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
MSG Sphere London have high speed internet access. The sound system will deliver sound through the floorboards. The exterior of the venue will feature a 360 degree IMAX display which will allow those who are outside of the venue to see what is going on inside. The MSG Sphere will be accessible through a variety of mass transit links, including rail and bus. The MSG Sphere London will be accessible via the London Underground's Central line and Jubilee line at the Stratford station. Spectators will also be able to access the MSG Sphere via Docklands Light Railway at Stratford station and Stratford International