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Published

ball

vr.tr.ball · thing-q18545

Let an agent explain kinds of balls and their uses, describe sport-specific standards and materials, support choosing and maintaining balls, and describe history and play.

Thing Registry Physical world and living systems PHY.OBJ
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Understand Kinds of ball.

Kinds

Kinds and uses.

Kinds

Kinds.

  1. What kinds of balls exist for sports, exercise, games and training, and how do they differ? definition
  2. Is the object or the dance event sense of ball meant? boundary

Construction

Materials and construction.

Construction

Construction.

  1. How are balls constructed from leather, rubber, synthetics and foam, and how does this affect play? provenance
  2. Which entry fits a specific ball? action
Choose Choosing and using.

Select

Selecting a ball.

Select

Selection.

  1. Which ball suits this sport, age, surface or exercise, and what sizes and pressures are standard? action
  2. Which safety cautions apply to medicine and exercise balls? provenance

Care

Maintenance.

Care

Maintenance.

  1. How are balls inflated, cleaned and stored to last? action
  2. When should a ball be replaced? definition
Sport Balls in sport.

Standards

Federation standards.

Standards

Standards.

  1. What specifications do federations set for match balls, and how are they tested? provenance
  2. Which entry fits a specific sport? action

Physics

Ball physics.

Physics

Physics.

  1. How do spin, bounce and aerodynamics affect ball flight, according to sports science? provenance
  2. Which entry fits sports physics? action
Learn History and play.

History

History of balls.

History

History.

  1. How have balls been made and played with across cultures and history? provenance
  2. Which references are standard? provenance

Play

Ball play and development.

Play

Play.

  1. How does ball play support motor development in children, according to research? provenance
  2. Which misconceptions arise? provenance

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.OBJ
Other names and narrower kinds
reaction ball, exercise ball, medicine ball, rubber band ball, floorball, iron ball, ball (toy), racquetball, lawn ball, boule lyonnaise ball, wiffle ball, croquet ball

What it is Filled

A round or roughly spherical object used in sports, games, exercise and play, from footballs, basketballs and tennis balls to medicine balls, exercise balls, floorball and reaction balls, and also solid balls such as iron balls and novelty balls such as rubber band balls; balls are made in many sizes and materials, are standardised for each sport, and are among the oldest toys and sports equipment.

Why it exists Filled

Let an agent explain kinds of balls and their uses, describe sport-specific standards and materials, support choosing and maintaining balls, and describe history and play.

Distinguishing features Filled

  • Spherical form
  • Sport standards
  • Materials and construction
  • Play and exercise

What robots and AI may and may not do Filled

Must not

  • Give small balls to young children that could be a choking hazard.
  • Sell or describe counterfeit balls as official.
  • Throw or launch hard balls toward people outside play.

Only with a human decision

  • Choosing equipment for a club or school that must meet safety rules.

May

  • Recommend balls suited to the sport, age and level, following official specifications.
  • Report damaged or unsafe balls in equipment it manages.

Moral aspects Filled

  • Small balls choke children; hard balls injure players and bystanders.

Who is affected

  • Children
  • Players
  • Spectators

Owners Filled

Steward

The person who owns it; sports federations set specifications for official balls.

Links to other meta-models Filled

parent

  • Q112511193 - registry parent class
  • Q11422 - registry parent class
  • Q768186 - registry parent class
  • Q8205328 - registry parent class

related

  • sports equipment - category
  • toy - category
  • spherical body - category
  • volleyball at the Summer Olympics - a ball sport event

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.ball
  • Wikidata: Q18545 (https://www.wikidata.org/wiki/Q18545)

Direct properties required Filled

  • External dimensions: millimetres - Measure the diameter of a spherical ball or the principal dimensions of an irregular ball under a stated inflation condition.
  • Total mass: grams - Measure with a balance because mass varies substantially with sport, size and construction.
  • Internal gauge pressure: kilopascals - Measure inflatable balls with a suitable pressure gauge, while this property does not apply to solid balls.
  • Rebound height: centimetres - Measure the rebound after a specified drop onto a defined surface while recording temperature and inflation condition.

Recognition required Filled

  • Round object for play or sport
  • Sport-specific sizes and materials
  • A formal ball as a dance event is another sense
  • A spherical or ovoid object of varied size and material.

Capabilities and actions required Filled

  • explain kinds of ball
  • describe standards and materials
  • support choosing and maintaining
  • describe history and play

Hazards and failure modes required Filled

  • Injury from hard or heavy balls
  • Choking hazards from small balls
  • Counterfeit or substandard balls

Standards and interfaces required Filled

  • Sport federation ball specifications
  • Toy safety standards
  • Manufacturing and labour standards for ball production

Context of use required Filled

  • Round objects for sport and play.
  • sports balls such as football, basketball and tennis balls
  • exercise and medicine balls
  • game and toy balls
  • training balls such as reaction balls
  • solid and novelty balls

Sources Filled

  1. Wikidata item Q18545: ball - identity and sense of the item
  2. Wikipedia: Ball - general description of the item

Open questions

  • Should each sport ball be a separate entry?
  • How should federation specifications be linked?
  • How should the dance sense be split?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q18545/spec.json