{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.classical-mechanics","code":"thing-q11397","url":"https://ver.cy/models/thing/q11397/","name":"classical mechanics","alternateNames":["theoretical mechanics","continuum mechanics","point mechanics","kinematics","molecular mechanics","ice-sheet dynamics","rigid body kinematics","elastokinematics","particle kinematics","point kinematics"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Information and virtual systems","entryKind":"thing","plane":"INF","domain":["INF.KNW"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"The branch of physics that describes the motion of bodies under forces at everyday scales and speeds, from Newton laws of motion and gravitation through the Lagrangian and Hamiltonian formulations, covering kinematics, dynamics, statics, rigid bodies, oscillations, fluids and continua; it is the foundation of engineering and the limit of quantum and relativistic mechanics at large scales and low speeds.","purpose":"Let an agent explain classical mechanics and its formulations, state its domain of validity, relay standard results and references, and route problems to the appropriate subfield or to quantum and relativistic mechanics when outside the domain.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Deterministic laws of motion","Newtonian, Lagrangian and Hamiltonian formulations","Domain limited by relativity and quantum theory","Foundation of engineering mechanics"],"structure":{"bundles":[{"id":"laws","name":"Laws","description":"The foundations.","layers":[{"id":"newton","name":"Newton","description":"Newton laws.","findings":[{"id":"newton-finding","name":"Newton","description":"Newton.","questions":[{"text":"What do Newton laws state, and how do force, mass and acceleration relate?","kind":"definition"},{"text":"Is the problem within the classical domain, or does it need relativity or quantum theory?","kind":"boundary"}]}]},{"id":"formulations","name":"Formulations","description":"Lagrangian and Hamiltonian.","findings":[{"id":"formulations-finding","name":"Formulations","description":"Formulations.","questions":[{"text":"How do Lagrangian and Hamiltonian formulations restate mechanics, and when are they preferred?","kind":"definition"},{"text":"Which entry fits Hamiltonian mechanics?","kind":"action"}]}]}]},{"id":"solve","name":"Solve","description":"Problems and methods.","layers":[{"id":"problems","name":"Problems","description":"Standard problems.","findings":[{"id":"problems-finding","name":"Problems","description":"Problems.","questions":[{"text":"How are standard problems in kinematics, dynamics and oscillations solved?","kind":"action"},{"text":"Which quantities and units are involved?","kind":"measurement"}]}]},{"id":"conservation","name":"Conservation","description":"Conservation laws.","findings":[{"id":"conservation-finding","name":"Conservation","description":"Conservation.","questions":[{"text":"How do conservation of energy, momentum and angular momentum simplify problems?","kind":"definition"},{"text":"Which entry fits a conservation law?","kind":"action"}]}]}]},{"id":"fields","name":"Fields","description":"Subfields and applications.","layers":[{"id":"subfields","name":"Subfields","description":"Subfields.","findings":[{"id":"subfields-finding","name":"Subfields","description":"Subfields.","questions":[{"text":"What do rigid body, continuum and celestial mechanics cover?","kind":"provenance"},{"text":"Which entry fits the subfield?","kind":"action"}]}]},{"id":"engineering","name":"Engineering","description":"Engineering use.","findings":[{"id":"engineering-finding","name":"Engineering","description":"Engineering.","questions":[{"text":"How is classical mechanics applied in engineering and simulation?","kind":"provenance"},{"text":"Which entry fits engineering mechanics?","kind":"action"}]}]}]},{"id":"learn","name":"Learn","description":"History and teaching.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did mechanics develop from Galileo and Newton to Lagrange, Hamilton and chaos theory?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"teach","name":"Teach","description":"Teaching.","findings":[{"id":"teach-finding","name":"Teach","description":"Teaching.","questions":[{"text":"How is classical mechanics taught, and which misconceptions arise?","kind":"provenance"},{"text":"Which entry fits physics education?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain the laws and formulations of classical mechanics and solve problems with them.","State where classical mechanics stops applying, at very small scales or high speeds."],"mustNot":["Apply classical results where relativistic or quantum effects matter without saying so.","Present simplified models as reliable for structures or vehicles without engineering review.","Misattribute discoveries or present the history as the work of a few men alone."],"requiresHuman":["Using calculations in safety-critical designs."]},"ethics":{"considerations":["Engineering errors based on wrong mechanics put lives at risk.","Teaching that excludes learners makes physics less accessible."],"affectedParties":["Students","Users of engineered structures"]},"owners":{"steward":"Nobody owns the field; it belongs to physics.","roles":[],"masterSystems":[]},"relations":[{"target":"Q41217","type":"parent","note":"registry parent class"},{"target":"Q81745","type":"parent","note":"registry parent class"},{"target":"mechanics","type":"related","note":"the classical part"},{"target":"classical physics","type":"related","note":"pre-quantum physics"},{"target":"special relativity","type":"related","note":"at high speeds"},{"target":"quantum mechanics","type":"related","note":"at small scales"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.classical-mechanics","Wikidata: Q11397 (https://www.wikidata.org/wiki/Q11397)"]},"properties":{"applicability":"not-applicable","items":[]},"recognition":{"applicability":"optional","items":["Newton laws and their reformulations","Valid for speeds well below light and scales well above atomic","Quantum mechanics and relativity take over outside that domain","Not visible; equations and models of motion."]},"capabilities":{"applicability":"required","items":["explain laws and formulations","solve standard problems in kinematics and dynamics","state the domain of validity","route to subfields and neighbouring theories"]},"hazards":{"applicability":"required","items":["Applying it outside its domain","Unit and sign errors","Treating idealisations as exact"]},"interfaces":{"applicability":"required","items":["SI units and ISO 80000 for quantities","No regulation of the theory itself"]},"context":{"applicability":"required","items":["Predicting and explaining motion of bodies at everyday scales.","kinematics","Newtonian dynamics and statics","Lagrangian and Hamiltonian mechanics","rigid body and rotational mechanics","continuum mechanics: fluids and solids","celestial mechanics","chaos and nonlinear dynamics"]}},"sources":[{"title":"Wikidata item Q11397: classical mechanics","url":"https://www.wikidata.org/wiki/Q11397","note":"identity and sense of the item"},{"title":"Wikipedia: Classical mechanics","url":"https://en.wikipedia.org/wiki/Classical_mechanics","note":"general description of the item"}],"openQuestions":["Should each subfield be a separate entry?","How should standard textbooks be linked?","The registry entry has merged aliases from molecular mechanics to ice-sheet dynamics; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q11397/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q11397/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T20:21:37Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:53+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane INF: no invented physical properties."},"score":1.0}}