Figure 3.

Time sequence of photographs showing the motion of a spiral segment. The arrow points to the starting point of the line; it then grows counterclockwise. The segment forms at the edge of the candy floss region, which separates the various curves of the spiral. The Archimedean spiral and the candy floss grow simultaneously; candy floss grows in all directions (note how it eventually even starts leaking from the outside of the spiral itself, starting at t = 12 s), and the spiral evolves independently, adding new sections to its moving tip in a linear fashion.