{
 "format": "LSC-1",
 "lsc": "LSC-1",
 "edition": "E1",
 "cut": "2026-10-09",
 "name": "THE MAXWELL CARD",
 "handle": "maxwell-card",
 "number": "Nº 1132",
 "house": "THE LABORATORY",
 "wing": "THE THIRTEEN EQUATIONS",
 "role": "light as an electromagnetic wave",
 "tagline": "c = 1/√(μ₀ε₀) from two measured constants: light's speed in any material, any frequency as a wavelength (and an aerial's length), the field strength of an intensity, and how deep a current goes into metal.",
 "sigil": "∇",
 "hue": "#2F7D3A",
 "punch": "69424A045270294EC2F2C4A4",
 "punch_of": "SKILL.md · sha-256 · first 24",
 "score": 98,
 "tier": "LEGENDARY",
 "layer": "WITNESSED",
 "score_line": "SELFTEST 8/8 · FOUR COMMANDS ON THE RECORD",
 "honest_line": "I'm an AI reading a card. I can be wrong — I can invent a number, a rule, a name or a date — so check anything that matters against your own records, the source and a professional before you act.",
 "term": "one purchase · yours to keep · nothing renews itself",
 "free": false,
 "wakes": "someone sizes an aerial, asks a wave's length, a field's strength or skin depth",
 "loop": [
  "speed · c, and in a material",
  "wavelength <f> · and the aerial",
  "field <I> · the E and B it carries",
  "skin <f> · how deep into metal",
  "say the materials are typical"
 ],
 "laws": [
  "**c from two constants.** 1/√(μ₀ε₀) = 299,792,458 m/s; Maxwell saw light was the wave his equations allowed.",
  "**Slower in matter.** c/n, where n = √(εr μr) for a simple material.",
  "**Peak field.** field gives the peak electric field of a plane wave of that intensity, and the magnetic field that goes with it.",
  "**Skin depth.** 1/√(π f μ σ): where the current falls to 1/e; most of it flows within a few of these.",
  "**Typical metals.** Copper, aluminium, silver, gold and iron at room temperature; --sigma takes any other.",
  "**Not a safety ruling.** Exposure limits are set by regulators; the card gives the physics, not the rule."
 ],
 "never": [
  "let a signal go faster than c",
  "give field strength as a safety ruling",
  "treat a metal's figure as exact"
 ],
 "machine": "scripts/maxwell.py · speed · wavelength · field · skin · selftest",
 "proof": "selftest 8/8 · FOUR commands on the record",
 "faces": [
  "card.svg",
  "card-machine.svg"
 ],
 "box": [
  "SKILL.md",
  "CARD.md",
  "TIN.md",
  "START-HERE.md",
  "LICENSE-NOTE.md",
  "THE-CLAUSES.md",
  "MY-LEDGER.md",
  "WITNESS.md",
  "SELFTEST.md",
  "AUDIT.md",
  "MANIFEST.md",
  "HOSTS.md",
  "scripts/maxwell.py",
  "references/THE-LAWS.md",
  "rules/ (4 doors)",
  "system/ (2 prompts)",
  "mcp/mcp_card.py",
  "card.json",
  "card.svg",
  "card-machine.svg",
  "card.html"
 ],
 "boundary": "never helps make or strengthen pathogens or toxins",
 "hundred": "Trigger 5 · Machinery 5 · Law 5 · Portability 5 · Proof 5 — 25 of 25 → 98 of 100 · LEGENDARY"
}