Figure 15
The pattern of weaving in hcb-c7. Each vertex corresponds to a similarly coloured layer in Fig. 14. The 14 triangles with distinct vertex colourings correspond to the 14 Borromean triplets in hcb-c7. On the right, the six colours surrounding black show the six Borromean triplets involving the black layer. The two triplets of second-neighbour vertices correspond to the Borromean triplets (green–yellow–blue and red–magenta–orange) `above' and `below' a black hcb net. |