WSphereW3-sphereWBall (mathematics)WCelestial globeWChinese puzzle ballWCircumscribed sphereWClose-packing of equal spheresWDandelin spheresWGlobeWHomotopy groups of spheresWIdeal polyhedronWInscribed sphereWMidsphereWN-sphereWRadiusWRiemann sphereWScience On a SphereWSphere packingWSphere packing in a cylinderWSphere packing in a sphereWSpherical polyhedronWSphericity
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