The shape of the “world” has always aroused our curiosity. If we believe that the universe is finite, common sense leads us to believe that this universe must be enclosed. …
We tend to say that the universe began with the Big Bang and then expanded. It is a metaphor, but everyone understands what it represents or nearly. Because this image …
Is the cube a hexahedron? From a topological point of view, the shape of space depends on its overall surface. Thus, the ad-hoc projection of a cube on a plane …