Harmonograph Nº 7 — generative.Harmonograph Nº 7 — generative.

A pendulum pen lays gold ink on cream paper. Real damped-oscillator maths, time-lapsed nine minutes into ten seconds, builds a precessing 3:2 rosette whose silky moiré refuses to touch a resist, so a debossed Didone H emerges in the negative space as the pen lifts. Anisotropic metallic sheen, a CSS 3D tilt with depth of field, and a 72 BPM bowed-glass score that decays with the pendulum.