{ "model": { "rank": 6121, "code": "thing-q190291", "model_id": "vr.tr.displacement", "name": "displacement", "purpose": "Let an agent explain displacement as a physical vector, relay its definition, related vectors and units from physics sources, describe the named forms, and distinguish physical displacement from distance travelled, velocity, ship displacement, fluid displacement and psychological displacement.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q190291/", "tier": 2, "score": 62, "payload": { "layer": "wikidata", "aliases": [ "sound particle displacement", "lattice vector", "displacement vector", "Burgers vector", "root-mean-square sound particle displacement" ], "aliasCount": 5, "merged": 5, "knownIn": 62, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.displacement-process", "source": { "dataset": "wikidata", "item": "Q190291", "url": "https://www.wikidata.org/wiki/Q190291", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-14T01:45:58Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 4, "engine": "claude" }, "metaModel": { "id": "THING-Q190291", "registryId": "vr.tr.displacement", "name": "displacement", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q190291/", "model": { "registry_id": "vr.tr.displacement", "name": "displacement", "purpose": "Let an agent explain displacement as a physical vector, relay its definition, related vectors and units from physics sources, describe the named forms, and distinguish physical displacement from distance travelled, velocity, ship displacement, fluid displacement and psychological displacement.", "definition": "In physics, a vector quantity describing the change in position of a point, the straight-line distance and direction from an initial to a final position, distinct from the path length travelled, measured in metres; specialised forms the registry aliases name include the displacement vector in mechanics, sound particle displacement and its root-mean-square value in acoustics, the lattice vector describing periodic positions in crystals, and the Burgers vector characterising a dislocation in a crystal. Displacement also has other senses in fluid mechanics, ship tonnage, psychology and geology, which are distinct concepts.", "what_it_is_for": "Describing change in position.", "affordances": [ "explain the concept", "relay related vectors", "describe named forms", "distinguish other senses" ], "distinguishing_features": [ "Vector quantity", "Start-to-end, not path", "Direction and magnitude", "Specialised forms" ], "appearance": "Not a physical object; an arrow from start to end position in diagrams.", "visual_identification": [ "Vector from initial to final position", "Sound particle displacement, lattice vector, displacement vector, Burgers vector, root-mean-square sound particle displacement", "Distance travelled is path length; velocity is rate of displacement; ship displacement is weight of water displaced; psychological displacement is a defence mechanism" ], "physical_properties": [ { "quantity": "SI unit", "typical_range": "metre", "unit": "unit", "note": "" }, { "quantity": "vector or scalar", "typical_range": "vector", "unit": "note", "note": "has direction" }, { "quantity": "Burgers vector", "typical_range": "characterises dislocations", "unit": "note", "note": "crystallography" } ], "families_and_kinds": [ "mechanical displacement", "acoustic particle displacement", "crystallographic vectors such as lattice and Burgers vectors" ], "related_models": [ { "relation": "is a kind of", "target": "vector quantity", "why": "in registry terms" }, { "relation": "is contrasted with", "target": "distance", "why": "" }, { "relation": "is the integral of", "target": "velocity", "why": "" }, { "relation": "includes", "target": "Burgers vector", "why": "" } ], "identifiers": [], "standards_and_regulation": [ "SI units", "ISO 80000 quantities and units" ], "failure_modes_and_hazards": [ "Confusing displacement and distance", "Confusing physical and other senses", "Sign and direction errors" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What displacement is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is displacement in physics, and how does it differ from distance, velocity, ship displacement, fluid displacement and psychological displacement?", "kind": "definition" }, { "text": "Is the question about mechanics, acoustics, crystallography or another sense?", "kind": "boundary" } ] } ] }, { "id": "forms", "name": "Forms", "description": "Named forms.", "findings": [ { "id": "forms-finding", "name": "Forms", "description": "Forms.", "questions": [ { "text": "What are the displacement vector, sound particle displacement, lattice vector and Burgers vector?", "kind": "definition" }, { "text": "Which entry fits the specific form?", "kind": "action" } ] } ] } ] }, { "id": "mechanics", "name": "Mechanics", "description": "Mechanics.", "rationale": "Science.", "layers": [ { "id": "kinematics", "name": "Kinematics", "description": "Kinematics.", "findings": [ { "id": "kinematics-finding", "name": "Kinematics", "description": "Kinematics.", "questions": [ { "text": "How does displacement relate to velocity and acceleration?", "kind": "measurement" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "vectors", "name": "Vectors", "description": "Vector nature.", "findings": [ { "id": "vectors-finding", "name": "Vectors", "description": "Vectors.", "questions": [ { "text": "Why is displacement a vector while distance is a scalar?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "specialised", "name": "Specialised", "description": "Specialised forms.", "rationale": "Science.", "layers": [ { "id": "acoustics", "name": "Acoustics", "description": "Sound particle displacement.", "findings": [ { "id": "acoustics-finding", "name": "Acoustics", "description": "Acoustics.", "questions": [ { "text": "What is sound particle displacement in acoustics?", "kind": "provenance" }, { "text": "Which entry fits particle displacement?", "kind": "action" } ] } ] }, { "id": "crystals", "name": "Crystals", "description": "Lattice and Burgers vectors.", "findings": [ { "id": "crystals-finding", "name": "Crystals", "description": "Crystals.", "questions": [ { "text": "How do lattice and Burgers vectors describe crystals and dislocations?", "kind": "provenance" }, { "text": "Is the information accurate?", "kind": "boundary" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Other senses.", "rationale": "Definition.", "layers": [ { "id": "senses", "name": "Senses", "description": "Other senses.", "findings": [ { "id": "senses-finding", "name": "Senses", "description": "Senses.", "questions": [ { "text": "How do ship, fluid and psychological displacement differ from the physics sense?", "kind": "provenance" }, { "text": "Which entry fits displacement (ship)?", "kind": "action" } ] } ] }, { "id": "measurement", "name": "Measurement", "description": "Measurement.", "findings": [ { "id": "measurement-finding", "name": "Measurement", "description": "Measurement.", "questions": [ { "text": "How is displacement measured with sensors such as LVDTs?", "kind": "measurement" }, { "text": "Is the information current?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should the Burgers vector be a separate entry?", "Should acoustic particle displacement be separated?", "How should other senses be disambiguated?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a displacement, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain displacement as a physical vector, relay its definition, related vectors and units from physics sources, describe the named forms, and distinguish physical displacement from distance travelled, velocity, ship displacement, fluid displacement and psychological displacement.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: sound particle displacement, lattice vector, displacement vector, Burgers vector, root-mean-square sound particle displacement.", "5 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 62 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a displacement, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "sound particle displacement", "lattice vector", "displacement vector", "Burgers vector", "root-mean-square sound particle displacement" ] } ], "standing": "Described in 62 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 5 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one displacement from another, and a displacement from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a displacement, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a displacement, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a displacement is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a displacement, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a displacement, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a displacement is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a displacement sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a displacement, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a displacement, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a displacement is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a displacement from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a displacement, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a displacement, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a displacement is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a displacement passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a displacement between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a displacement, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a displacement, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a displacement is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a displacement, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a displacement is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a displacement, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a displacement, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a displacement is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What displacement is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of displacement are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is displacement operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of displacement and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of displacement?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as displacement?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a displacement came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a displacement and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a displacement, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a displacement, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a displacement is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a displacement is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a displacement, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a displacement, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a displacement is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }