Property talk:P2077
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under pressure
qualifier to indicate at what pressure something took place
qualifier to indicate at what pressure something took place
Represents | pressure (Q39552) | |||||||||
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Data type | Quantity | |||||||||
Template parameter | used in chembox | |||||||||
Domain | chemistry, physic (note: this should be moved to the property statements) | |||||||||
Allowed units | pascal (Q44395), kilopascal (Q21064807), bar (Q103510), standard atmosphere (Q177974), millimetre of mercury (Q6859652), newton per square metre (Q39469927), megapascal (Q21062777), pound per square inch (Q626299), hectopascal (Q5139563) or millibar (Q3495543) | |||||||||
Example | According to this template:
sound speed = xx m/s at yy °C and zz bar
According to statements in the property:
When possible, data should only be stored as statementsspeed of sound (Q124003) → 1 standard atmosphere Sun (Q525) → 265,000,000 kilobar | |||||||||
Tracking: usage | Category:Pages using Wikidata property P2077 (Q117007335) | |||||||||
Lists | ||||||||||
Proposal discussion | Proposal discussion | |||||||||
Current uses |
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[create Create a translatable help page (preferably in English) for this property to be included here]
Units: “pascal (Q44395), kilopascal (Q21064807), bar (Q103510), standard atmosphere (Q177974), millimetre of mercury (Q6859652), newton per square metre (Q39469927), megapascal (Q21062777), pound per square inch (Q626299), hectopascal (Q5139563), millibar (Q3495543)”: value unit must be one of listed. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P2077#Units
Scope is as qualifier (Q54828449): the property must be used by specified way only (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P2077#Scope, SPARQL
Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P2077#Entity types
This property is being used by: Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.) |
scope
[edit]This property was created for measurements, but could it also be used for specifications? For example, diving watches that are rated up to a certain water depth = a certain pressure. If so, how would one model that? Arlo Barnes (talk) 20:33, 29 June 2021 (UTC)
- I don't think that there is any such item right now (no subclasses of diving watch (Q678894)), but (1) this is a qualifier, so there should be some statement that can be qualified with it first (like has characteristic (P1552)water resistant (Qxxx)
under pressure (P2077)x atm), (2) as a stand-alone property, I think you're looking for something like 'maximum pressure' that would be descriptive enough not to worry about how to model it. Wostr (talk) 21:07, 29 June 2021 (UTC)