The series was inspired by antiquarian books on electromagnetism that Ruff had purchased, among others by British physicist James Clerk Maxwell (1831–1879), which was illustrated by copper-point engravings of magnetic fields. These fine patterns of lines that are subject to no aesthetic criteria constitute highly interesting linear phenomena and reminded Ruff of abstract drawings and minimal art. Wondering how such drawings could look in three-dimensional space, he started toying with a 3D computer program for the visualization of complex formula from linear algebra in 2D and 3D space. By means of the mathematic formulae for various cycloids (which are viewed in mathematics as “the most aesthetic curves”), Ruff then created virtual complex 3D line structures. He then took various close-up shots of these structures, which represent intrinsically logical curves, such that you can no longer discern their origin in mathematics. Instead, they bring to mind planetary orbits, the lines of magnetic fields, curved strips or loops, line drawings in abstract art, or musical vibrations.