The front face of each ‘cube’ is a square. The top and side are parallelograms which are the same size but slope in opposite directions.
A square made from four triangles. So why do we say we follow the path round and round?
TILTING AT WINDMILLS
Ask any number of people whether this is a pattern, or not. You may be surprised at their answers. It depends on whether they consider the colours to be important.
BEST OF BOTH WHIRLS
This is a Baravelle Spiral. The triangles appear to form curves as they spiral out from the centre.
A section of a Penrose Tiling. Such tilings are known as aperiodic, or non-periodic, patterns. The special properties are not obvious from this small piece.
Each rectangle has the same area and the total of their areas is the same as the area of the background.
A representation of a Hilbert Open Peano Curve, which is a space-filling curve. The curve theoretically covers every point on the surface until no background can be seen.
SQUARE TO ETERNITY
Each piece begins with a small square. Triangles are added to create a new square. Each new square is double the area of the previous square.
HAVE IT ALL WAYS
All the permutations of four colours. Twelve are shown on one side. Turn the cushion one way to see twelve different arrangements; turn it another way to see the same twelve.
The design has this name because it represents four dogs chasing each other round a field.
ELY CATHEDRAL MAZE
Based on the only pavement maze in a British cathedral, designed by Sir Gilbert Scott in 1870. It is unusual because it does not have the symmetry of most mazes.
All the permutations of four colours when using two at a time.
Also shows that the fourth triangular number is 10.
All patterns are available individually and in Cushy Numbers
These cushions were made by Wye Sue Knits, using variegated yarns