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Valknut variations. On the left unicursal trefoil forms; on the right tricursal linked triangle forms.. The valknut is a symbol consisting of three interlocked triangles.It appears on a variety of objects from the archaeological record of the ancient Germanic peoples.
The Merkel-Raute [1] (German for "Merkel rhombus"), termed the Merkel diamond [2] or Triangle of Power by English-speaking media, [3] is a hand gesture made by resting one's hands in front of the stomach so that the fingertips meet, with the thumbs and index fingers forming a rough quadrangular shape.
Relatedly, when embedded into Euclidean space, the Möbius strip has only one side. A three-dimensional object that slides one time around the surface of the strip is not mirrored, but instead returns to the same point of the strip on what appears locally to be its other side, showing that both positions are really part of a single side.
Main problem: all demographics listed for each color need a source. This section has multiple sources, but most key points don't have a clear attribution. Please put sources at the end of each dot point or sentence, if a sentence or dot point has multiple sources add a list or quote to each reference to clearly indicate which points it supports.
This is a list of two-dimensional geometric shapes in Euclidean and other geometries. For mathematical objects in more dimensions, see list of mathematical shapes. For a broader scope, see list of shapes.
Interlaced triquetra which is a trefoil knot. The triquetra (/ t r aɪ ˈ k w ɛ t r ə / try-KWEH-truh; from the Latin adjective triquetrus "three-cornered") is a triangular figure composed of three interlaced arcs, or (equivalently) three overlapping vesicae piscis lens shapes.
Gambian dalasi coin, a Reuleaux heptagon. In geometry, a Reuleaux polygon is a curve of constant width made up of circular arcs of constant radius. [1] These shapes are named after their prototypical example, the Reuleaux triangle, which in turn is named after 19th-century German engineer Franz Reuleaux. [2]
Early on, prisoners perceived as gay men were variously identified with a green triangle (indicating criminals) or red triangle (political prisoners), the number 175 (referring to Paragraph 175, the section of the German penal code criminalizing homosexual activity), or the letter A (which stood for Arschficker, literally "arse fucker"). [6]