{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.field-phenomenon","code":"thing-field-phenomenon","url":"https://ver.cy/models/thing/field-phenomenon/","name":"field","alternateNames":["electrostatic field","electric field","field of force","force field","gravitational field","magnetosphere","solar magnetic field","magnetic field","magnetic flux","flux","radiation field"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"noun.phenomenon","plane":"PHY","domain":["PHY.FLW"],"industry":[],"navPath":"","tags":[],"facets":{"substance":"energy","origin":"natural","agency":"inert","mobility":"not-applicable","scale":"not-applicable","affordances":["observable"]}},"whatItIs":"In physics, the region around a source within which it can exert force on other objects, described by a field such as the electric, magnetic, electromagnetic or gravitational field; includes force fields and magnetospheres.","purpose":"Let an agent handle physical fields by type, source, strength, units and effects, and separate them from other senses of field.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Exists around a source","Exerts force on other objects","Scalar or vector","Described by field equations"],"structure":{"bundles":[{"id":"type","name":"Type","description":"Which field.","layers":[{"id":"kind","name":"Kind","description":"Electric, magnetic.","findings":[{"id":"kind-finding","name":"Kind","description":"Field type.","questions":[{"text":"Which field is meant?","kind":"definition"},{"text":"What is its source?","kind":"definition"}]}]},{"id":"nature","name":"Nature","description":"Scalar or vector.","findings":[{"id":"nature-finding","name":"Nature","description":"Mathematical nature.","questions":[{"text":"Is it a scalar, vector or tensor field?","kind":"definition"},{"text":"Which equations describe it?","kind":"definition"}]}]}]},{"id":"strength","name":"Strength","description":"Measurement.","layers":[{"id":"value","name":"Value","description":"Field strength.","findings":[{"id":"value-finding","name":"Value","description":"Field strength.","questions":[{"text":"What is the field strength here?","kind":"measurement"},{"text":"In which unit?","kind":"definition"}]}]},{"id":"mapping","name":"Mapping","description":"Field lines.","findings":[{"id":"mapping-finding","name":"Mapping","description":"Mapping.","questions":[{"text":"How can the field be mapped?","kind":"action"},{"text":"With which instrument?","kind":"definition"}]}]}]},{"id":"effects","name":"Effects","description":"Forces.","layers":[{"id":"force","name":"Force","description":"On objects.","findings":[{"id":"force-finding","name":"Force","description":"Force.","questions":[{"text":"What force does the field exert on this object?","kind":"measurement"},{"text":"How is it calculated?","kind":"definition"}]}]},{"id":"planetary","name":"Planetary","description":"Magnetospheres.","findings":[{"id":"planetary-finding","name":"Planetary","description":"Magnetospheres.","questions":[{"text":"How does a planetary magnetic field shield the surface?","kind":"definition"},{"text":"From which mission data?","kind":"provenance"}]}]}]},{"id":"exposure","name":"Exposure","description":"Health and safety.","layers":[{"id":"limits","name":"Limits","description":"Guidelines.","findings":[{"id":"limits-finding","name":"Limits","description":"Exposure limits.","questions":[{"text":"Is exposure within ICNIRP or legal limits?","kind":"boundary"},{"text":"Who measured it?","kind":"provenance"}]}]},{"id":"senses","name":"Senses","description":"Disambiguation.","findings":[{"id":"senses-finding","name":"Senses","description":"Other senses.","questions":[{"text":"Is a field of land, sport or study meant?","kind":"boundary"},{"text":"Which entry fits?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain fields and their units from physics sources.","Report measured field strengths with the instrument and conditions used."],"mustNot":["Present unproven health claims about everyday electromagnetic fields as established.","Dismiss real exposure limits for strong fields near equipment.","Sell or promote devices claiming to shield or heal through fields without evidence."],"requiresHuman":["Allowing people near equipment with strong magnetic or radio fields, such as scanners or transmitters."]},"ethics":{"considerations":["Fear about fields is used to sell useless products and spread misinformation.","Strong fields near some equipment are real hazards, especially for people with implants."],"affectedParties":["People with medical implants","Workers near strong sources","The general public"]},"owners":{"steward":"Nobody: a physical phenomenon held in common.","roles":[],"masterSystems":[]},"relations":[{"target":"oewn-11439518-n","type":"parent","note":"registry parent class"},{"target":"physical phenomenon","type":"related","note":"category"},{"target":"Maxwell equations and general relativity","type":"related","note":"theories"},{"target":"force","type":"related","note":"effect"},{"target":"field (land)","type":"related","note":"another sense"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.field-phenomenon","Open English WordNet: oewn-11477177-n","SI units: V/m, T, N/kg field strength units"]},"properties":{"applicability":"required","items":["Electric field strength:  V/m - Electric field strength is measured at a specified position using a calibrated electric field probe.","Magnetic flux density:  T - Magnetic flux density is measured at a specified position using a calibrated magnetometer.","Gravitational field strength:  N/kg - Gravitational field strength is determined from gravitational acceleration using a gravimeter."]},"recognition":{"applicability":"required","items":["Field lines and maps","Units such as V/m, tesla, N/kg","Agricultural or sports fields are other senses","Invisible; shown by field lines, iron filings or measurements."]},"capabilities":{"applicability":"required","items":["compute field strength","map field lines","measure fields with instruments","assess exposure to fields"]},"hazards":{"applicability":"required","items":["Overstating EMF health claims","Strong magnetic fields near MRI","Unit confusion"]},"interfaces":{"applicability":"required","items":["ICNIRP exposure guidelines","EU Directive 2013/35/EU on EMF at work"]},"context":{"applicability":"required","items":["Explaining forces at a distance and wave propagation.","electric fields","magnetic fields","electromagnetic fields","gravitational fields","magnetospheres"]}},"sources":[{"title":"Open English WordNet 2024, synset oewn-11477177-n","url":"https://en-word.net/id/oewn-11477177-n","note":"sense and gloss of the concept"},{"title":"Wiktionary: field","url":"https://en.wiktionary.org/wiki/field","note":"word senses and usage"}],"openQuestions":["Should field types be separate entries?","How should exposure guidance be linked?","How should other senses be split off?"],"resources":{"spec":"/models/things/publications/thing-field-phenomenon/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-field-phenomenon/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T07:58:54Z","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":"filled","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 2026-10-07T12:16:27+00:00: completeness 1.00; sense: WordNet gloss; 2 live sources; review by codex: pass"},"score":1.0}}