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.

Stdout / Tees

$35

Cache invalidation, naming things. The list runs one item past its own count.

Stdout / Tees

$35

A proverb, inverted and set as one. Most people have proved it at least once.

Stdout / Tees

$35

A law about magic, rewritten for software. The distinction was always a matter of documentation.

Stdout / Tees

$35

A line number, a comment, and a date. Still in production.