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Homoeoid and focaloid

A homoeoid or homeoid is a shell (a bounded region) bounded by two concentric, similar ellipses (in 2D) or ellipsoids (in 3D). When the thickness of the shell becomes negligible, it is called a thin homoeoid. The name homoeoid was coined by Lord Kelvin and Peter Tait. Closely related is the focaloid, a shell between concentric, confocal ellipses or…

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Shell theoremPotential
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Overview

ConcentricSimilarEllipsesEllipsoidsLord Kelvin
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  • Limit Limit (mathematics)

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Homoeoid and focaloid

Nodes14
Edges13
Triples0
Avg. degree1.86
Density0.142857
Components1

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shell homoeoid concentric ellipses ellipsoids thin charge two focaloid potential similar confocal focaloids matter test particle homeoid bounded region 2d

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