{"query": "The radio spectrum — one law from the cavity to the eye", "count": 20, "results": [{"id": "card_n_51ecbfa0bb5a", "title": "The radio spectrum — one law from the cavity to the eye", "shelf": "science", "surface": "secular", "snippet": "Walk the dial upward and nothing changes but the number: λ·f = c the whole\nway. Twelve rungs sealed in ONE receipt: https://narrowhighway.com/s/d6211f4efb2518c6de145decf57f27b131a01c24ce7841853f395b7b", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_n_cdb747a427d2", "title": "Electronics — the resonant chain, from Ohm's law to the radio wave", "shelf": "science", "surface": "secular", "snippet": "One sealed chain runs the whole bench: Ohm's law (V = I·R), the capacitor's\nexponential clock (one time constant → 63.2% charged), the diode's exponential gate (current\ndoubles every ln2·nVT ≈ 17.9 mV", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_c_f746297fd660", "title": "Schumann resonance — the Earth-ionosphere ca ↔ Oscillator — LC resonance, the bench's own S", "shelf": "connections", "surface": null, "snippet": "the cavity is an oscillator, lightning the impulse source, a Schumann receiver just a coil and an amplifier  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_c_13dfc69fefbf", "title": "Infrared — everything warm is broadcasting ↔ The radio spectrum — one law from the cavity", "shelf": "connections", "surface": null, "snippet": "Above visible red the spectrum becomes heat's own voice: every body radiates with a peak set by Wien's law, λ_peak·T = 2898 µm·K.  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_n_91f3b5881075", "title": "Schumann resonance — the Earth-ionosphere cavity, sealed honestly at 7.83 Hz", "shelf": "science", "surface": "secular", "snippet": "The planet is a resonant cavity. Between the ground and the ionosphere, lightning\n(~50 strikes/second worldwide) continuously rings a spherical electromagnetic waveguide; the\nmeasured resonances sit a", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_c_305b16a890ad", "title": "Pheromones — the molecule is the message ↔ The radio spectrum — one law from the cavity", "shelf": "connections", "surface": null, "snippet": "Radio waves (EM), DNA (genetic), morphemes (linguistic), neurotransmitters (neural), and the sealed receipt of this very engine (cryptographic) are all the same abstraction — Shannon's channel.  — a c", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_c_7ae9c7200c48", "title": "The two clocks — quartz, cesium, and the sec ↔ The radio spectrum — one law from the cavity", "shelf": "connections", "surface": null, "snippet": "that cesium frequency, 9.19 GHz, lands squarely in the MICROWAVE band  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_c_499ed17c0be2", "title": "GPS (UHF) — a constellation of clocks at 19  ↔ The radio spectrum — one law from the cavity", "shelf": "connections", "surface": null, "snippet": "sealed, with the 19 cm wavelength: https://narrowhighway.com/s/d6211f4efb2518c6de145decf57f27b131a01c24ce7841853f395b7bc986c323  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_c_feb938352b59", "title": "FM broadcast (VHF) — three-meter waves, line ↔ The radio spectrum — one law from the cavity", "shelf": "connections", "surface": null, "snippet": "88–108 MHz; sealed: the 100 MHz wave is 2.99 m, and its quarter-wave whip is 74 cm — the length of a car antenna, derived: https://narrowhighway.com/s/d6211f4efb2518c6de145decf57f27b131a01c24ce7841853", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_n_73d989606f90", "title": "Radio-wave production — the chain leaves the bench", "shelf": "science", "surface": "secular", "snippet": "Drive an antenna with the oscillator and the wave departs at c: λ = c/f — sealed:\nthe 1.591 MHz LC wave is ≈ 188 m long (floor(c·2π·10⁻⁷) = 188): https://narrowhighway.com/s/1ee0d3ed486453eee0967146a5", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_src_book_49172", "title": "Cavity-Nesting Birds of North American Forests Agriculture Handbook 511 — Virgil E. Scott", "shelf": "gutenberg", "surface": "secular", "snippet": "Cavity-Nesting Birds of North American Forests Agriculture Handbook 511, by Virgil E. Scott. Subjects: Birds -- Nests; Birds -- North America; Forest birds -- North America; Cavity-nesting birds -- No", "authority_tier": "reference", "source": "Project Gutenberg (public domain)", "readable": true, "generated": false}, {"id": "card_src_pron_cavity", "title": "cavity", "shelf": "pronunciation", "surface": "secular", "snippet": "cavity: pronounced (ARPABET) K AE1 V AH0 T IY0. From the CMU Pronouncing Dictionary — the standard machine-readable pronunciations of North American English.", "authority_tier": "reference", "source": "CMU Pronouncing Dictionary (cmudict) — BSD-2-Clause, Carnegie Mellon", "readable": false, "generated": false}, {"id": "card_c_2bdcd43948f0", "title": "The spectrum walk extends radio-wave production across thirteen octaves", "shelf": "connections", "surface": null, "snippet": "The electronics chain launches the wave; the walk follows it from the cavity to the eye.", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_src_book_43350", "title": "The Anatomy of the Human Peritoneum and Abdominal Cavity Considered from the Standpoint of Development and Comparative Anatomy — George S. (George Sumner) Huntington", "shelf": "gutenberg", "surface": "secular", "snippet": "The Anatomy of the Human Peritoneum and Abdominal Cavity Considered from the Standpoint of Development and Comparative Anatomy, by George S. (George Sumner) Huntington. Subjects: Peritoneum; Abdomen. ", "authority_tier": "reference", "source": "Project Gutenberg (public domain)", "readable": true, "generated": false}, {"id": "card_src_word_orbital_cavity", "title": "orbital cavity", "shelf": "dictionary", "surface": "secular", "snippet": "orbital cavity: (noun) the bony cavity in the skull containing the eyeball — syn: eye socket, orbit, cranial orbit", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_c_f6126a0d802c", "title": "The radio spectrum — one law from the cavity ↔ Schumann resonance — the Earth-ionosphere ca", "shelf": "connections", "surface": null, "snippet": "the Schumann fundamental's 38,287 km wave (the cavity itself)  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_src_word_eye_socket", "title": "eye socket", "shelf": "dictionary", "surface": "secular", "snippet": "eye socket: (noun) the bony cavity in the skull containing the eyeball — syn: orbit, cranial orbit, orbital cavity", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_c_8f2d2e047de4", "title": "The radio spectrum — one law from the cavity ↔ Microwave (WiFi, ovens) — 12 centimeters and", "shelf": "connections", "surface": null, "snippet": "WiFi's 12 cm  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_c_8a33ceeafeec", "title": "Microwave (WiFi, ovens) — 12 centimeters and ↔ The radio spectrum — one law from the cavity", "shelf": "connections", "surface": null, "snippet": "2.45 GHz; wavelength seals at 12 cm  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_c_3a2e31a61eaf", "title": "The radio spectrum — one law from the cavity ↔ Shortwave (HF) — around the world on the ion", "shelf": "connections", "surface": null, "snippet": "shortwave's 19 m skip band  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}], "house": {"door": "FIND", "kind": "cards", "trail": "results", "seal": null, "next_step": {"do": "open the top card", "door": "FIND", "tool": "card_get", "params": {"id": "card_n_51ecbfa0bb5a"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}