Cone
From Wikipedia, the free encyclopedia
Cone (from the Greek κώνος, Latin conu) is a basic geometrical shape. It may also refer to:
- Volcanic cone, a mountain formed by material ejected from a volcanic vent
- Conifer cone, a seed-bearing organ on conifer plants
- Cone cell, in anatomy, a type of light-sensitive cell found along with rods in the retina of the eye
- Pyrometric cone, in ceramic manufacture, a contolled mixture of minerals used to gauge the extent of firing
- Ice cream cone, a container for ice cream, shaped like an inverted cone open at its top
- Traffic cone, a brightly colored cone-shaped plastic object commonly used as a temporary traffic barrier or warning sign
- Cone, the name given to an optical fibre that tapers almost to a point
- Cone, a part of a loudspeaker that moves the air, creating sound waves
- Gastropods (snails) of the genus Conus.
In mathematics:
- Cone (geometry), the basic shape
- The cone of an arbitrary set X means the union of all line segments connecting a fixed point to points of X. For example, this coning operation will turn a triangle into a tetrahedron.
- Conic solid, the cone of a plane figure.
- Projective cone, a similar (but more general) concept in projective geometry
- Conical surface, generated by a moving line with one fixed point
- Conic section, any curve obtained by cutting a conical surface by an arbitrary plane
- Cone (topology), in topology, coning may be applied to a topological space
- Mapping cone of a continuous map of topological spaces
- Cone (linear algebra), in linear algebra, a subset of vector space closed under positive scaling
- Convex cone, a cone that is closed under convex combinations
- Cone graph, in graph theory, a graph with a universal vertex
- Central projection, also called "conical projection", in geometry; see also perspective projection
- In cartography, however, a conic (or conical) projection maps the spherical surface of the Earth to a conical surface, that is then unrolled onto a plane; see map projection
- Cone (category theory), a family of morphisms resembling a geometric cone.
Cone can also be a proper name or nickname:
- Cone, the nickname of Jason McCaslin, bassist for the Canadian band Sum 41
- Fairfax M. Cone, an American advertising executive
Mathematics. The surface generated by a straight line, the generator, passing through a fixed point, the vertex, and moving along a fixed curve, the directrix. A right circular cone.
[edit] See also
ca:Conde:Kegel es:Cono fr:Cône is:Keila it:Cono nl:Kegel ja:円錐 pl:Stożek pt:Cone (desambiguação) ru:Кегель ukr:konus
