Cone

From Wikipedia, the free encyclopedia

A cone (from the Greek κῶνος, Latin conu) is a basic geometrical shape; see cone (geometry).

Cone may also refer to:

• 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
• Cone snail, a carnivorous molluscs of the family Conidae
• Elizabethan collar, a cone-shaped collar worn by pets
• Ice cream cone, an edible container in which ice cream is served, shaped like an inverted cone open at its top
• Pyrometric cone, in ceramic manufacture, a contolled mixture of minerals used to gauge the extent of firing
• Traffic cone, a brightly colored cone-shaped plastic object commonly used as a temporary traffic barrier or warning sign
• Skid cone, a cone like object place before a log in forrestry
• Volcanic cone, a mountain formed by material ejected from a volcanic vent
• A type of optical fiber that tapers almost to a point
• The part of a loudspeaker that moves the air, creating sound waves constantly
• A colloquial Australian term for cannabis, most commonly a bong load or 'bowl' of cannabis
• In cartography, a type of projection; see map projection

As a proper name:

• Cone (software), a text-based e-mail and news client for Unix-like operating systems
• David Cone, retired baseball pitcher
• Fairfax M. Cone, an American advertising executive
• Jason McCaslin, nicknamed Cone, bassist for the Canadian band Sum 41

In mathematics:

• Cone (geometry), a basic solid shape
• Cone (category theory), a family of morphisms resembling a geometric cone
• Cone (formal languages), an abstract family of languages that contains the languages with a regular grammar
• Cone (linear algebra), a subset of vector space closed under positive scaling
• Cone (topology) of a set X, namely the union of all line segments connecting a fixed point to points of X
• Cone graph, in graph theory, a graph with a universal vertex
• Conic section, any curve obtained by cutting a conical surface by an arbitrary plane
• Conical surface, generated by a moving line with one fixed point
• Convex cone, a special case of the above that is closed under convex combinations
• Mapping cone (homological algebra) of a map of chain complexes
• Projective cone, a similar (but more general) concept in projective geometry
• Conical projection, either a central projection or a perspective projection

[edit] See also

• KONE