hundredweight
Let an agent explain the hundredweight and its long and short forms, support conversions to pounds, kilograms and tons, describe its historical and current uses, and prevent confusion between the two systems.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Claude
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What a hundredweight is.
Concept
Definition and forms.
Concept
Concept.
- What is a hundredweight, and how do the long and short forms differ? definition
- Which system is meant? boundary
Relations
Relations to other units.
Relations
Relations.
- How does the hundredweight relate to the pound, stone, quarter, ton and kilogram? definition
- Which entry fits the imperial system? action
Convert Conversion.
Convert
Converting.
Convert
Conversion.
- How can this quantity be converted between hundredweights, pounds and kilograms? action
- Which units apply? measurement
Reading
Reading historical figures.
Reading
Reading.
- How should hundredweight figures in historical records and prices be interpreted? action
- Which entry fits historical metrology? action
Use Uses.
Trade
Commodity trade.
Trade
Trade.
- Where is the hundredweight still used in agricultural and commodity markets? provenance
- Is the information current? boundary
Law
Legal status.
Law
Law.
- What is the legal status of the hundredweight for trade in different countries? provenance
- Which entry fits weights and measures law? action
Learn History and teaching.
History
History.
History
History.
- How did the hundredweight arise, and why do the long and short values differ? provenance
- Which references are standard? provenance
Teach
Teaching.
Teach
Teaching.
- How can traditional units be taught alongside metric? action
- Which misconceptions arise? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.QTY
What it is Filled
A unit of mass in the imperial and United States customary systems, equal to one hundred and twelve pounds as the long hundredweight used in the United Kingdom and to one hundred pounds as the short hundredweight used in the United States, abbreviated cwt, historically used for trading commodities such as grain, coal and livestock and still used in some agricultural markets; the hundredweight is one twentieth of the corresponding long or short ton.
Why it exists Filled
Let an agent explain the hundredweight and its long and short forms, support conversions to pounds, kilograms and tons, describe its historical and current uses, and prevent confusion between the two systems.
Distinguishing features Filled
- Two values
- One twentieth of a ton
- Commodity trade use
- Historical
What robots and AI may and may not do Filled
Must not
- Mix long and short hundredweight in one calculation or record.
- Use the hundredweight in trade where law requires metric units.
- Misstate loads to exceed vehicle or lifting limits.
- Assume the British value for a United States document or the reverse.
Only with a human decision
- Using converted weights for lifting, loading or legal trade.
May
- Convert hundredweight to kilograms, stating whether the long or short hundredweight is meant.
- Explain the historical use of the unit in trade.
Moral aspects Filled
- Unit confusion can overload vehicles and lifting gear.
- Honest weights protect buyers and sellers.
Who is affected
- Buyers and sellers
- Drivers and crane operators
- Historians
Owners Filled
Steward
Nobody: a customary unit defined by law in the countries that use it.
Links to other meta-models Filled
parent
- Q3647172 - registry parent class
related
- unit of mass - category
- dry unit - another traditional measurement unit entry
- coal - a commodity traded by the hundredweight
- mark - another historical unit that began as a weight
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.hundredweight
- Wikidata: Q1267081 (https://www.wikidata.org/wiki/Q1267081)
Direct properties not applicable Not applicable
Not applicable
Plane XCT: no invented physical properties.
Recognition optional Filled
- One hundred and twelve or one hundred pounds
- Long hundredweight and short hundredweight
- The quintal is a metric hundred kilograms; the stone is fourteen pounds
- Not physical; a unit.
Capabilities and actions required Filled
- explain long and short forms
- support conversions
- describe uses
- prevent confusion
Hazards and failure modes required Filled
- Confusing long and short hundredweight
- Conversion errors
- Assuming the unit is still legal for trade everywhere
Standards and interfaces required Filled
- Weights and measures legislation
- Commodity market conventions
- Metrication policies
Context of use required Filled
- Imperial and customary mass unit.
- long hundredweight
- short hundredweight
- hundredweight in commodity pricing
- historical hundredweights of other values
- related units such as the quarter and the ton
Sources Missing, in the backlog
Not described yet. This gap is in the card backlog.
Note: Written from model knowledge without web access; claims are unverified.
Open questions
- Should imperial mass units be a single entry?
- How should weights and measures law be linked?
- How should commodity conventions be linked?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1267081/spec.json