Like the duocylinder, it is also analogous to a cylinder in 3-space, which is the Cartesian product of a disk with a line segment. It can be seen in 3-dimensional space by stereographic projection as two concentric spheres, in a similar way that a tesseract (cubic prism) can be projected as two concentric cubes. ==Relation to other shapes== In 3-s...
Found on http://en.wikipedia.org/wiki/Spherinder


noun [Jonathan Bowers] A four dimensional hypercylinder that can roll around in a planar region. It can be formed by extending a sphere into tetraspace linearly. See the chart under rotatope.
Found on http://www.translationdirectory.com/glossaries/glossary141.htm
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