gravity gun
Enable an agent to recognise a fictional gravity gun, distinguish its depicted capabilities from its playable implementation, and determine which interactions a particular version permits.
Bundle → Layer → Finding → Questions Filled
5 bundles · 9 layers · 13 findings · 21 questions
Fictional device identity Establishes which gravity-gun concept the entry represents and how its depictions relate.
Name and referent
Resolves the label against its fictional context.
Gravity-gun identity anchor
Record the evidence connecting the registry term to a fictional device, keeping informal labels distinct from source-established names.
- Does this registry entry denote a specific franchise's device or a class of fictional gravity-manipulation weapons? boundary
- Which source establishes the device's name and the work or continuity in which it appears? provenance
Design and depiction
Distinguishes a fictional design from its instances and representations.
Identity across depictions
Relate individual appearances, adaptations and implementations without assuming that a shared appearance guarantees shared capabilities.
- Which depicted devices are instances of the same design, and which are adaptations or unrelated namesakes? boundary
- What evidence supports carrying a capability from one appearance into another? provenance
Force and target coupling Captures how the device is said to act on objects and which objects it can affect.
Attributed force
Separates fictional explanation from demonstrated manipulation.
Mechanism versus effect
Record claims about gravity separately from demonstrated attraction, suspension or repulsion.
- Does the source explicitly attribute the device's operation to gravity, or is that interpretation inferred from its name and effects? definition
- Which effects are demonstrated, and which exist only in dialogue, descriptive text or promotional material? provenance
Eligible targets
Defines operation-specific coupling to environmental objects and other entities.
Target selection rules
Record eligibility separately for attraction, holding and propulsion, including anchored objects and living targets where relevant.
- Which target properties permit or prevent each operation, and are the restrictions explained in fiction or imposed by the implementation? boundary
- Can a target be repelled without being holdable, and what observed cases establish that distinction? provenance
Object manipulation cycle Models the sequence from selecting an object to holding, releasing or launching it.
Acquisition and holding
Describes how an eligible target enters and remains under control.
Controlled object state
Record acquisition conditions, held position and the events that interrupt control.
- What aim, distance, visibility and availability conditions must hold before the device acquires a target? action
- How are holding distance, target orientation and loss of control determined when the operator moves or an obstruction intervenes? measurement
Release and propulsion
Distinguishes ending control from actively imparting motion.
Release versus launch
Represent dropping, throwing and repelling as separate operations when the depiction supports them.
- Which actions simply end suspension, and which actively propel a held or unheld target? definition
- What evidence establishes launch direction, speed or impulse, and how do these depend on the target or device mode? measurement
Capability limits and consequences Relates operational restrictions and changing modes to environmental outcomes.
Limits and mode changes
Captures capacity, readiness and conditional changes to the interaction rules.
Mode-dependent capability
Record only evidenced resource constraints and capability modifiers, with their activation and expiry conditions.
- What mass, size, range, simultaneous-target or timing limits are established for each operation? measurement
- If an enhanced or restricted state exists, what triggers it and exactly which target or operation rules change? action
Environmental outcomes
Connects manipulation to collisions, object changes and task outcomes.
Manipulated-object consequences
Distinguish effects caused directly by the device from effects caused by a moving object's collision or intrinsic properties.
- Does an observed impact result from a direct device effect, a propelled object's collision or a property such as the object's explosiveness? boundary
- Which evidenced manipulation sequences can clear an obstruction, place a puzzle object or provide a temporary barrier in this implementation? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of gravity gun this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these kinds and varieties hold for the sense of gravity gun this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of gravity gun this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of gravity gun this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of gravity gun this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Information and virtual systems
- Entry kind
- thing
- Plane
- INF
- Domain
- INF.MED
What it is Filled
A gravity gun is a fictional device that manipulates objects at a distance through purported control of gravity, notably represented by the Zero Point Energy Field Manipulator in Valve's Half-Life 2.
In scope
- The fictional device's identity and names within an identified work or continuity
- Depicted gravity or force manipulation and the distinction between fictional explanation and implemented behaviour
- Acquiring, holding, moving, releasing and propelling eligible targets
- Restrictions, exceptional capability states and interactions with the environment
- Evidence linking each capability to a particular depiction or implementation
Out of scope
- Real gravitational physics and engineering feasibility
- Complete models of the games, films or other works containing the device
- General firearm mechanics unrelated to gravity-based manipulation
- The identities and full capabilities of characters operating the device
- Physical merchandise, replicas and individual collectible items
- Complete models of manipulated objects and their material properties
Why it exists Filled
Enable an agent to recognise a fictional gravity gun, distinguish its depicted capabilities from its playable implementation, and determine which interactions a particular version permits.
