Here, the visible carbon structure provides an eye - catching feature, as does a dynamic recess in the centre of the roof. (motor-prime.com)
To create a new carbon structure with this ability, an international team tried mimicking opal, which consists of tightly packed silica spheres. (sciencemag.org)
Trefoil - shaped carbon structures, on the other hand, can be arranged so as not to overlap, chemist Omar Yaghi of the University of Michigan, Ann Arbor, and colleagues report in the 5 February issue of Nature. (sciencemag.org)