Read by its light.

Spectra / Wall art

One atom, three series. Lyman falls in the ultraviolet, Balmer in the visible, Paschen in the infrared — each a ladder…

Spectra

Sodium speaks in yellow. A single bright doublet near 589 nanometres — the colour of a flame test and the old sodium…

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

Hydrogen's four lines, down the leg. The Balmer series — 410, 434, 486 and 656 nanometres — set on black, the signature…

Spectra / Tees

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

Spectra / Wall art

O B A F G K M — the order astronomers sort the stars, hottest to coolest, blue to red. Seven types, seven spectra, each…

Spectra / Wall art

Four temperatures, four curves. As a body heats, its glow brightens and its peak slides toward the blue — Planck's law…

Spectra / Hoodies

Hydrogen's Balmer series — four lines at their true wavelengths, the signature an atom writes as it cools. Printed…

Spectra / Hoodies

Neon's emission — the crowd of red and orange lines behind every glowing sign. Printed front-only on a heavyweight…

Singularity

Light cannot escape — but it can be bent into a halo. The photon ring and lensed accretion disk of a black hole, the…

Singularity

Spacetime folded until infinity fits on a page. The Penrose conformal diagram of an eternal Schwarzschild black hole —…