Hexagonal

Benzene molecules are hexagonal in shape.

Why do bees make the cells of their honeycomb in a hexagonal shape?

The sheet was punctured by a grid of hexagonal holes.

Nuts in engineering are generally hexagonal.

If we just plopped down a dot for every observation we’d end up with an undifferentiated black blob, so the weathergami technique visualizes frequency of temperature pairs: we divide the chart area into a fine hexagonal grid, and then color each hexagon according to how many daily observations fall within it.