TITLE

# cone

PUB. DATE
January 2009
SOURCE
American Heritage Student Science Dictionary;2009, p79
SOURCE TYPE
Book
DOC. TYPE
Reference Entry
ABSTRACT
A description of cone is given. A cone is known as a three-dimensional surface or solid object in which the base is a circle and the sides narrow to form a point. The surface of a cone is formed mathematically by moving a line that passes through a fixed point (the vertex) along a circle.
ACCESSION #
20849850

## Related Articles

• arc.  // American Heritage Student Science Dictionary;2009, p20

A definition of the term "arc" is presented. It refers to a segment of a circle.

• cirÂ·cle.  // American Heritage Student Science Dictionary;2009, p70

A definition of the term "circle" is presented. It refers to a closed curve whose points are all on the same plane and at the same distance from a fixed point. A diagram of a circle is outlined.

• ansiform.  // Taber's Cyclopedic Medical Dictionary;2005, p128

A definition of the term "ansiform" is presented. Ansiform means shaped like a loop. The term originated from the words "ansa" and "forma" which means a handle and shape, respectively. The definition is from the "Taber's Cyclopedic Medical Dictionary," published by F. A. Davis Co. The...

• spherical.  // Taber's Cyclopedic Medical Dictionary;2005, p2041

The article presents a definition for the term "spherical," which refers to a sphere.

• Streams of Cylindrical Water. Morgan, Frank // Mathematical Intelligencer;Summer2004, Vol. 26 Issue 3, p70

Discusses the round sphere and a cubical salt crystal as examples of Wuff shapes. Claim of A. D. Alexandrov in his theorem regarding the unit sphere; Presence of cylindrical analogs of the unduloid; Reduction of the proof to a question about curves in the plane.

• CIRCUMSCRIBED SHAPES ARE ENLARGED: IS THIS A VARIATION OF THE DELBOEUF ILLUSION? Jaeger, Ted // Perceptual & Motor Skills;Jun2007 Part2, Vol. 104 Issue 3, p1116

Pairs of complex shapes, for example, two golf holes or two hands making a peace sign, were printed on cards with one of the two shapes surrounded by a circle. 20 participants judged the size of the unenclosed shapes relative to the size of the enclosed ones. For 12 pairs in which there were...

• Effect of Screen Contrast Ratio and Luminance Level on Visual Lobe Shape. Chiu, Cathy H. Y.; Chan, Alan H. S. // International MultiConference of Engineers & Computer Scientists;2008, p1846

The effects of screen contrast ratio, luminance level, and their interaction on visual lobe shape were examined in this study. The results showed that luminance level showed noticeable effects only on lobe perimeter. Though slightly larger area was noted upon increasing luminance level, none of...

• Apollonius' problem.  // Hutchinson Dictionary of Scientific Biography;2005, p1

Problem set by Apollonius of Perga, to describe a circle touching three other given circles.

• Characterization of the Cone of Attainable Directions. Jiménez, B.; Novo, V. // Journal of Optimization Theory & Applications;Dec2006, Vol. 131 Issue 3, p439

A useful characterization of the cone of attainable directions is provided.

Share