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en.wikipedia.org/wiki/Cone_cell

Cone cells, or cones, are one of three types of photoreceptor cells in the retina of mammalian eyes (e.g. the human eye). They are responsible for color vision ...

en.wikipedia.org/wiki/Cone

A cone is a three-dimensional geometric shape that tapers smoothly from a flat base to a point called the apex or vertex. A cone is formed by a set of line ...

www.amazon.com/Champion-Sports-Visibility-Fluorescent-Plastic/dp/B000TVK3U2

Create an obstacle course, mark boundaries, or practice agility with the Hi- Visibility fluorescent poly Cone set. These Hi-Visibility fluorescent poly cones are a ...

mathworld.wolfram.com/Cone.html

In general, a cone is a pyramid with a circular cross section. A right cone is a cone with its vertex above the center of its base. However, when used without ...

www.dictionary.com/browse/cone

Cone definition, a solid whose surface is generated by a line passing through a fixed point and a fixed plane curve not containing the point, consisting of two ...

hyperphysics.phy-astr.gsu.edu/hbase/vision/rodcone.html

The retina contains two types of photoreceptors, rods and cones. The rods are more numerous, some 120 million, and are more sensitive than the cones.

www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_9/ch9p1.html

Rods & Cones. There are two types of photoreceptors in the human retina, rods and cones. Rods are responsible for vision at low light levels (scotopic vision).

www.khanacademy.org/math/basic-geo/basic-geo-volume-sa/volume-cones/v/volume-cone-example

The formula for the volume of a cone is V=1/3hπr². Learn how to use this formula to solve an example problem.

www.urbandictionary.com/define.php?term=cone

Metallic cone shaped item in a bong or pipe that the weed is burnt in. Another word for a 'bowl'. Really means 'cone piece' or CP(abrev.) 2. Pro...