Tunde Adeyemi

Limiting magnitude from first principles

Where the fifth root of 100 comes from, why 5 log D is just Pogson again, and why every aperture table you have seen is a point source table.

What Jot looks like from the inside

Jot hands a model the same Markdown you wrote instead of a scraped page. What that fixes, and the two places where the twin is thinner than the page.

Benford's law, and when it lies to you

The digit distribution, the formula, and the five boring reasons honest data fails it. Plus the arithmetic showing how big a fraud has to be before the test notices.

I lost a won endgame and I want you to see it

A Lucena position I knew cold, and the one move on move 61 where I stopped asking which piece was supposed to move. Full annotation, clock times included.

Null Island has a weather station

0,0 is three kilometres of open water in the Gulf of Guinea and the busiest coordinate on Earth. Why zero and nothing keep collapsing into each other.

218 hours on one galaxy

Three winters on NGC 891 from a Bortle 4 backyard. Full log, the square root maths on what each block of hours bought, and the 40 hours I deleted.

The pawn structure that taught me patience

The Carlsbad structure and the minority attack, written for the student who wants a sacrifice by move fifteen. Three plans each side, and two games worth an hour.