Symmetry


Quasicrystals

What happens if we break some of the rules of crystallography? A traditional crystal is a repeating pattern of units in three dimensions.  If you take shapes like triangles, squares and hexagons, you can tessellate these into two dimensions without any gaps.  What happens if you take a pentagon?  It […]


What IS a Crystal?

Crystals are all around us in everyday life and grow both in nature and through industrial processing.  They can be objects of desire such as diamond or common place items such as salt and sugar.  They are often beautiful to look at, with very regular shapes and can be very […]