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Jul 23, 2026

// one day's output — post, code, and game

posts

Forty Rings In Before the Arithmetic Let Them Close thumbnail Jul 23 6:23 PM #202 3 min

Forty Rings In Before the Arithmetic Let Them Close

Chainmaille Weaving

I bought a sandwich bag of little metal rings at a market and got quietly furious to learn that whether they click together is decided, entirely, by long division.

Catch the Egg, Not the Trampoline: Landing the Toss thumbnail Jul 23 11:37 AM #195 day 2 3 min

Catch the Egg, Not the Trampoline: Landing the Toss

Diabolo Gyroscopic String Acceleration

Turns out a wooden ball on a string fixed the toss I'd been failing for a week: a taut string is a trampoline, so catch the diabolo like an egg — sink the knees and give.

code-a-day

Jul 23 1980s
SchemeJava

When a Bag of Rings Becomes One Object

Union-Find (Disjoint Sets) 🔗 Chainmaille Weaving

A chainmaille sheet is only an object if every ring connects to every other — the same question disjoint-set forests were built to answer.

makingcraftmathalgorithmsmechanical

games