{"query": "Schumann resonance — the Earth-ionosphere cavity, sealed hon", "count": 20, "results": [{"id": "card_theory_plasma_physics", "title": "Plasma physics (the fourth state, and most of the universe)", "shelf": "theories", "surface": "secular", "snippet": "Plasma physics (the fourth state, and most of the universe) — an engine domain that can touch it: physics. Calibration: map-only — specific relations compute; the regime as a whole is not a sealable c", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "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_fa9c63a55413", "title": "Electronics — the resonant chain, from Ohm's ↔ Schumann resonance — the Earth-ionosphere ca", "shelf": "connections", "surface": null, "snippet": "Read it upwards in scale and it is the Schumann cavity: the same resonance physics, planet-sized.  — 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_tool_schumann_resonance", "title": "The Schumann resonance — the planet's cavity tone, sealed", "shelf": "codex", "surface": "secular", "snippet": "The Earth-ionosphere cavity rings at an idealized fundamental f1 = (c/(2*pi*a))*sqrt(2) ~ 10.59 Hz (sealed on the schumann stick - run tick.py schumann); the OBSERVED ~7.83 Hz is lower by ~0.74, the f", "authority_tier": "engine_derived", "source": "Narrow Highway — the instruments", "readable": false, "generated": false}, {"id": "card_c_d931ef4a580f", "title": "Radio-wave production — the chain leaves the ↔ Schumann resonance — the Earth-ionosphere ca", "shelf": "connections", "surface": null, "snippet": "Scale the cavity up from the bench to the planet and the same physics is the Schumann resonance: lightning the oscillator, the Earth-ionosphere gap the tuned circuit.  — a concord the card itself stat", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_c_8d164ab1d7cc", "title": "Schumann resonance instantiates the spectral-modes lens", "shelf": "connections", "surface": null, "snippet": "The Earth-ionosphere cavity is a literal, physical instance of spectral modes: the sqrt(n(n+1)) ladder is the sphere's own Fourier basis, rung by lightning.", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_c_af8758191b5b", "title": "Schumann resonance — the Earth-ionosphere ca ↔ Radio-wave production — the chain leaves the", "shelf": "connections", "surface": null, "snippet": "a Schumann receiver just a coil and an amplifier — resonance, radio-wave production, the largest instrument on Earth  — 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_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_c_c1d6d6e7a1d5", "title": "Schumann resonance — the Earth-ionosphere ca ↔ The map's axes are its spectral modes (the F", "shelf": "connections", "surface": null, "snippet": "the ideal harmonic ladder obeys f2/f1 = √3 exactly (the fingerprint of √(n(n+1)) spherical modes)  — 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_pron_ionosphere", "title": "ionosphere", "shelf": "pronunciation", "surface": "secular", "snippet": "ionosphere: pronounced (ARPABET) AY2 AA1 N AO0 S F IY2 R. 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_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_c_4e1e5d477805", "title": "Schumann resonance — the Earth-ionosphere ca ↔ Electronics — the resonant chain, from Ohm's", "shelf": "connections", "surface": null, "snippet": "This card anchors the electronics cluster at planetary scale  — a concord the card itself states; mined + verified.", "authority_tier": "engine_derived", "source": "Concordance miner — 2026-07-11", "readable": false, "generated": false}, {"id": "card_comms_propagation", "title": "Propagation — why range changes with band and time of day", "shelf": "communications", "surface": "secular", "snippet": "Match the band to the distance: VHF/UHF (2m/70cm, GMRS, MURS) travel LINE-OF-SIGHT — great local, blocked by hills and horizon. HF (80/40/20m) bounces off the ionosphere ('skip') to reach over the hor", "authority_tier": "reference", "source": "U.S. Army field antenna & signaling references (public domain)", "readable": false, "generated": false}, {"id": "card_src_word_ionosphere", "title": "ionosphere", "shelf": "dictionary", "surface": "secular", "snippet": "ionosphere: (noun) the outer region of the Earth's atmosphere; contains a high concentration of free electrons", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_src_word_sky_wave", "title": "sky wave", "shelf": "dictionary", "surface": "secular", "snippet": "sky wave: (noun) a radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_n_a735e61f7ca1", "title": "Shortwave (HF) — around the world on the ionosphere's mirror", "shelf": "science", "surface": "secular", "snippet": "3–30 MHz; the 19 m band's wavelength seals at 15 MHz: https://narrowhighway.com/s/d6211f4efb2518c6de145decf57f27b131a01c24ce7841853f395b7bc986c323 . Here the ionosphere's\nF-layer refracts waves back t", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_src_word_ionospheric_wave", "title": "ionospheric wave", "shelf": "dictionary", "surface": "secular", "snippet": "ionospheric wave: (noun) a sky wave that is reflected by the ionosphere", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_theory_systems_engineering", "title": "Systems engineering (requirements, interfaces, and emergent failure)", "shelf": "theories", "surface": "secular", "snippet": "Systems engineering (requirements, interfaces, and emergent failure) — an engine domain that can touch it: operations_research. Calibration: map-only — a discipline of practice; reliability and margin", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_carnot_efficiency", "title": "The Carnot limit (the ceiling on every engine ever built)", "shelf": "theories", "surface": "secular", "snippet": "The Carnot limit (the ceiling on every engine ever built) — an engine domain that can touch it: thermodynamics. Calibration: seals — the efficiency bound computes from two temperatures. No heat engine", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "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_theory_plasma_physics"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}