EntityQ565198· pop 11· linked from 27 articlessphere eversionSign in to savetopological operation of turning a sphere inside-out without creasingConnectionsInternational Standard Book NumberEntitytopologyEntitylineEntityWayback MachineEntitysphereEntitydigital object identifierEntityInternational Standard Serial NumberEntityparadoxEntitythree-dimensional spaceEntityJSTOREntitybibcodeEntityQ118398EntityUniversity of MinnesotaEntitycomputer animationEntitycalculus of variationsEntityWilliam ThurstonEntityStephen SmaleEntityQ22908627EntitySpringer Science+Business MediaEntitydifferential topologyEntityCategoriesDifferential topologyMathematical paradoxes