{"query": "The Doppler effect — the acoustic redshift", "count": 20, "results": [{"id": "card_acoustics_doppler", "title": "The Doppler effect — the acoustic redshift", "shelf": "codex", "surface": "secular", "snippet": "A source moving toward you raises the pitch, away lowers it (the passing siren) - the waves bunch ahead and stretch behind. It is the acoustic cousin of the relativistic redshift of light. Rests on re", "authority_tier": "engine_derived", "source": "Narrow Highway — acoustics", "readable": false, "generated": false}, {"id": "card_theory_spectroscopy", "title": "Spectroscopy (how we know what a distant thing is made of)", "shelf": "theories", "surface": "secular", "snippet": "Spectroscopy (how we know what a distant thing is made of) — an engine domain that can touch it: optics. Calibration: seals — wavelengths, Doppler shifts and Wien's law all recompute and check. Split ", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_general_relativity", "title": "General relativity", "shelf": "theories", "surface": "secular", "snippet": "General relativity — an engine domain that can touch it: physics. Calibration: partial — specific relations verify; the field equations as a whole are map-only. Gravity is not a force but the CURVATUR", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_big_bang_cosmology_expansion", "title": "Big Bang cosmology & expansion (Hubble's law)", "shelf": "theories", "surface": "secular", "snippet": "Big Bang cosmology & expansion (Hubble's law) — an engine domain that can touch it: astronomy. Calibration: partial — the Hubble relation verifies; the origin claim is map-only (RESONANCE). v = H₀d: r", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_alm_located_relativistic_doppler_reciprocal", "title": "Almanac: Relativistic Doppler: approaching light doubles, receding halves, the product is one", "shelf": "almanac", "surface": "secular", "snippet": "SITUATION\n  Move toward a light source and its frequency rises (blueshift); move away and it falls (redshift). Relativity sets the exact factor at sqrt((1+b)/(1-b)) with b=v/c. The mathematics verifie", "authority_tier": "reference", "source": "The Almanac — verified-only practical wisdom (sealed)", "readable": false, "generated": false}, {"id": "card_floor_acoustics", "title": "Acoustics — waves, loudness, and harmonics", "shelf": "codex", "surface": "secular", "snippet": "The physics of sound and hearing, standing between matter and mind. Sound is a pressure wave in a medium (v = f lambda); loudness is logarithmic (the decibel); pitch is frequency and timbre is the har", "authority_tier": "engine_derived", "source": "Narrow Highway — acoustics", "readable": false, "generated": false}, {"id": "card_src_word_redshift", "title": "redshift", "shelf": "dictionary", "surface": "secular", "snippet": "redshift: (noun) (astronomy) a shift in the spectra of very distant galaxies toward longer wavelengths (toward the red end of the spectrum); generally interpreted as evidence that the universe is expa", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_rel_general", "title": "General relativity — gravity is the curvature of spacetime", "shelf": "codex", "surface": "secular", "snippet": "Mass-energy curves spacetime (the Einstein field equations) and bodies follow geodesics - the equivalence principle. Its tests (light deflection 1.75 arcsec, the gravitational redshift) are sealed on ", "authority_tier": "engine_derived", "source": "Narrow Highway — relativity", "readable": false, "generated": false}, {"id": "card_seal_84401a3e87fbd542a2426861bbb33a4a7ce5056cd10f20d984e34acc3dc78ffb", "title": "Receipt 84401a3e87fb… — sealed: record", "shelf": "seals", "surface": "secular", "snippet": "{\n \"anchors\": [],\n \"axis_coords\": {\n  \"axis\": \"mathematics\",\n  \"dimensions\": [\n   \"reasoning\"\n  ]\n },\n \"gate_results\": [\n  {\n   \"details\": {\n    \"broken_at\": null,\n    \"confirmed_steps\": 1,\n    \"error", "authority_tier": "engine_derived", "source": "Narrow Highway engine — sealed record", "readable": false, "generated": false}, {"id": "card_theory_double_entry_accounting_identity", "title": "Double-entry accounting identity (A = L + E)", "shelf": "theories", "surface": "secular", "snippet": "Double-entry accounting identity (A = L + E) — an engine domain that can touch it: finance. Calibration: seals — the identity is checkable to the penny. Assets equal Liabilities plus Equity. Every tra", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_zermelo_fraenkel_set_theory_zfc", "title": "Zermelo–Fraenkel set theory (ZFC)", "shelf": "theories", "surface": "secular", "snippet": "Zermelo–Fraenkel