(Entity["Compton effect", Entity["FamousPhysicsProblem","ComptonEffect"], "Entity[\"FamousPhysicsProblem\", \"ComptonEffect\"]", "physics problem"])(Entity["fluctuation dissipation theorem", Entity["FamousPhysicsProblem","FluctuationDissipationTheorem"], "Entity[\"FamousPhysicsProblem\", \"FluctuationDissipationTheorem\"]", "physics problem"])(Entity["Joule's second law", Entity["FamousPhysicsProblem","JoulesLaw2"], "Entity[\"FamousPhysicsProblem\", \"JoulesLaw2\"]", "physics problem"])(Entity["strong form of Newton's third law", Entity["FamousPhysicsProblem","NewtonsLaw3Strong"], "Entity[\"FamousPhysicsProblem\", \"NewtonsLaw3Strong\"]", "physics problem"])(Entity["Ohm's law", Entity["FamousPhysicsProblem","OhmsLaw"], "Entity[\"FamousPhysicsProblem\", \"OhmsLaw\"]", "physics problem"])(Entity["Pauli exclusion principle", Entity["FamousPhysicsProblem","PauliExclusionPrinciple"], "Entity[\"FamousPhysicsProblem\", \"PauliExclusionPrinciple\"]", "physics problem"])(Entity["photoelectric effect", Entity["FamousPhysicsProblem","PhotoelectricEffect"], "Entity[\"FamousPhysicsProblem\", \"PhotoelectricEffect\"]", "physics problem"])(Entity["Schrödinger's cat paradox", Entity["FamousPhysicsProblem","SchroedingersCat"], "Entity[\"FamousPhysicsProblem\", \"SchroedingersCat\"]", "physics problem"])(Entity["Titius-Bode law", Entity["FamousPhysicsProblem","TitiusBodeLaw"], "Entity[\"FamousPhysicsProblem\", \"TitiusBodeLaw\"]", "physics problem"])(Entity["twin paradox", Entity["FamousPhysicsProblem","TwinParadox"], "Entity[\"FamousPhysicsProblem\", \"TwinParadox\"]", "physics problem"])…

(EntityClass["physics experiments", EntityClass["FamousPhysicsProblem","Experiment"], "EntityClass[\"FamousPhysicsProblem\", \"Experiment\"]", "physics problems"])(EntityClass["gedankenexperiments", EntityClass["FamousPhysicsProblem","Gedankenexperiment"], "EntityClass[\"FamousPhysicsProblem\", \"Gedankenexperiment\"]", "physics problems"])(EntityClass["Joule's laws", EntityClass["FamousPhysicsProblem","Joule"], "EntityClass[\"FamousPhysicsProblem\", \"Joule\"]", "physics problems"])(EntityClass["Kepler's laws", EntityClass["FamousPhysicsProblem","Kepler"], "EntityClass[\"FamousPhysicsProblem\", \"Kepler\"]", "physics problems"])(EntityClass["physical models", EntityClass["FamousPhysicsProblem","Model"], "EntityClass[\"FamousPhysicsProblem\", \"Model\"]", "physics problems"])(EntityClass["Newton's laws of motion", EntityClass["FamousPhysicsProblem","NewtonLawOfMotion"], "EntityClass[\"FamousPhysicsProblem\", \"NewtonLawOfMotion\"]", "physics problems"])(EntityClass["physical paradoxes", EntityClass["FamousPhysicsProblem","Paradox"], "EntityClass[\"FamousPhysicsProblem\", \"Paradox\"]", "physics problems"])(EntityClass["physical principles", EntityClass["FamousPhysicsProblem","Principle"], "EntityClass[\"FamousPhysicsProblem\", \"Principle\"]", "physics problems"])(EntityClass["physical relations", EntityClass["FamousPhysicsProblem","Relation"], "EntityClass[\"FamousPhysicsProblem\", \"Relation\"]", "physics problems"])(EntityClass["physical theorems", EntityClass["FamousPhysicsProblem","Theorem"], "EntityClass[\"FamousPhysicsProblem\", \"Theorem\"]", "physics problems"])…

(StringTypeLink["FamousPhysicsProblem", paclet:ref/entity/FamousPhysicsProblem]) entities include notable and named results, laws, experiments and principles in physics.

(StringTypeLink["FamousPhysicsProblem", paclet:ref/entity/FamousPhysicsProblem]) entity classes include classifications based on type of result (e.g. "Law", "Model", "Effect") and discovery associated with a particular person (e.g. "Kepler", "NewtonLawOfMotion").

Some properties are available for the (StringTypeLink["FamousPhysicsProblem", paclet:ref/entity/FamousPhysicsProblem]) entity type as a whole and can be given using the form (RefLink[EntityValue, paclet:ref/EntityValue])[(StringTypeLink["FamousPhysicsProblem", paclet:ref/entity/FamousPhysicsProblem]),property]. Such properties include:

The following annotations can be used in the third argument of (RefLink[EntityValue, paclet:ref/EntityValue])[(StringTypeLink["FamousPhysicsProblem", paclet:ref/entity/FamousPhysicsProblem]),property,annotation]:

The following annotations can be used in the second argument of (RefLink[EntityValue, paclet:ref/EntityValue])[property,annotation]:

A qualifier value of (RefLink[Automatic, paclet:ref/Automatic]) indicates that an applicable format of values can be used; e.g. for the "Date" qualifier, this includes a proper date or date span.

OpenersPrimaryExamplesSection(Spacer1)Examples  (4)

OpenersExampleSection0(Spacer1)Basic Examples  (4)

Use (Key1[ctrl, ==]) for entity discovery:

LinguisticAssistant

(Entity["Coulomb's law", Entity["FamousPhysicsProblem","CoulombsLaw"], "Entity[\"FamousPhysicsProblem\", \"CoulombsLaw\"]", "physics problem"])

Find a property value for an entity:

(Entity["Heisenberg uncertainty principle", Entity["FamousPhysicsProblem","HeisenbergUncertaintyPrinciple"], "Entity[\"FamousPhysicsProblem\", \"HeisenbergUncertaintyPrinciple\"]", "physics problem"])["AssociatedEquations"]//Column

Retrieve a dataset of all available properties for an entity:

(Entity["Hooke's law", Entity["FamousPhysicsProblem","HookesLaw"], "Entity[\"FamousPhysicsProblem\", \"HookesLaw\"]", "physics problem"])["Dataset"]

Retrieve Newton's laws of motion:

EntityClass["FamousPhysicsProblem","Classes"->ContainsAll[{"NewtonLawOfMotion"}]]//EntityList

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {Related Entity Types:  (RefLink[FamousChemistryProblem, paclet:ref/entity/FamousChemistryProblem])  ▪  (RefLink[PhysicalSystem, paclet:ref/entity/PhysicalSystem])  ▪  (RefLink[PhysicalConstant, paclet:ref/entity/PhysicalConstant])}})}})

({{DocumentationFooterIconsRelatedGuide.png, ({{Related Guides}, {▪(RefLinkPlain[Entity Types, paclet:guide/EntityTypes])}})}})