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.

Hydrogen — Spectra Tee

Featured — Spectra

Hydrogen — Spectra Tee

Four bands of light, set where hydrogen leaves them. The Balmer series is the signature an atom writes as it cools — the same lines astronomers read in distant stars to name what…

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Spectra / Tees

Neon crowds the red. A dense run of lines from yellow through deep red — the glow that fills a tube when current passes…

Spectra / Tees

The same hydrogen lines, twice: at rest, and as they arrive from a receding source — shifted toward the red. The…

Spectra / Tees

Helium, named for the sun before it was found on earth — its signature first read in the solar spectrum during an…

Spectra / Tees

Mercury's signature: violet, green and a close yellow pair — the lines that calibrate spectrometers and lit the older…

Orbital / Tees

The electron has no orbit — only a probability. This is the hydrogen wavefunction |ψ|² for n=6, ℓ=4: a standing cloud…

Fringe / Tees

Send photons through two slits one at a time and the pattern still builds — each interferes with itself. The…

Vacuum / Tees

Before the symmetry breaks, the field rests at the centre; after, it rolls into the circular trough — and mass appears…

Spectra / Tees

Lithium burns crimson. Two lines carry nearly all of it: 610.4 and 670.8 nanometres, the flame-test signature that…

Spectra / Tees

Copper turns flame blue-green. The lines cluster between 510 and 578 nanometres a narrow, cool band that separates it…

Spectra / Tees

One krypton line once defined the metre. From 1960 to 1983, a length of 1,650,763.73 wavelengths of its orange-red…

Spectra / Tees

Xenon is the flash you don't see coming. Photographic strobes, early car headlamps and high-intensity lamps all run on…

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