Christopher Gilmartin

Vol. I · 2026 · New York

Christopher Gilmartin

Spreading the love of learning in the flux of reality.

I write papers on natural curiosities (questions I got curious about, treated with the apparatus they deserve). Every paper is free, as a PDF, right here. The essays around them live on Substack.

Chamaeleon · constellation EST. 1597

Yes, it's a real constellation.

Chamaeleon sits in the deep southern sky, so close to the south celestial pole that it never rises over New York; I named this archive after a piece of sky I cannot see from here.

It entered the charts in 1597, when the cartographer Petrus Plancius drew twelve new southern constellations onto his celestial globe from the observations of the Dutch navigators Pieter Dirkszoon Keyser and Frederick de Houtman. The engraver, Jodocus Hondius, gave the chameleon its tongue out, aimed at Musca, the fly constellation next door. The catch has been frozen mid-air for four centuries.

The paper process

It starts with a question worth taking seriously. I research it, work the math, and write the paper. Some papers become videos on TikTok and YouTube; some videos send me back to the desk to write the paper. Each paper gets a behind-the-paper essay on Substack: the thinking process, the math that did not make the public version, the blind alleys, the references, what got cut.

The papers, their findings, figures, and core math stay free everywhere. The paid tier ($7/mo, on Substack) is the thinking around the result. And if there is a question you want treated properly: request a paper.

Papers
Free PDFs, here
Essays
Substack · $7/mo
Videos
TikTok + YouTube
Requests
From $25