0 Creative Commons Attribution 4.0 truetrue A visualization of the Hopffibration by Niles Johnson English Wikimedia username: Nilesj URL: https://commons
DescriptionCircules in the three sphere.png English: Identifying all points on the blue toroid's boundary gives the 3-sphere. It sends the black square
the two completely orthogonal great squares of its skew octagram 2{4} Hopffibration (yellow and orange), the skew regular octagram {8/3} (blue) that is