set theory (ZFC) — an engine domain that can touch it: formal_logic. Calibration: map-only — an axiomatic foundation, not a computation. Nine or so axioms about sets from which essent", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_foreshadow_mormonism_lds_under_the_test", "title": "The Latter-day Saints (Mormonism) under the test of the spirits (in love)", "shelf": "foreshadows", "surface": "secular", "snippet": "Credited where it contributes: a strong devotion to family, moral seriousness, industry, care for the poor, and a real hunger for continuing revelation and an eternal family. And then, held to the one", "authority_tier": "reference", "source": "The nations' foreshadows — gathered in love, calibrated to the Word (Acts 17)", "readable": false, "generated": false}, {"id": "card_n_48e193d28539", "title": "Romans 10", "shelf": "codex", "surface": "witness", "snippet": "1. Brothers, my heart’s desire and my prayer to God is for Israel, that they may be saved.\n2. For I testify about them that they have a zeal for God, but not according to knowledge.\n3. For being ignor", "authority_tier": "scripture", "source": "World English Bible · Romans 10", "readable": false, "generated": false}, {"id": "signpost_ezekiel_34_the_good_shepherd", "title": "Ezekiel 34 -- the false shepherds and the LORD who comes to shepherd His flock; read of Christ the Good Shepherd (John 10)", "shelf": "signposts", "surface": "secular", "snippet": "ORIGINAL HEBREW (engine-verified, live): Ezekiel 34 -- the shepherds (ra'ah, H7462, to shepherd/feed) feed THEMSELVES and not the flock (tson, H6629); so the LORD declares 'I myself will search for my", "authority_tier": "reference", "source": "Signposts among the nations — parts of the story, and the hole Christ filled (Genesis 11; Hebrews 1:1-2; Acts 17)", "readable": false, "generated": false}, {"id": "card_n_c38f4fe42317", "title": "Psalm 80 — Psalm 80", "shelf": "codex", "surface": "witness", "snippet": "<<For the Chief Musician. To the tune of \"The Lilies of the Covenant.\" A Psalm by Asaph.>> Hear us, Shepherd of Israel, you who lead Joseph like a flock, you who sit above the cherubim, shine forth. B", "authority_tier": "scripture", "source": "Psalm 80", "readable": false, "generated": false}, {"id": "card_n_f7102828f542", "title": "Martyrdom of Polycarp II", "shelf": "patristics", "surface": "witness", "snippet": "All the martyrdoms, then, were blessed and noble which took place according to the will of God. For it becomes us who profess greater piety than others, to ascribe the authority over all things to God", "authority_tier": "father", "source": "Martyrdom of Polycarp (trans. Roberts-Donaldson, 1885)", "readable": false, "generated": false}, {"id": "card_n_74c5a65a5fcb", "title": "Martyrdom of Polycarp XIX", "shelf": "patristics", "surface": "witness", "snippet": "This, then, is the account of the blessed Polycarp, who, being the twelfth that was martyred in Smyrna (reckoning those also of Philadelphia), yet occupies a place of his own in the memory of all men,", "authority_tier": "father", "source": "Martyrdom of Polycarp (trans. Roberts-Donaldson, 1885)", "readable": false, "generated": false}, {"id": "card_n_18b53f98f008", "title": "The mole — counting the uncountable", "shelf": "science", "surface": "secular", "snippet": "A mole is 6.02214076×10²³ things — exact since the 2019 SI redefinition — the bridge\nfrom atoms you cannot see to grams you can weigh. The molar mass is just the atomic weights\nadded up, sealed: water", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_n_c8f87e2dbb61", "title": "Polycarp to the Philippians V", "shelf": "patristics", "surface": "witness", "snippet": "Knowing, then, that “God is not mocked,” we ought to walk worthy of His commandment and glory. In like manner should the deacons be blameless before the face of His righteousness, as being the servant", "authority_tier": "father", "source": "Epistle of Polycarp to the Philippians (trans. Roberts-Donaldson, 1885)", "readable": false, "generated": false}, {"id": "card_n_0d425196edf6", "title": "Ignatius to the Magnesians IX", "shelf": "patristics", "surface": "witness", "snippet": "If, therefore, those who were brought up in the ancient order of things have come to the possession of a new hope, no longer observing the Sabbath, but living in the observance of the Lord’s day, on w", "authority_tier": "father", "source": "Ignatius to the Magnesians (shorter recension; trans. Roberts-Donaldson, 1885)", "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_acoustics_doppler"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}