{"query": "Optics", "count": 20, "results": [{"id": "card_src_etym_optics", "title": "optics", "shelf": "etymology", "surface": "secular", "snippet": "optics: etymology (Webster 1913) — n.: [Cf. F. optique, L. optice, Gr. Optic.]. From Webster's Revised Unabridged Dictionary (1913), public domain.", "authority_tier": "reference", "source": "Webster's Revised Unabridged Dictionary (1913), Project Gutenberg eBook #29765 — public domain", "readable": true, "generated": false}, {"id": "card_instr_optics", "title": "Optics", "shelf": "codex", "surface": "secular", "snippet": "The Optics verifier (src/concordance/verifiers/optics.py). Builds on: The fine-structure scale (α). Found from the code's own imports, never invented; the module keeps the logic, this card is a pointe", "authority_tier": "engine_derived", "source": "verifier: optics", "readable": false, "generated": false}, {"id": "card_theory_wave_optics", "title": "Wave optics (Huygens, Snell's law, diffraction)", "shelf": "theories", "surface": "secular", "snippet": "Wave optics (Huygens, Snell's law, diffraction) — an engine domain that can touch it: optics. Calibration: seals — refraction, lens and diffraction relations compute. Light behaves as a wave: it refra", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "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_depth_of_field", "title": "Depth of field & hyperfocal distance", "shelf": "theories", "surface": "secular", "snippet": "Depth of field & hyperfocal distance — an engine domain that can touch it: photography. Calibration: seals — a deterministic verifier can CONFIRM or BREAK checkable claims drawn from it, and seal them", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "readable": false, "generated": false}, {"id": "card_bridge_master_stationary_action", "title": "Master equation: delta(integral L) = 0", "shelf": "bridges", "surface": "secular", "snippet": "nature takes the extremal path — physics as optimization over functions. ONE equation, 5 domains, connected by a change of variable: physics [L = kinetic - potential; the path extremizes the action]; ", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_calc_fermat_time", "title": "Fermat's least time", "shelf": "calculations", "surface": "secular", "snippet": "Fermat's least time — optics. Formula: delta (path time) = 0. Canonical FORM: optimization (d/dx f = 0) — light takes the path of least time — Snell's law falls out. Same form, different domain: this ", "authority_tier": "reference", "source": "The Calculation Map — every calculation, mapped by form", "readable": false, "generated": false}, {"id": "card_bridge_theory_acoustic_wave_theory__wave_optics", "title": "Bridge: Acoustic wave theory (harmonics, Doppler)  ↔  Wave optics (Huygens, Snell's law, diffraction)", "shelf": "bridges", "surface": "secular", "snippet": "Acoustic wave theory (harmonics, Doppler) and Wave optics (Huygens, Snell's law, diffraction) are the same form in different domains. both are the wave equation in different media: Huygens' constructi", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_bridge_theory_depth_of_field__wave_optics", "title": "Bridge: Depth of field & hyperfocal distance  ↔  Wave optics (Huygens, Snell's law, diffraction)", "shelf": "bridges", "surface": "secular", "snippet": "Depth of field & hyperfocal distance and Wave optics (Huygens, Snell's law, diffraction) are the same form in different domains. focus and the circle of confusion are optics — the lens equation on a s", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_bridge_hub_wave_optics", "title": "Hub: Wave optics (Huygens, Snell's law, diffraction) carries 3 domains", "shelf": "bridges", "surface": "secular", "snippet": "Calculations from 3 different domains (materials_science, optics, photonics) all rest on Wave optics (Huygens, Snell's law, diffraction) — one theory holding up many fields.", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_works_snell", "title": "Light bends: Snell's law at a glass surface", "shelf": "the-works", "surface": "secular", "snippet": "Passing from air into glass (n = 1.5) at 30°, a ray refracts to 19.47° — n₁ sin θ₁ = n₂ sin θ₂. The same law bends every lens and every rainbow.  Worked & sealed by the engine — sin θ₂ = (1·sin30)/1.5", "authority_tier": "verified", "source": "The Works — worked & sealed", "readable": false, "generated": false}, {"id": "card_bridge_form_logarithmic", "title": "Bridge: the logarithmic form across 18 domains", "shelf": "bridges", "surface": "secular", "snippet": "The canonical form logarithmic (y = k * log(x / x0)) is the SAME computation in 18 different domains — acoustics, astronomy, chemistry, computer_science, cybersecurity, ecology, economics, electrochem", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_bridge_form_trigonometric", "title": "Bridge: the trigonometric form across 8 domains", "shelf": "bridges", "surface": "secular", "snippet": "The canonical form trigonometric (a sin(theta) = b sin(phi)) is the SAME computation in 8 different domains — astronomy, ephemeris, geography, geometry, linear_algebra, optics, photography, photonics.", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_bridge_hub_quantization", "title": "Hub: Quantization (why nature comes in whole units) carries 3 domains", "shelf": "bridges", "surface": "secular", "snippet": "Calculations from 3 different domains (optics, photonics, physics) all rest on Quantization (why nature comes in whole units) — one theory holding up many fields.", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_works_exposure", "title": "The exposure value of a camera setting", "shelf": "the-works", "surface": "secular", "snippet": "At f/8 and 1/250 s the exposure value is EV = log₂(N²/t) ≈ 13.97 — the single number that makes a bright beach and a dim room comparable.  Worked & sealed by the engine — EV = log₂(8² / 0.004) ≈ 13.97", "authority_tier": "verified", "source": "The Works — worked & sealed", "readable": false, "generated": false}, {"id": "card_src_fed_elementaryoptics00unitrich", "title": "Elementary optics and applications to fire control instruments", "shelf": "practical", "surface": "secular", "snippet": "Elementary optics and applications to fire control instruments. A United States federal publication, public domain (17 USC 105). The full text (246,324 bytes) is held on the ark; waybill sha256 f81403", "authority_tier": "reference", "source": "US Army field & technical manuals (PD, 17 USC 105)", "readable": true, "generated": false}, {"id": "card_src_word_fiber_optic_transmission_system", "title": "fiber-optic transmission system", "shelf": "dictionary", "surface": "secular", "snippet": "fiber-optic transmission system: (noun) a communication system using fiber optic cables — syn: fibre-optic transmission system, FOTS", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_src_word_fibre_optic_transmission_system", "title": "fibre-optic transmission system", "shelf": "dictionary", "surface": "secular", "snippet": "fibre-optic transmission system: (noun) a communication system using fiber optic cables — syn: fiber-optic transmission system, FOTS", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_src_word_optic_disc", "title": "optic disc", "shelf": "dictionary", "surface": "secular", "snippet": "optic disc: (noun) the point where the optic nerve enters the retina; not sensitive to light — syn: blind spot, optic disk", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_src_word_optic_disk", "title": "optic disk", "shelf": "dictionary", "surface": "secular", "snippet": "optic disk: (noun) the point where the optic nerve enters the retina; not sensitive to light — syn: blind spot, optic disc", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "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_src_etym_optics"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}