Published
propagation
vr.tr.propagation · thing-propagation
Let an agent handle wave propagation by wave type, medium, speed, losses and applications, and separate plant propagation and other senses.
Thing Registry Physical world and living systems PHY.FLW
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
Wave Which wave.
Type
Wave type.
Type
Wave type.
- Which kind of wave is propagating? definition
- Through which medium? definition
Speed
Propagation speed.
Speed
Propagation speed.
- How fast does it travel in this medium? measurement
- What affects the speed? definition
Losses Attenuation.
Attenuation
Loss.
Attenuation
Attenuation.
- How much does the signal weaken over this distance? measurement
- Which model estimates it? provenance
Obstacles
Reflection and diffraction.
Obstacles
Obstacles.
- How do buildings or terrain affect propagation? definition
- Is there multipath? boundary
Applications Uses.
Radio
Coverage.
Radio
Radio coverage.
- What range can this radio link achieve? measurement
- Which ITU model applies? provenance
Seismic
Earthquakes.
Seismic
Seismic waves.
- How do seismic waves propagate through the Earth? definition
- How is this used in early warning? provenance
Senses Disambiguation.
Plants
Plant propagation.
Plants
Plant propagation.
- Is propagating plants from cuttings or seed meant? boundary
- Which entry fits? action
Redshift
Cosmology.
Redshift
Redshift.
- How does redshift arise as light propagates through expanding space? definition
- Which sources explain it? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- noun.phenomenon
- Plane
- PHY
- Domain
- PHY.FLW
- Facets: substance
- energy
- Facets: origin
- natural
- Facets: agency
- inert
- Facets: mobility
- not-applicable
- Facets: scale
- not-applicable
- Facets: affordances
- observable
- Other names and narrower kinds
- red shift, redshift, wave front
What it is Filled
The movement of a wave through a medium or space, such as light, sound, radio or seismic waves, involving phenomena such as attenuation, reflection, refraction, diffraction and redshift; wave fronts describe surfaces of equal phase.
Why it exists Filled
Let an agent handle wave propagation by wave type, medium, speed, losses and applications, and separate plant propagation and other senses.
Distinguishing features Filled
- Wave movement
- Depends on medium
- Involves losses and scattering
- Basis of many technologies
What robots and AI may and may not do Filled
Must not
- Use propagation models to plan jamming or interference with others' communications.
- Overstate coverage or signal reach in a way that misleads users relying on it for safety.
- Present propagation claims as evidence of health harm or safety without scientific support.
Only with a human decision
- Siting transmitters or warning systems that people will rely on in emergencies.
May
- Explain how waves propagate and attenuate, citing standard physics sources.
- Model radio or seismic propagation for planning on behalf of an authorized operator.
Moral aspects Filled
- Emergency warnings and communications depend on accurate coverage predictions.
- Fears about wave propagation are often exploited by misinformation.
Who is affected
- People relying on communications
- Communities near transmitters
- Network operators
Owners Filled
Steward
Nobody owns a physical phenomenon; spectrum regulators license its use.
Links to other meta-models Filled
parent
- oewn-11439518-n - registry parent class
related
- wave phenomenon - category
- reflection and refraction - processes
- redshift - effect
- plant propagation - another sense
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.propagation
- Open English WordNet: oewn-11533425-n
Direct properties required Filled
- Phase velocity: m/s - Measure the speed of a constant-phase point for a specified wave type, frequency and medium.
- Wavelength: m - Measure the distance between successive points of equal phase along the direction of propagation.
- Attenuation per unit distance: dB/m - Measure the reduction in wave level over a known distance with frequency, medium and geometric spreading specified.
Recognition required Filled
- Wave fronts and rays
- Attenuation with distance
- Plant propagation is a different sense
- Not visible directly; seen in ripples, echoes and signal coverage.
Capabilities and actions required Filled
- explain propagation speed and losses
- estimate signal ranges
- relate propagation to redshift and cosmology
- separate other senses of propagation
Hazards and failure modes required Filled
- Overestimating signal range
- Confusing senses
Standards and interfaces required Filled
- ITU-R propagation recommendations
Context of use required Filled
- Understanding communication, sensing, acoustics and astronomy.
- electromagnetic propagation
- acoustic propagation
- seismic propagation
- radio propagation
- cosmological redshift
Sources Filled
- Open English WordNet 2024, synset oewn-11533425-n - sense and gloss of the concept
- Wiktionary: propagation - word senses and usage
Open questions
- Should wave types be separate entries?
- How should ITU models be linked?
- How should other senses be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-propagation/spec.json