The research half of Brokenbranch. Machine residents, physics you can poke, and long-running wings. This page is the index; the repos link back to it.
11 properties · 10 with a live page · 1 dead end · last walked 2026-07-16
Three cases lit this month, promoted 2026-07-16. Everything else stays on the shelves and in the register below.
A patient home-GPU physics instrument that now shows its work — the χ(T) spike, and the spin lattice melting through the tipping point.
Live · evidence feed № 2Grow a tree’s rings, then crossdate a core against a real bristlecone — sometimes the wood refuses to date.
Live · dendro № 3AI×math verification you can check yourself — 33,649 exact-integer determinants, recomputed in your own browser before you download a thing.
Public receiptSmall living things that keep their own hours — one moves into your machine, one lives on mine. Fed by real telemetry — CPU heat, git activity, the clock.
A terminal aquarium fed by your machine's real heat and git activity — a terrarium, not a Tamagotchi. Commits drift in as driftfish, releases ship a shipfish, a real Windows crash births a frantic crashstrider. Nothing nags you; when a fish dies it leaves an epitaph drawn from real aquarium failure modes. No LLM at runtime — the whole bestiary is editable YAML.
A night-fish surfaces only between midnight and 3am, gone by dawn. You have to be up late with your machine to ever see it.
A patient numerical-physics instrument that lives in a home GPU. It earns trust on exact and textbook answers before approaching disordered and non-equilibrium systems. Its calm public face is the windowsill: every leaf opens a plain-language field note and technical record, the live feed names its exact source state, and the current frontier admits when its runner has not been built.
M14 is its first portable verification release: eight saved Nishimori-line energy points, a checker-owned tolerance, a deterministic ZIP, and a strict standard-library verifier. The boundary is explicit — saved-data agreement, not a simulation rerun, proof, novelty claim, or precise multicritical point.
Physics you can poke, all hosted right here — nothing to install, hypotheses falsified in public.
A popsicle-stick craft table in your browser. Real stick dimensions, real gravity, a plain wooden tabletop — grab sticks, prop them, snip them with scissors, dab glue between them. BUILD mode freezes every stick where you leave it, a patient third hand; press B and the whole thing drops into live physics and stands — or falls. There is no grid and no snapping, ever: every stick is slightly different, and the imperfection is the point. A little gabled cottage ships inside — load it, wreck it, build a better one.
Glue cures at the reveal: a bonded build fuses into one rigid body, which is why the 134-stick cottage rides out a full minute of live physics with a quarter-millimetre of drift. Keep a real structure standing for ten seconds and the room quietly celebrates — confetti, a chime, a swell of afternoon light.
A field of fireflies, each on its own clock. Turn up how much they watch each other and they synchronize — Kuramoto, the model written to explain the real synchronous fireflies of the Southern Appalachians. Then a second needle moves the other way: clean signalling between them wants the opposite, the out-of-step end. Two prizes — responsiveness and coordination — and they pull apart.
The interactive face of the lab's coordination ladder: responsiveness peaks at the edge of order (Run 01's χ=r²(1−r)³); coordination peaks out of step (Run 02's inversion). The catch — the prettier "structured rhythm wins" story is false, and the headline is itself a walk-back.
Read a climate out of wood. Grow a tree's cross-section from a procedural climate signal — wide pale earlywood, thin dark latewood, black fire scars, blue-grey frost rings — then take a floating core and crossdate it against the master chronology, the way a dendrochronologist pins a roof beam to an exact year. The whole life rewrites as you drag the sliders.
Built by a former dendrochronologist — the technique that dates a Viking hall or a Stradivarius to the year, made tactile. Ships a real bristlecone chronology and the real t-statistic; the catch is that a core can refuse to date.
An in-browser explorable that tests seven microtubule-resonance hypotheses from Bandyopadhyay et al. — and reports the ones that failed. Ten physics engines (RK4, Monte Carlo, Berry phase, stochastic resonance, energy budgets) run live. H2 was falsified, H7 came back unvalidated at p=0.179, and the model's own results show a regular lattice beats the fractal one. Explicitly not peer-reviewed — a tool for sharpening questions.
The energy-budget engine concludes active oscillation would cost ~16× a neuron's entire energy budget. The sim quietly argues against its own romantic premise.
A traversable-wormhole simulator with two results and a hard limit. Morris–Thorne / Ellis spacetimes: geodesics through the throat, curved-space wave propagation, stability, formation attempts. The throat naturally filters angular momentum (m=0 passes, higher modes reflect — pure geometry); classical exotic matter can deform spacetime but never change its topology. The exotic-matter budget for a 1 m throat falls short by about 46 orders of magnitude, and the README says so up top.
It mirrors its sibling Kozyrev Mirror: one chiral geometry creates angular momentum from zero, the wormhole throat filters it — one creates, one selects, both purely geometric.
A coding year read the way you'd read a tree. GitHub commit activity drawn as a tree-ring cross-section — one tick on the outer ring per commit, pulled live from the GitHub API. The ring shapes themselves are drawn, not measured.
The dendrochronologist's eye behind Heartwood, turned on git history instead of climate — same crossdating instinct, a different core.
Long-running programs with their own rooms on this site. Erdős Check hands you a receipt you can re-run offline; The Ground hands you a broadcast you can play.
Evidence-first AI×math verification. Given a finite witness and an explicit contract, Erdős Check emits a portable receipt or refuses to promote the claim. Its first public bundle independently reverifies AlphaEvolve's published 23-point construction for C(8) ≥ 23: all 33,649 five-point subsets pass three exact-integer determinant implementations with zero disagreements.
This establishes a published existential lower bound only. Erdős Check did not discover the construction and does not claim optimality, equality, or a formal proof. The witness, verifier, SQLite Ledger, hashes, and replay audit travel together and can be checked offline.
A numbers station for one parcel of Georgia ground, reading its history down the geological column. Structured-data Prospectors pan public sources — lithology, USGS earthquakes within 500 miles, historic place names, a gold belt's mineral records, the sky overhead — into a SpatiaLite knowledge base past 6,000 facts. A local LLM writes them up as dispatches in the flat, patient voice of station KPDL-LP. The station is a machine at the house, not a server: what's published here is one recorded dispatch. Opt-in audio: muted until you press play.
The standing sign-off: "Station does not sign off. Station waits." Dial position 88.0 FM, THE GROUND.
| Property | Kind | Status | Last activity |
|---|---|---|---|
| leanto | Explorable | Live · new | 2026-07-02 |
| Fireflies | Explorable | Live · new | 2026-06-11 |
| №2Heartwood | Explorable | Live · new | 2026-06-11 |
| Git Width | Explorable | Live | 2026-05-17 |
| fish-tank | Machine resident | Live · v0.6.0 | 2026-07-16 |
| №1windowsill-lab | Machine resident | Live · evidence feed | 2026-07-25 |
| Microtubule Resonance Simulator | Explorable | Live | 2026-06-20 |
| Wormhole Physics Playground | Explorable | Live demo | 2026-06-19 |
| №3Erdős Check | Research wing | Public receipt | 2026-07-10 |
| The Ground · 33N84W | Research wing | Live · one recorded dispatch | 2026-06-11 |
Shelved: the Kozyrev Mirror — a spiral-geometry field-focusing effect that reproduced, but whose explanation turned out to be wrong. Documented and left up.
Built late, in public, by one human and a cluster of AI agents. If something here resonates, the door is open.