Pascal's law
E144288
Pascal's law is a fundamental principle of fluid mechanics stating that pressure applied to an enclosed fluid is transmitted undiminished in all directions throughout the fluid and to the walls of its container.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pascal's law canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T1261916 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pascal's law Context triple: [Blaise Pascal, notableIdea, Pascal's law]
-
A.
Boyle's law
Boyle's law is a fundamental gas law in physics and chemistry stating that the pressure of a fixed amount of gas is inversely proportional to its volume at constant temperature.
-
B.
Babinet's principle
Babinet's principle is a fundamental concept in wave optics stating that the diffraction pattern from an opaque object is identical to that from a complementary aperture of the same shape, apart from the overall intensity.
-
C.
Hooke's law
Hooke's law is a fundamental principle of physics that states the force needed to extend or compress a spring is directly proportional to the displacement, within the elastic limit of the material.
-
D.
Snell’s law of refraction
Snell’s law of refraction is a fundamental principle in optics that relates the angles of incidence and refraction to the refractive indices of two media, governing how light bends when passing between them.
-
E.
Bernoulli
Bernoulli is the surname of a prominent Swiss family of mathematicians and scientists, including figures such as Jakob, Johann, and Daniel Bernoulli, who made foundational contributions to calculus, probability, and fluid dynamics.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pascal's law Target entity description: Pascal's law is a fundamental principle of fluid mechanics stating that pressure applied to an enclosed fluid is transmitted undiminished in all directions throughout the fluid and to the walls of its container.
-
A.
Boyle's law
Boyle's law is a fundamental gas law in physics and chemistry stating that the pressure of a fixed amount of gas is inversely proportional to its volume at constant temperature.
-
B.
Babinet's principle
Babinet's principle is a fundamental concept in wave optics stating that the diffraction pattern from an opaque object is identical to that from a complementary aperture of the same shape, apart from the overall intensity.
-
C.
Hooke's law
Hooke's law is a fundamental principle of physics that states the force needed to extend or compress a spring is directly proportional to the displacement, within the elastic limit of the material.
-
D.
Snell’s law of refraction
Snell’s law of refraction is a fundamental principle in optics that relates the angles of incidence and refraction to the refractive indices of two media, governing how light bends when passing between them.
-
E.
Bernoulli
Bernoulli is the surname of a prominent Swiss family of mathematicians and scientists, including figures such as Jakob, Johann, and Daniel Bernoulli, who made foundational contributions to calculus, probability, and fluid dynamics.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
physical law
ⓘ
principle of fluid mechanics ⓘ |
| appliesTo |
enclosed fluids
ⓘ
incompressible fluids ⓘ |
| assumes |
fluid at rest
ⓘ
negligible effects of gravity over small vertical distances ⓘ no shear stresses in the fluid ⓘ |
| category |
laws of fluid statics
ⓘ
laws of physics ⓘ |
| consequence |
pressure in a connected fluid is the same at the same depth
ⓘ
small force applied to a small area can produce a large force on a larger area ⓘ |
| contrastsWith | behavior of gases at high compressibility ⓘ |
| coreIdea | isotropic transmission of pressure in a fluid ⓘ |
| describes | how applied pressure propagates in a confined fluid ⓘ |
| field |
fluid mechanics
ⓘ
hydrostatics ⓘ |
| foundationFor |
design of fluid power systems
ⓘ
hydraulic engineering ⓘ pneumatic system design ⓘ |
| hasDimension | pressure dimension M L^-1 T^-2 ⓘ |
| hasUnitForPressure |
Pascal
ⓘ
surface form:
pascal
|
| historicalPeriod | 17th century ⓘ |
| implies |
external pressure applied to a confined fluid increases the pressure uniformly throughout the fluid
ⓘ
pressure at a point in a static fluid is the same in all directions ⓘ |
| mathematicalForm | P = F / A ⓘ |
| namedAfter | Blaise Pascal ⓘ |
| relatedTo |
Archimedes' principle
ⓘ
Pascal (unit) ⓘ Archimedes' principle ⓘ
surface form:
Stevin's law
hydrostatic pressure ⓘ |
| relatesQuantity |
area
ⓘ
force ⓘ pressure ⓘ |
| states |
pressure applied to an enclosed fluid is transmitted to every part of the fluid and to the walls of its container
ⓘ
pressure applied to an enclosed fluid is transmitted undiminished in all directions ⓘ |
| taughtIn |
engineering mechanics courses
ⓘ
introductory physics courses ⓘ |
| usedFor |
calculation of pressure distribution in static fluids
ⓘ
design of pressure-based machinery ⓘ force multiplication ⓘ |
| usedIn |
hydraulic brakes
ⓘ
hydraulic jacks ⓘ hydraulic lifts ⓘ hydraulic presses ⓘ hydraulic systems ⓘ hydraulic transmission of force ⓘ |
| validWhen |
fluid is continuous and not cavitating
ⓘ
temperature variations are negligible for pressure transmission ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Pascal's law Description of subject: Pascal's law is a fundamental principle of fluid mechanics stating that pressure applied to an enclosed fluid is transmitted undiminished in all directions throughout the fluid and to the walls of its container.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.