sources use the terms color wheel and color circle interchangeably; [ 2 ] [ 3 ] however, one term or the other may be more prevalent in ...
Aristotle's wheel paradox is a paradox or problem appearing in the pseudo-Aristotelian Greek work Mechanica. It states as follows: A wheel is depicted in two-dimensional space as two circles. Its larger, outer circle is tangential to a horizontal surface (e.g. a road that it rolls on), while the smaller, inner one has the same center and is ...
A sun cross, solar cross, or wheel cross is a solar symbol consisting of an equilateral cross inside a circle. The design is frequently found in the symbolism of prehistoric cultures, particularly during the Neolithic to Bronze Age periods of European prehistory. The symbol's ubiquity and apparent importance in prehistoric religion have given ...
An early wheel made of a solid piece of wood. A wheel is a rotating component (typically circular in shape) that is intended to turn on an axle bearing. The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating ...
The Medicine Wheel in Bighorn National Forest, Wyoming, US. Historically, most medicine wheels follow a similar pattern of a central circle or cluster of stones, surrounded by an outer ring of stones, along with "spokes" (lines of rocks) radiating from the center out to the surrounding ring. Often, but not always, the spokes may be aligned to ...
The Black Sun symbol. The Black Sun (German: Schwarze Sonne) is a type of sun wheel (German: Sonnenrad) [1][2] symbol originating in Nazi Germany and later employed by neo-Nazis and other far-right individuals and groups. The symbol's design consists of twelve radial sig runes, similar to the symbols employed by the SS in their logo.
Circle of fifths showing major and minor keys. In music theory, the circle of fifths (sometimes also cycle of fifths) is a way of organizing pitches as a sequence of perfect fifths. Starting on a C, and using the standard system of tuning for Western music (12-tone equal temperament), the sequence is: C, G, D, A, E, B, F ♯ /G ♭, C ♯ /D ...
Depiction of a chakravartin, possibly Ashoka, with a 16-spoked wheel (1st century BCE/CE) The Ashoka Chakra (Transl: Ashoka 's wheel) is an Indian symbol which is a depiction of the dharmachakra (English: "wheel of dharma "). It is so-called because it appears on a number of edicts of Ashoka the Great, [ 1 ] most among which is the Lion Capital ...