etomica.util
Class Constants

java.lang.Object
  etomica.util.Constants

public final class Constants
extends Object

Collection of assorted physical constants. All values are in simulations units in which time is in picoseconds, length is in Angstroms, and mass is in Daltons (amu). Also defines several enumerated-type constants.

Nested Class Summary

static class	Constants.Alignment Enumerated type for specifying HORIZONTAL/VERTICAL alignment.
static class	Constants.CompassDirection Enumerated type for the compass directions NORTH, SOUTH, EAST, WEST.
static class	Constants.Direction Enumerated type for the directions TOP, BOTTOM, LEFT, RIGHT, FRONT, BACK.

Field Summary

static double	AVOGADRO Avogadro's number, 6.0221415e23 molecules/mole.
static double	BOLTZMANN_K Boltzmann's constant, in (sim units)/kelvin.
static double	EPSILON_0 The permittivity of a vacuum, in (sim units) (electron charge)^2.
static double	G The gravitational constant, in simulation units.
static double	G_EARTH The standard acceleration of gravity on Earth.
static double	LIGHT_SPEED The speed of light, in simulation units.
static double	PLANCK_H Planck's constant, in simulation units.
static double	TWO_PI

Method Summary

static void

main(String[] arg)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TWO_PI

public static final double TWO_PI

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Constant Field Values

AVOGADRO

public static final double AVOGADRO

Avogadro's number, 6.0221415e23 molecules/mole.

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Constant Field Values

G_EARTH

public static final double G_EARTH

The standard acceleration of gravity on Earth.

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Constant Field Values

BOLTZMANN_K

public static final double BOLTZMANN_K

Boltzmann's constant, in (sim units)/kelvin. Specifically, equal to 0.8314517839107 (daltons)(angstroms^2)(ps^-2)(kelvin^-1).

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Constant Field Values

PLANCK_H

public static final double PLANCK_H

Planck's constant, in simulation units. Specifically, equal to approximately 39.903127 D-A^2/ps.

EPSILON_0

public static final double EPSILON_0

The permittivity of a vacuum, in (sim units) (electron charge)^2. Specifically, equal to 5.7276575390366254E-7 (ps^2)(daltons^-1)(angstroms^-3)(electrons^2).

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Constant Field Values

LIGHT_SPEED

public static final double LIGHT_SPEED

The speed of light, in simulation units. Equal to 2997924.58 Angstroms/picosecond

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Constant Field Values

G

public static final double G

The gravitational constant, in simulation units. Equal to approximately 1.1e-31 A^3/ps^2/D.

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Constant Field Values

Method Detail

main

public static void main(String[] arg)