{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.thermometer","code":"thing-q646","url":"https://ver.cy/models/thing/q646/","name":"thermometer","alternateNames":["tasimeter","candy thermometer","pet thermometer","thermohygrometer","maximum thermometer","minimum thermometer","hydrogen thermometer","liquid thermometer","vapour pressure thermometer","Breguet's thermometer","Pill thermometer","room thermometer"],"kind":"thing","status":"published","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"An instrument that measures temperature, historically using the expansion of liquids such as mercury or alcohol in a glass tube and today often electronic sensors such as thermistors, thermocouples and infrared detectors, in forms the registry aliases name including candy or sugar thermometers for cooking, pet thermometers, thermohygrometers that also measure humidity, maximum and minimum thermometers that record extremes, as in Six s design of 1782, and the tasimeter, an instrument devised by Thomas Edison in 1878 to detect very small temperature changes; mercury thermometers are being phased out under the Minamata Convention. High fever in young infants needs prompt medical advice.","purpose":"Let an agent explain thermometers, relay principles, types, scales, calibration and safe use from metrology and health sources, describe the named instruments, advise safe handling of broken mercury thermometers and fever guidance for infants, and distinguish thermometers from thermostats, thermographs, pyrometers as high-temperature sensors and hygrometers.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Temperature sensing","Many principles","Calibrated scales","Medical and scientific uses"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a thermometer is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a thermometer, and how does it differ from thermostats, thermographs, pyrometers and hygrometers?","kind":"definition"},{"text":"Does a baby under three months have a fever, or has a mercury thermometer broken, in which case seek medical advice or follow official clean-up guidance?","kind":"boundary"}]}]},{"id":"named","name":"Named","description":"Named instruments.","findings":[{"id":"named-finding","name":"Named","description":"Named.","questions":[{"text":"What are tasimeters, candy, pet and maximum and minimum thermometers and thermohygrometers?","kind":"definition"},{"text":"Which entry fits the specific instrument?","kind":"action"}]}]}]},{"id":"science","name":"Science","description":"Principles.","layers":[{"id":"principles","name":"Principles","description":"Sensing principles.","findings":[{"id":"principles-finding","name":"Principles","description":"Principles.","questions":[{"text":"How do liquid expansion, resistance, thermocouples and infrared sensors measure temperature?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"scales","name":"Scales","description":"Temperature scales.","findings":[{"id":"scales-finding","name":"Scales","description":"Scales.","questions":[{"text":"How do Celsius, Fahrenheit and kelvin scales relate, and what is ITS-90?","kind":"measurement"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"use","name":"Use","description":"Safe use.","layers":[{"id":"medical","name":"Medical","description":"Taking temperatures.","findings":[{"id":"medical-finding","name":"Medical","description":"Medical.","questions":[{"text":"What do health services advise about measuring body temperature?","kind":"provenance"},{"text":"Which entry fits fever?","kind":"action"}]}]},{"id":"mercury","name":"Mercury","description":"Mercury phase-out.","findings":[{"id":"mercury-finding","name":"Mercury","description":"Mercury.","questions":[{"text":"Why are mercury thermometers being phased out, and how should spills be handled?","kind":"provenance"},{"text":"Which entry fits Minamata Convention on Mercury?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"History and weather.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did Galileo s thermoscope lead to thermometers?","kind":"provenance"},{"text":"Which entry fits thermoscope?","kind":"action"}]}]},{"id":"weather","name":"Weather","description":"Weather stations.","findings":[{"id":"weather-finding","name":"Weather","description":"Weather.","questions":[{"text":"How are thermometers used in Stevenson screens?","kind":"provenance"},{"text":"Which entry fits Stevenson screen?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Measure and report temperatures with a calibrated thermometer, stating the unit.","Check a thermometer's calibration against a reference before critical use."],"mustNot":["Break a mercury thermometer or dispose of it as ordinary waste.","Use a non-sterile or shared clinical thermometer between people without cleaning it.","Report readings from an uncalibrated or damaged thermometer as accurate.","Insert a thermometer into a person without consent."],"requiresHuman":["Deciding on medical care for a person based on a temperature reading."]},"ethics":{"considerations":["Wrong readings can delay care for fever or allow unsafe food storage."],"affectedParties":["Patients","Children","People eating stored food"]},"owners":{"steward":"The person or organisation that holds it; metrology institutes maintain calibration standards.","roles":[],"masterSystems":[]},"relations":[{"target":"Q2041172","type":"parent","note":"registry parent class"},{"target":"Q3743695","type":"parent","note":"registry parent class"},{"target":"Q834028","type":"parent","note":"registry parent class"},{"target":"measuring instrument","type":"related","note":"in registry terms"},{"target":"temperature","type":"related"},{"target":"medical thermometer","type":"related"},{"target":"thermostat","type":"related"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.thermometer","Wikidata: Q646 (https://www.wikidata.org/wiki/Q646)"]},"properties":{"applicability":"required","items":["Fahrenheit scale: 1724 year","Celsius scale: 1742 year - later inverted","Six s maximum-minimum thermometer: 1782 year","Minamata Convention: 2013 year - phase-out of mercury thermometers"]},"recognition":{"applicability":"required","items":["Temperature measuring instrument","Tasimeter, candy thermometer, pet thermometer, thermohygrometer, maximum thermometer, minimum thermometer","Thermostats control temperature; thermographs record over time; pyrometers measure high temperatures remotely; hygrometers measure humidity","Glass tubes with liquid columns, digital probes, ear or forehead scanners and dial gauges."]},"capabilities":{"applicability":"required","items":["explain principles and types","relay scales and calibration","describe named instruments","relay mercury and fever safety"]},"hazards":{"applicability":"required","items":["Mercury exposure from broken thermometers","Inaccurate readings from poor technique","Delaying care for infant fever"]},"interfaces":{"applicability":"required","items":["International Temperature Scale of 1990","Minamata Convention on Mercury","Medical device standards for clinical thermometers"]},"context":{"applicability":"required","items":["Measuring temperature.","liquid-in-glass thermometers","digital and thermistor thermometers","infrared thermometers","thermocouple probes","maximum and minimum thermometers","cooking and veterinary thermometers"]}},"sources":[{"title":"Wikidata item Q646: thermometer","url":"https://www.wikidata.org/wiki/Q646","note":"identity and sense of the item"},{"title":"Wikipedia: Thermometer","url":"https://en.wikipedia.org/wiki/Thermometer","note":"general description of the item"}],"openQuestions":["Should the tasimeter be a separate entry?","How should metrology and health sources be linked?","Should clinical thermometers be a separate entry?"],"resources":{"spec":"/models/things/publications/thing-q646/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q646/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T21:18:54Z","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 2026-10-06T19:52:01+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}