Distinguishing features Filled
- A qualifying depiction presents a device whose attributed function includes manipulating targets through gravity or a related fictional force; the name alone is insufficient evidence.
- Determine whether the device manipulates existing environmental objects, emits its own projectiles, or does both; these behaviours distinguish materially different gravity-gun interpretations.
- Identify an external implement or explicitly represented device, distinguishing it from an operator's unaided telekinetic ability.
- Test whether apparent lifting or attraction is attributed to this device rather than ordinary magnetism, a grappling tether or an unrelated editing tool.
- Require a work, continuity or implementation reference before treating two similarly named devices as the same fictional design.
What robots and AI may and may not do Filled
Must not
- Present the device as real or buildable.
- Distribute game content in breach of copyright.
- Market products as real gravity guns to deceive buyers.
Only with a human decision
- Publishing fan works that use protected game assets.
May
- Describe the gravity gun as a fictional device and its role in games and media.
- Distinguish fictional gravity manipulation from real physics.
Moral aspects Filled
- Fiction about science shapes public understanding of physics.
- Creators' rights in game designs deserve respect.
Who is affected
- Players and fans
- Game creators
Owners Filled
Steward
The rights holder of the game in which it appears.
Links to other meta-models Filled
parent
- Q124980912 - registry parent class
- Q15720870 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.gravity-gun
- Wikidata: Q379481 (https://www.wikidata.org/wiki/Q379481)
Direct properties not applicable Not applicable
- Fictional identity anchor: Depicting work, continuity, named design and supporting reference
- Attributed operating mechanism: Gravity manipulation; other fictional force; explicitly unexplained; unresolved
- Supported manipulation operations: Acquire; attract; hold; reposition; release; repel; launch; other evidenced operation
- Target eligibility: Operation-specific rules over target type, mobility, attachment, living status and explicit exceptions
- Effective interaction distance: Distance per operation in documented world units or metres where a justified conversion exists; otherwise unknown
- Manipulation capacity: Documented mass, size or target-count limits with units and version context; otherwise unknown
- Operational mode: Source-defined mode, readiness, held-target condition and temporary capability modifiers
- Capability evidence context: Claim linked to a scene, passage, official description or reproducible implementation observation
Plane INF: no invented physical properties.
Recognition optional Filled
- In its best-known game, a bulky handheld device with prongs at the front that lifts and launches objects.
Capabilities and actions required Filled
- Identify the relevant fictional design and version from a name, depiction or observed interaction.
- Check whether a specified target supports acquisition, holding or propulsion under the current rules.
- Plan a permitted sequence for moving an object, clearing a route or interacting with a puzzle.
- Assess depicted or simulated consequences of releasing or launching a held object.
- Compare capability changes across modes, adaptations and implementations.
- Flag unsupported capability claims and record unresolved exceptions.
Hazards and failure modes required Filled
- Confusion between fiction and real physics.
- Fraudulent products sold as real devices.
Standards and interfaces not applicable Not applicable
Not applicable
No technical standard or official classification specifically governs the capabilities of this fictional device category.
Context of use required Filled
- A gravity gun appears in fictional game worlds as a device for manipulating objects at a distance.
- Its gameplay uses can include moving obstacles, solving spatial puzzles and interacting with opponents.
- Permitted targets, reach and object behavior depend on the particular game's implementation.
Sources Filled
- Wikidata item Q379481: gravity gun - identity and sense of the item
- Wikipedia: Gravity Gun - general description of the item
Open questions
- Does vr.tr.gravity-gun specifically identify the Half-Life device, another named fictional device or the general fictional category?
- Which primary depictions and implementation versions should establish the initial capability baseline?
- Which apparent physical limits are documented rules, reproducible observations or scene-specific exceptions?
- Are changes in target eligibility separate device designs, temporary modes or differences between adaptations?
- Does an existing Vercy world model already cover the resolved concept and therefore provide the authoritative model to link?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q379481/spec.json