PHYSICAL CONSTANTS PACKAGE TUTORIAL

Physical Constants Package

In addition to providing a comprehensive environment for calculations and a programming language, Mathematica is also a system for representing and presenting scientific and technical knowledge. Certain packages are included with Mathematica to provide easy access to commonly used scientific data, such as the value of physical constants and conversion factors for various systems of units.

SpeedOfLight	the speed of light is 299792458 Meter/Second
AvogadroConstant	Avogadro's constant is approximately 6.02214199×10²³Mole^-1
ElectronMass	the mass of an electron is approximately Kilogram
FineStructureConstant	the fine structure constant is approximately
EarthMass	the mass of the earth is approximately Kilogram
AccelerationDueToGravity	the acceleration due to gravity is 9.80665 Meter/Second²

Some common physical constants.

This loads the package.

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This gives the mass of a proton.

In[2]:=

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Here is the distance that light could travel in the age of the universe.

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AccelerationDueToGravity	AgeOfUniverse
AvogadroConstant	BohrRadius
BoltzmannConstant	ClassicalElectronRadius
CosmicBackgroundTemperature	DeuteronMagneticMoment
DeuteronMass	EarthMass
EarthRadius	ElectronCharge
ElectronComptonWavelength	ElectronGFactor
ElectronMagneticMoment	ElectronMass
FaradayConstant	FineStructureConstant
GalacticUnit	GravitationalConstant
HubbleConstant	IcePoint
MagneticFluxQuantum	MolarGasConstant
MolarVolume	MuonGFactor
MuonMagneticMoment	MuonMass
NeutronComptonWavelength	NeutronMagneticMoment
NeutronMass	PlanckConstant
PlanckConstantReduced	PlanckMass
ProtonComptonWavelength	ProtonMagneticMoment
ProtonMass	QuantizedHallConductance
RydbergConstant	SackurTetrodeConstant
SolarConstant	SolarLuminosity
SolarRadius	SolarSchwarzschildRadius
SpeedOfLight	SpeedOfSound
StefanConstant	ThomsonCrossSection
VacuumPermeability	VacuumPermittivity
WeakMixingAngle

Physical constants.