3-sphere two 3-balls. This construction is analogous to a construction of a 2-sphere, performed by gluing the boundaries of a pair of disks. A disk is a 2-ball, and the boundary of a disk is a circle (a 1-sphere). Let a pair of disks be of the same diameter. Superpose them and glue corresponding points on their boundaries. Again one may think of the third dimension as temperature. Likewise, we may inflate the 2-sphere, moving the pair of disks to become the northern and southern hemispheres. After removing a single point from the 2-sphere, what remains is homeomorphic to the Euclidean
Sphere (novel) film by Andrei Tarkovsky". Reviews were mostly positive for the novel. "The New York Times" Robin McKinley said, "Part of the fun of "Sphere" is that it keeps you going even when you're pretty sure of what will happen next." Sphere (novel) Sphere is a novel written by author Michael Crichton that was published in 1987. The novel was adapted into the film "Sphere" in 1998. The story follows Norman Johnson, a psychologist engaged by the United States Navy, who joins a team of scientists assembled to examine a spacecraft of unknown origin discovered on the bottom of the Pacific