#aperiodic patterns

https://sinsism.tumblr.com/

“...prior to Shechtman’s empirical discovery of what was to become known as Quasicrystals, mathematicians were messing around with a concept called aperiodic mosaics (or aperiodic patterns). Early on this concept was applied, literally, to mosaics, but eventually to atoms. The math behind aperiodic mosaics was mainly solved by Roger Penrose, a British mathematician, in the 1970s. Later, a crystallographer, Alan Mackay, applied the concept of aperiodic mosaics to atoms using a theoretical model in which he came up with a 10-fold symmetry in a diffraction study of a large scale crystal model (but not actual crystals). “