domain/universal library
Quantity types and constants with universal application.
Classes
 AngularMomentum
 A measure of the quantity of rotation of a system of matter, taking into account its mass, rotations, motions and shape. See the Wikipedia entry for Angular momentum for more information.
 Length
 Represents the length physical quantity (one of the seven base SI quantities). See the Wikipedia entry for Length for more information.
 Mass
 Represents the mass physical quantity (one of the seven base SI quantities), that determines the strength of a body's mutual gravitational attraction to other bodies. See the Wikipedia entry for Mass for more information.
 MiscQuantity
 A MiscQuantity is a general (miscellaneous) Quantity having arbitrary dimensions (including possibly the same dimensions as a named Quantity subclass). MiscQuantity objects may be used, for example, in less common domains or as intermediate results in equations.
 Permeability
 The ability of a material to support the formation of a magnetic field within itself. See the Wikipedia entry for Permeability (electromagnetism) for more information.
 Permittivity
 The resistance that is encountered when forming an electric field in a medium. See the Wikipedia entry for Permittivity for more information.
 Resistance
 A measure of the difficulty passing an electric current through a conductor. See the Wikipedia entry for Electrical resistance and conductance for more information.
 Speed
 The rate of change of position. See the Wikipedia entry for Speed for more information.
 Temperature
 An objective comparative measure of hot or cold. See the Wikipedia entry for Thermodynamic temperature for more information.
 Time
 Represents the time interval physical quantity (one of the seven base SI quantities).
 WaveNumber
 The spatial frequency of a wave. See the Wikipedia entry for Wavenumber for more information.
Constants
 c → const Speed
 The symbol for the speed of light constant.
 c0 → const Speed
 An alternative symbol for the speed of light constant.
 characteristicImpedanceOfVacuum → const Resistance
 Relates the magnitudes of the electric and magnetic fields of electromagnetic radiation travelling through free space.
 G → const MiscQuantity
 The symbol for the Newtonian constant of gravitation.
 h → const AngularMomentum
 The symbol for the Planck constant.
 hBar → const AngularMomentum
 The Planck constant divided by 2 PI (a.k.a., 'hbar' or 'reduced Planck constant').
 newtonianConstantOfGravitation → const MiscQuantity
 An empirical physical constant involved in the calculation of gravitational effects.
 planckConstant → const AngularMomentum
 The Planck constant.
 planckLength → const Length
 The threshold length at which classical ideas about gravity and spacetime cease to be valid and quantum effects dominate.
 planckMass → const Mass
 The unit of mass in the system of natural units known as Planck units. It is approximately 0.02 milligrams.
 planckTemperature → const Temperature
 Contemporary models of physical cosmology postulate that the highest possible temperature is the Planck temperature.
 planckTime → const Time
 The time required for light to travel in a vacuum a distance of one Planck length.
 rydberg → const WaveNumber
 Appears in the Balmer formula for spectral lines of the hydrogen atom. For a hydrogen atom, the effective mass must be taken as the reduced mass of the proton and electron. In MKS, this gives the Rydberg constant.
 speedOfLightVacuum → const Speed
 Speed of light in a vacuum.
 vacuumElectricPermittivity → const Permittivity
 A constant of proportionality that exists between electric displacement and electric field intensity.
 vacuumMagneticPermeability → const Permeability
 The magnetic permeability in a classical vacuum.
Properties
 eps0 ↔ Permittivity

The symbol for the electric constant.
getter/setter pair
 mu0 ↔ Permeability

The symbol for the magnetic constant.
getter/setter pair
 Z0 ↔ Resistance

The symbol for the characteristic impedance of vacuum.
getter/setter pair