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.

Leopard Tee - Turing Reaction-Diffusion Art | Men's

Featured — Morphogen

Leopard Tee - Turing Reaction-Diffusion Art | Men's

Turing's 1952 theory of why animals have spots, run forward as a Gray-Scott reaction-diffusion field at F 0.026 / k 0.061 - the regime that resolves into discrete rosettes. An…

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Morphogen / Tees

Shift the Gray-Scott kill rate and discrete spots stretch into bands. Held at F 0.026 / k 0.055, Turing's…

Morphogen / Tees

The looping maze on a pufferfish is a textbook Turing pattern. Grown here from the Gray-Scott model at F 0.030 / k…

Morphogen / Tees

Fingerprint ridges form in the womb through the reaction-diffusion process Turing described. The Gray-Scott model at F…

Morphogen / Tees

The folded surface of brain coral - and the cerebral cortex - is reaction-diffusion shaping a living surface. The…

Murmur / Tees

A murmuration has no leader. Five thousand agents follow three local rules - separation, alignment, cohesion - and the…

Murmur / Tees

Threatened, a fish school knots into a rotating bait ball that flinches from any predator - no fish in charge. The…

Murmur / Tees

A locust swarm moves as a front: thousands of individuals shuffling, the mass advecting as one. Strong alignment in the…

Murmur / Tees

Migrating geese find the easy air behind a neighbor's wingtip, and the V-skein emerges from those local choices…

Clade / Tees

The primate tree as molecular phylogenetics has resolved it - lemurs and lorises on one branch, tarsiers with the…

Clade / Tees

The mammal tree from monotremes through marsupials to the placental orders, drawn as a radial cladogram. A real…

Clade / Tees

The bird tree: the ancient flightless palaeognaths, then the great rapid radiation of modern birds. A radial cladogram…

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