Shells D Distance 06 of 12
Perspective
sundial
Architectonica perspectiva
With D at 0.3 the coils leave a wide open centre you can look straight down, like a spiral staircase.
- W widening
- 1.72
- D distance
- 0.3
- T travel
- 0.95
- S shape
- flattened
- turns
- 7.9
The settings our model uses to draw it, tuned by eye against photographs.
The real shell · 5–7 cm across
A low cone on a flat base, keeled round the edge.
Its spirals are black, white and brown.
- Lives
- Sandy floors of the Indo-Pacific
- In the exhibition
- Room 2, Four numbers: one of three shells for D, how far from the axis.