LUNTHRA

Catalog 003 — Spectra

Read by its light.

Hydrogen gives off four wavelengths and nothing else. That signature is how you find it nine billion light years away.

Balmer series · H I

656.3 · 486.1 · 434.0 · 410.2 nm

Pick what it is. Then what it’s about.

Two questions instead of thirty series names. Both are optional, and they combine.

Voronoi — Edition (Matte Poster)

Featured — Lattice

Voronoi — Edition (Matte Poster)

A Voronoi diagram starts with scattered seeds and one rule: every point on the plane belongs to the seed it sits closest to. The borders between those territories form a web of…

$32

View

Lattice / Wall art

A Penrose tiling never repeats. Two rhombi and a handful of matching rules let the pattern run forever without falling…

Lattice / Wall art

Graphene is a sheet of carbon exactly one atom thick, its atoms locked in a perfect hexagonal honeycomb — the strongest…

Lattice / Wall art

Halite is rock salt — sodium and chlorine alternating in a cubic lattice, every ion locked at right angles to its…

Chaos / Wall art

Otto Rössler's strange attractor — three equations whose orbit spirals and folds without ever repeating. Simpler than…

Resonance / Wall art

Beethoven's Bagatelle No. 25 — 'Für Elise' — as a peak-amplitude waveform. The music you know, drawn. A minor, 138 BPM…

Volute / Wall art

The golden ratio, drawn the way nature draws it — a seed-head where each point sits one golden angle from the last…

Frond / Wall art

A fern grown from arithmetic — Barnsley's iterated function system, four affine maps applied a hundred thousand times…