English: The observer is at the center of a very little diamond (21 x 21 x 21 cubic cells). Each line represents a bond between carbon atoms. The rotation is around the second-order symmetry axis of the structure.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.