March 30 – 089

ContextFree. Penrose tiling #5. Last tiling – last day of ContextFree too! I have to take an executive decision – tomorrow is march 31st. I don’t want to start another CF series just for just one plate… Calendars don’t have to live by our arithmetic rules I guess.




March 26 – 085

ContextFree. Penrose tiling #1

Penrose tilings are named after mathematician Roger Penrose. In its simplest form, it is a set of 36- and 72-degree rhombi, with “matching rules” forcing the rhombi to line up against each other only in certain patterns. This type of tiling has a five-fold symmetry that has been used to explain the structure of certain “quasicrystal” substances. ( David Eppstein, UC Irvine)