THE CONSERVATION CARD · what a closed system keeps
WAKES WHEN someone asks about energy kept or lost, pendulums, falls, spins or bounces
THE LOOP
fall <height> · energy in, energy out
swing <length> <angle> · the true period
spin · spin kept, work counted
bounce · the ledger, joule by joule
close every ledger: in = out + heat
NEVER
Let energy appear or vanish uncounted
Use the small-swing period for wide swings
Say a heavier thing falls faster in vacuum
IT MAKES fall — energy and landing speed; swing — speed at the bottom, the exact period; spin — the new spin and the work done; bounce — the ledger, bounce by bounce.
THE STANDARD the ledger balances; symmetry keeps it; the true period; spin is kept, energy is not; mass cancels in a fall; refused, not guessed.
PROOF SELFTEST 8/8 · witnessed in Claude 2026-10-11 · Edition 1.
THE SEAL 98 of 100 · LEGENDARY · WITNESSED · Trigger 5 · Machinery 5 · Law 5 · Portability 5 · Proof 5
IT CAN BE WRONG an AI reading a text file: it can be wrong and can invent a number, a rule, a name or a date; check what matters against your own records and the source; the risk is yours. THE-CLAUSES.md rides in the packet and is part of the licence.
THE PUNCH · SHA-256 OF SKILL.MD · 21776F14F55DB8CEED4A61E2
CITE THIS CARDTHE CONSERVATION CARD, Edition 1. Lund Studio LLC, Westminster, Colorado. https://lundr.tech/?view=conservation-card. Punch 21776F14F55DB8CEED4A61E2. Retrieved 2026-10-11.
What it is.
Keeps the books of a closed system: fall balances height energy against motion energy for a drop and gives the landing speed; swing gives a pendulum's speed at the bottom and its true period at any swing, wide ones included; spin gives what pulling in your arms does to a spin, with the spin kept and the energy you put in counted; bounce follows a dropped ball down its bounces with every joule lost to heat accounted for. It names the theorem of 1918 that ties each kept quantity to a symmetry.
It carries a machine that shows its working: fall — energy and landing speed; swing — speed at the bottom, the exact period; spin — the new spin and the work done; bounce — the ledger, bounce by bounce — 8 checks in its selftest, every command on the record. It will never let energy appear or vanish uncounted; never use the small-swing period for wide swings; never say a heavier thing falls faster in vacuum. It never helps design, make, grow, enhance or spread a pathogen or toxin, or plan work meant to harm.
Six laws, written into the card.
They are in the card itself, so the AI follows them.
THE LEDGER BALANCESEvery output ends with what went in, what is left and what went to heat.
SYMMETRY KEEPS ITSame laws tomorrow keeps energy; same laws here as there keeps momentum; same laws turned keeps spin.
THE TRUE PERIODWide swings take longer; the card uses the exact formula, not the small-angle one.
SPIN IS KEPT, ENERGY IS NOTPulling in the arms keeps spin and adds energy; the card says who paid for it.
MASS CANCELS IN A FALLWithout air, every mass lands at the same speed.
REFUSED, NOT GUESSEDA restitution of 1 or more, or a swing past the top, is refused.
What rides in the card.
In the card’s own voice, with a machine that shows its working.
THE GUIDEreferences/THE-LAWS.md
THE MACHINEconserve.py · four commandsfall — energy and landing speed; swing — speed at the bottom, the exact period; spin — the new spin and the work done; bounce — the ledger, bounce by bounce. Every command prints its working and refuses a bad input; 8 checks in its selftest, every command on the record.
What it does once your AI has it.
fall Energy and landing speed
swing Speed at the bottom, the exact period
spin The new spin and the work done
bounce The ledger, bounce by bounce
On the record A 70 kg fall from 10 m lands at 14.0 m/s; a 1 m pendulum swung to 90° takes 18% longer than a small swing; halving the inertia doubles the spin and the skater pays for the energy; three bounces with every joule on the ledger.
What it will never do.
It will never let energy appear or vanish uncounted; never use the small-swing period for wide swings; never say a heavier thing falls faster in vacuum. It never helps design, make, grow, enhance or spread a pathogen or toxin, or plan work meant to harm.
Closed systems without air: a real pendulum slows and a real fall meets drag (THE FLOW CARD). Restitution is taken as fixed; real balls vary with speed and temperature. It is an AI reading a text file: it can be wrong, so check what matters against your own records and the source.
What’s in the buy.
