Succinctly — The surfaces of spheres are as the squares of their radii.
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Limited sphere" — A sphere is necessarily limited. I prefer tautology to a chance of misconception.
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Laplace assumed his nebulosity heterogeneous, merely that he might be thus enabled to account for the breaking up of the rings; for had the nebulosity been homogeneous, they would not have broken. I reach the same result — heterogeneity of the secondary masses immediately resulting from the atoms — purely from an a priori consideration of their general design — Relation.
