{"query": "A thirty-year-old's maximum heart rate", "count": 20, "results": [{"id": "card_works_heart_rate", "title": "A thirty-year-old's maximum heart rate", "shelf": "the-works", "surface": "secular", "snippet": "The Tanaka formula estimates maximum heart rate as 208 − 0.7·age — 187 bpm at thirty, the modern refinement of the old 220 − age rule.  Worked & sealed by the engine — HRmax = 208 − 0.7·30 = 187 bpm. ", "authority_tier": "verified", "source": "The Works — worked & sealed", "readable": false, "generated": false}, {"id": "card_src_pron_old_s", "title": "old's", "shelf": "pronunciation", "surface": "secular", "snippet": "old's: pronounced (ARPABET) OW1 L D Z. 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_theory_historical_chronology", "title": "Historical chronology (era reckoning, elapsed years)", "shelf": "theories", "surface": "secular", "snippet": "Historical chronology (era reckoning, elapsed years) — an engine domain that can touch it: history_chronology. Calibration: seals — elapsed-year arithmetic computes exactly. Placing events on one time", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_income_capitalization", "title": "Income capitalization (V = NOI / cap rate)", "shelf": "theories", "surface": "secular", "snippet": "Income capitalization (V = NOI / cap rate) — an engine domain that can touch it: real_estate. Calibration: seals — a deterministic verifier can CONFIRM or BREAK checkable claims drawn from it, and sea", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "readable": false, "generated": false}, {"id": "card_theory_real_estate_valuation", "title": "Real-estate valuation (cap rate, DCF)", "shelf": "theories", "surface": "secular", "snippet": "Real-estate valuation (cap rate, DCF) — an engine domain that can touch it: real_estate. Calibration: seals — cap rate, NOI and discounted cash flows compute. CAP RATE = net operating income ÷ price. ", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_calendar_theory", "title": "Calendar theory (Gregorian reform, leap rules)", "shelf": "theories", "surface": "secular", "snippet": "Calendar theory (Gregorian reform, leap rules) — an engine domain that can touch it: calendar_time. Calibration: seals — leap rules and date arithmetic compute exactly. The tropical year is about 365.", "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}, {"id": "card_theory_time_value_of_money_discounting", "title": "Time value of money & discounting", "shelf": "theories", "surface": "secular", "snippet": "Time value of money & discounting — an engine domain that can touch it: finance. Calibration: seals — present value, annuities and amortisation compute exactly. A pound today is worth more than a poun", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_exercise_physiology", "title": "Exercise physiology (VO₂max, HR zones)", "shelf": "theories", "surface": "secular", "snippet": "Exercise physiology (VO₂max, HR zones) — an engine domain that can touch it: exercise_science. Calibration: seals — max HR estimates, zones and work rates compute. VO₂max is the maximum rate of oxygen", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_circulation_harvey", "title": "Circulation of the blood (Harvey's quantitative argument)", "shelf": "theories", "surface": "secular", "snippet": "Circulation of the blood (Harvey's quantitative argument) — an engine domain that can touch it: medicine. Calibration: seals — cardiac output and flow arithmetic compute. Blood circulates in a closed ", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_casimir_effect", "title": "The Casimir effect (structured energy of the quantum vacuum)", "shelf": "theories", "surface": "secular", "snippet": "The Casimir effect (structured energy of the quantum vacuum) — an engine domain that can touch it: physics. Calibration: seals — a deterministic verifier can CONFIRM or BREAK checkable claims drawn fr", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "readable": false, "generated": false}, {"id": "card_theory_saros_eclipse_cycle", "title": "The Saros cycle (eclipse prediction)", "shelf": "theories", "surface": "secular", "snippet": "The Saros cycle (eclipse prediction) — an engine domain that can touch it: ephemeris. 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_theory_digital_analog", "title": "Digital versus analog (why discreteness survives copying)", "shelf": "theories", "surface": "secular", "snippet": "Digital versus analog (why discreteness survives copying) — an engine domain that can touch it: computer_science. Calibration: map-only — sampling rates and bit depth are ordinary arithmetic, and THIS", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_atmospheric_thermodynamics", "title": "Atmospheric thermodynamics (dew point, lapse rate)", "shelf": "theories", "surface": "secular", "snippet": "Atmospheric thermodynamics (dew point, lapse rate) — an engine domain that can touch it: meteorology. Calibration: seals — dew point, humidity and lapse rates compute. Rising air expands and cools wit", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_molecular_symmetry_point_groups", "title": "Molecular symmetry & point groups", "shelf": "theories", "surface": "secular", "snippet": "Molecular symmetry & point groups — an engine domain that can touch it: molecular_geometry. Calibration: seals — a deterministic verifier can CONFIRM or BREAK checkable claims drawn from it, and seal ", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "readable": false, "generated": false}, {"id": "card_theory_scaling_laws", "title": "Scaling laws & allometry (Kleiber's law, the square-cube)", "shelf": "theories", "surface": "secular", "snippet": "Scaling laws & allometry (Kleiber's law, the square-cube) — an engine domain that can touch it: biology. Calibration: seals — scaling exponents and ratios compute exactly. Size is not neutral: when a ", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_aufbau_configuration", "title": "Aufbau principle & electron configuration", "shelf": "theories", "surface": "secular", "snippet": "Aufbau principle & electron configuration — an engine domain that can touch it: periodic_table. Calibration: seals — a deterministic verifier can CONFIRM or BREAK checkable claims drawn from it, and s", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "readable": false, "generated": false}, {"id": "card_theory_biochemistry_enzymes", "title": "Biochemistry & enzymes (catalysis at body temperature)", "shelf": "theories", "surface": "secular", "snippet": "Biochemistry & enzymes (catalysis at body temperature) — an engine domain that can touch it: biology. Calibration: seals — reaction rates, Michaelis–Menten kinetics and energy budgets compute. An enzy", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_singular_value_decomposition", "title": "Singular value decomposition (SVD)", "shelf": "theories", "surface": "secular", "snippet": "Singular value decomposition (SVD) — an engine domain that can touch it: linear_algebra. Calibration: seals — a deterministic verifier can CONFIRM or BREAK checkable claims drawn from it, and seal the", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "readable": false, "generated": false}, {"id": "card_theory_platonic_solids", "title": "The five Platonic solids", "shelf": "theories", "surface": "secular", "snippet": "The five Platonic solids — an engine domain that can touch it: geometry. Calibration: seals — a deterministic verifier can CONFIRM or BREAK checkable claims drawn from it, and seal them. There are EXA", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "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_works_heart_rate"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}