Awesome cube with gyroid surface
A gyroid is an infinitely connected triply periodic minimal surface discovered by Alan Schoen in 1970.
The gyroid is the unique non-trivial embedded member of the associate family of the Schwarz P and D surfaces with angle of association approximately 38.01°. The gyroid is similar to the Lidinoid. The gyroid was discovered in 1970 by Alan Schoen, then a scientist at NASA. He calculated the angle of association in his NASA Technical Report and gave a convincing demonstration but did not provide a proof of embeddedness (although he did provide pictures of intricate plastic models). Schoen notes that the gyroid contains neither straight lines nor planar symmetries. Karcher  gave a different, more contemporary treatment of the surface in 1989 using the conjugate surface construction. In 1996 Große-Brauckmann and Wohlgemuth  proved that it is embedded, and in 1997 Große-Brauckmann provided CMC variants of the gyroid and made further numerical investigations about the volume fractions of the minimal and CMC gyroids.