{"query": "Euler 1757 — Principes généraux du mouvement des fluides (E2", "count": 20, "results": [{"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}, {"id": "card_theory_heat_transfer", "title": "Heat transfer (conduction, convection, radiation)", "shelf": "theories", "surface": "secular", "snippet": "Heat transfer (conduction, convection, radiation) — an engine domain that can touch it: thermodynamics. Calibration: seals — Fourier's law, R-values and Stefan–Boltzmann all compute. Heat moves three ", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_emergence", "title": "Emergence & self-organization (more is different)", "shelf": "theories", "surface": "secular", "snippet": "Emergence & self-organization (more is different) — an engine domain that can touch it: physics. Calibration: map-only — a structural claim about levels, not a computation. A system has properties non", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_kinetic_theory_of_gases", "title": "Kinetic theory of gases", "shelf": "theories", "surface": "secular", "snippet": "Kinetic theory of gases — an engine domain that can touch it: thermodynamics. Calibration: partial — RMS speeds and mean free paths compute; the microscopic picture is a model. A gas is a swarm of mol", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"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_theory_fluid_mechanics", "title": "Fluid mechanics (Bernoulli, Reynolds, Navier–Stokes)", "shelf": "theories", "surface": "secular", "snippet": "Fluid mechanics (Bernoulli, Reynolds, Navier–Stokes) — an engine domain that can touch it: hydrology. Calibration: seals — continuity, Bernoulli and Reynolds number compute directly. CONTINUITY first:", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_simple_machines", "title": "Simple machines & buoyancy (Archimedes)", "shelf": "theories", "surface": "secular", "snippet": "Simple machines & buoyancy (Archimedes) — an engine domain that can touch it: physics. Calibration: seals — mechanical advantage, load and displaced volume all compute. Six machines — lever, wheel and", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_n_ff27b07c4577", "title": "Fluid dynamics as the behavior of the axes", "shelf": "concepts", "surface": "secular", "snippet": "Matt: 'Fluid dynamics as behavior of axes? something along that line.' The axes are not static — they FLOW and redistribute as the map grows. Fluid dynamics may describe their behavior: a turbulent fl", "authority_tier": "matt", "source": "Operator's seed (Matt) — honest grade: resonance", "readable": false, "generated": false}, {"id": "card_n_8530c72a2201", "title": "Fluid probability dynamics — one continuity equation across physics, geometry, and ML", "shelf": "science", "surface": "secular", "snippet": "One equation wears many clothes. Probability is a conserved fluid: the continuity equation\ndρ/dt + ∇·J = 0 (current J = ρv) says density is never created or destroyed — it only flows. The\nsame skeleto", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-08", "readable": false, "generated": false}, {"id": "card_n_0a41c0e3298d", "title": "Pheromones — the molecule is the message", "shelf": "science", "surface": "secular", "snippet": "A pheromone is chemistry acting as language: a molecule IS a signal. Sealed: a\n20-component blend encodes 2^20 = 1,048,576 distinguishable messages (~4.3 bits per component),\nand an ant's trail evapor", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_bridge_theory_geostrophic_balance__physical_oceanography", "title": "Bridge: Geostrophic balance & Coriolis dynamics  ↔  Physical oceanography (hydrostatics, tides)", "shelf": "bridges", "surface": "secular", "snippet": "Geostrophic balance & Coriolis dynamics and Physical oceanography (hydrostatics, tides) are the same form in different domains. the same Coriolis balance drives ocean gyres — one fluid dynamics across", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_bridge_theory_circulation_harvey__fluid_mechanics", "title": "Bridge: Circulation of the blood (Harvey's quantitative argument)  ↔  Fluid mechanics (Bernoulli, Reynolds, Navier–Stokes)", "shelf": "bridges", "surface": "secular", "snippet": "Circulation of the blood (Harvey's quantitative argument) and Fluid mechanics (Bernoulli, Reynolds, Navier–Stokes) are the same form in different domains. Harvey's argument was ARITHMETIC -- ejected v", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_n_041763374eca", "title": "Fokker–Planck & Liouville — probability flow in statistical mechanics", "shelf": "science", "surface": "secular", "snippet": "The stochastic instantiation of probability-as-fluid. Fokker–Planck sets the current\nJ = μρ − D∇ρ (drift + diffusion); its steady state is the Boltzmann distribution ρ ∝ e^(−U/kT),\nwhich makes the cur", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-08", "readable": false, "generated": false}, {"id": "card_bridge_theory_dimensional_analysis__fluid_mechanics", "title": "Bridge: Dimensional analysis & similarity (Buckingham Π)  ↔  Fluid mechanics (Bernoulli, Reynolds, Navier–Stokes)", "shelf": "bridges", "surface": "secular", "snippet": "Dimensional analysis & similarity (Buckingham Π) and Fluid mechanics (Bernoulli, Reynolds, Navier–Stokes) are the same form in different domains. match the dimensionless groups -- Reynolds, Mach, Frou", "authority_tier": "reference", "source": "The Bridges — cross-domain isomorphisms", "readable": false, "generated": false}, {"id": "card_joint_renormalization_group", "title": "The renormalization group, and the continuum limit as the question", "shelf": "codex", "surface": "secular", "snippet": "Wilson's lattice (1974) and Forster, Nelson and Stephen's randomly stirred fluid (1977) run the same renormalization group: a coupling that changes with scale, a finite system whose continuum limit is", "authority_tier": "engine_derived", "source": "Narrow Highway - the Millennium floor, a joint found in the literature (operator seed)", "readable": false, "generated": false}, {"id": "card_src_mill_arnold_1966", "title": "V. I. Arnold 1966 — Sur la géométrie différentielle des groupes de Lie de dimension infinie et ses applications à l'hydrodynamique des fluides parfaits", "shelf": "millennium", "surface": "secular", "snippet": "V. I. Arnold (1966). Sur la géométrie différentielle des groupes de Lie de dimension infinie et ses applications à l'hydrodynamique des fluides parfaits. Ann. Inst. Fourier 16 (1966) 319–361. DOI 10.5", "authority_tier": "reference", "source": "V. I. Arnold (1966), Ann. Inst. Fourier 16 (1966) 319–361", "readable": false, "generated": false}, {"id": "card_src_mill_forster_nelson_stephen_1977", "title": "D. Forster 1977 — Large-distance and long-time properties of a randomly stirred fluid", "shelf": "millennium", "surface": "secular", "snippet": "D. Forster, D. R. Nelson, M. J. Stephen (1977). Large-distance and long-time properties of a randomly stirred fluid. Phys. Rev. A 16 (1977) 732–749. DOI 10.1103/PhysRevA.16.732. Canonical: https://doi", "authority_tier": "reference", "source": "D. Forster, D. R. Nelson, M. J. Stephen (1977), Phys. Rev. A 16 (1977) 732–749", "readable": false, "generated": false}, {"id": "card_joint_arnold_geodesics", "title": "Euler flow is geodesic flow on the volume-preserving diffeomorphisms", "shelf": "codex", "surface": "secular", "snippet": "Arnold (1966): the Euler equations of an ideal fluid are the geodesic equations of the group of volume-preserving diffeomorphisms with the kinetic-energy metric - the fluid as a point moving on an inf", "authority_tier": "engine_derived", "source": "Narrow Highway - the Millennium floor, a joint found in the literature (operator seed)", "readable": false, "generated": false}, {"id": "card_sys_effort_flow", "title": "The effort–flow form — the master pattern", "shelf": "systems", "surface": "secular", "snippet": "Every physical system runs on a pair: EFFORT (the push) and FLOW (the response). Electrical: voltage & current. Fluid: pressure & volumetric flow. Mechanical: force & velocity. Thermal: temperature & ", "authority_tier": "reference", "source": "The recurring form — the system analogies (standard engineering) + the design they witness to", "readable": false, "generated": false}, {"id": "card_c_77ba6d7691ca", "title": "Pheromones — the molecule is the message ↔ Radioactive decay — the exponential clock of", "shelf": "connections", "surface": null, "snippet": "Pheromones DIFFUSE down a gradient (the continuity/diffusion equation) and DECAY (the exponential clock) — the fluid and the clock of this whole map, carried in a scent.  — a concord the card itself s", "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_theory_carnot_efficiency"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}