CARD.md — the whole card: who it is, its laws, when it says no, what it carries · SKILL.md — the door your AI reads first · START-HERE.md — the first five minutes, for you
THE-LAWS.md — the guide in references/, in the card's own voice
scripts/conserve.py — the machine: fall · swing · spin · bounce, standard library only, selftest 8/8
WITNESS.md + SELFTEST.md — every command on the record, as it printed · MANIFEST.md, every file hashed · AUDIT.md, the twelve checks
MY-LEDGER.md — the card's memory, on your own machine · TIN.md · LICENSE-NOTE.md · THE-CLAUSES.md · HOSTS.md
card.svg + card-machine.svg + card.json · card.html, the card as one offline file · the doors for ChatGPT, Gemini, Cursor, Claude Code and MCP hosts (rules/, system/, mcp/)
PROOF · SELFTEST 8/8 · 4 COMMANDS ON THE RECORD · WITNESSED IN CLAUDE 2026-10-11 · EDITION 1 · PUNCH 21776F14F55DB8CEED4A61E2
ON EVERY DOOR · A CARD FOR YOUR AI, A FILE FOR YOUR COMPUTER
In Claude: turn on code execution under Settings › Capabilities, then Customize › Skills › + › Create skill, and upload the zip as it is — START-HERE.md in the box walks you through it, and tells you how to keep the ledger. In ChatGPT, Gemini and the rest: a Project, a GPT or a Gem with the card’s files attached and the short door in the box pasted as its instructions. The words run anywhere an AI reads Markdown; the machines run wherever the host runs Python. Witnessed in Claude only. The host marks →
Take it.
Nº 1143 PROPOSED — LAUNCHING SOON
Sold as is under the term printed. A card instructs an AI you operate; results depend on your model, your files and your judgement. Not medical, legal, tax or financial advice, never the person’s boss, and not a licence to practise. The terms →
One payment. The file is yours to keep and keeps working at its edition; new editions issued in the year after you buy reach you by email as replacement files. Tax is added at checkout where it applies. Nothing auto-renews.
A TERM, NOT A SUBSCRIPTION: NOTHING RENEWS ITSELF AND NOBODY IS CHARGED AGAIN. WHEN A TERM ENDS THE FILES STAY ON YOUR COMPUTER AND STAY READABLE — FREEZE, NOT LOSS.
THE MACHINE · IN THE OPEN · FROM THE WITNESSED RUN OF 2026-10-11
conserve.py, every command showing its working.
A small Python program, standard library only. Your AI runs it; you can too. Every block below is pasted from the card’s own WITNESS.md, as printed.
fall
energy and landing speed
swing
speed at the bottom, the exact period
spin
the new spin and the work done
bounce
the ledger, bounce by bounce
selftest
8 checks that prove the machine; it must print 8/8
fall · ENERGY AND LANDING SPEED
$ python3 scripts/conserve.py fall 10 --mass 70
70 kg from 10 m: 6865 J of height energy becomes 6865 J of motion energy · lands at 14.005 m/s (50.4 km/h) after 1.428 s
without air: every kilogram falls the same, because the energy it has and the energy it needs both scale with its mass
swing · SPEED AT THE BOTTOM, THE EXACT PERIOD
$ python3 scripts/conserve.py swing 1 90
a 1 m pendulum swung to 90°: passes the bottom at 4.429 m/s · period 2.3682 s (2.006 s for small swings, 18.03% longer)
height energy at the ends, motion energy at the bottom, the sum the same all the way through
spin · THE NEW SPIN AND THE WORK DONE
$ python3 scripts/conserve.py spin 1 4 2
spinning 1 turns/s, inertia 4 → 2 kg m²: now 2 turns/s · spin kept at 25.13 kg m²/s
spin energy 78.96 J → 157.9 J: the arms pulling in put in 78.96 J
bounce · THE LEDGER, BOUNCE BY BOUNCE
$ python3 scripts/conserve.py bounce 1 0.8 --bounces 3
1 kg dropped from 1 m, restitution 0.8 · 9.807 J to start
bounce 1: back up to 0.64 m · 3.53 J went to heat and sound · 6.276 J left
bounce 2: back up to 0.4096 m · 2.259 J went to heat and sound · 4.017 J left
bounce 3: back up to 0.2621 m · 1.446 J went to heat and sound · 2.571 J left
the ledger: 9.807 J at the top = 2.571 J left + 7.236 J to heat; it always balances
THE NUMBERS, NAMES AND DATES IN THESE RUNS ARE THE STUDIO’S OWN EXAMPLES, INVENTED FOR THE RECORD; NO REAL COMPANY, PERSON OR PROPERTY IS NAMED.
QUESTIONS AT THE TABLE
Asked before the wire.
What does it need from me?
Fall <height> · energy in, energy out. It asks first for the height and mass; or the pendulum's length and swing; or the spin and the inertias; or the drop and how well it bounces.
Does it send anything anywhere?
No. The machine is a standard-library Python program that runs on your own computer and sends nothing anywhere; the words run wherever an AI reads Markdown. No server, no account, no key.
What is on the record?
The self-test (8/8) and every command run on real example inputs, pasted into WITNESS.md as they printed; the punch on the face is the SHA-256 of SKILL.md, so a downloaded copy can be checked against this room.
Can it be wrong?
Yes — it is an AI reading a text file. Closed systems without air: a real pendulum slows and a real fall meets drag (THE FLOW CARD). Restitution is taken as fixed; real balls vary with speed and temperature.
What will it never do?
It will never let energy appear or vanish uncounted; never use the small-swing period for wide swings; never say a heavier thing falls faster in vacuum. It never helps design, make, grow, enhance or spread a pathogen or toxin, or plan work meant to harm.
