- All Implemented Interfaces:
public final class SI
- extends Object
- implements Serializable
A class that represents the SI system of units.
- Steven R. Emmerson
This is part of Steve Emerson's Unit package that has been
incorporated into VisAD.
- See Also:
- Serialized Form
Test this class.
|Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public static BaseUnit ampere
- Base unit of electric current.
The ampere is that constant current which, if maintained
in two straight parallel conductors of infinite length,
of negligible circular cross section, and placed 1 meter
apart in vacuum, would produce between these conductors a
force equal to 2 x 10^-7 newton per meter of length.
public static BaseUnit candela
- Base unit of luminous intensity.
The candela is the luminous intensity, in a given
direction, of a source that emits monochromatic
radiation of frequency 540 x 10^12 hertz and that has a
radiant intensity in that direction of (1/683) watt per
public static BaseUnit kelvin
- Base unit of thermodynamic temperature.
The kelvin, unit of thermodynamic temperature, is the
fraction 1/273.16 of the thermodynamic temperature of the
triple point of water.
public static BaseUnit kilogram
- Base unit of mass.
The kilogram is the unit of mass; it is equal to the mass
of the international prototype of the kilogram.
public static BaseUnit meter
- Base unit of length.
The meter is the length of the path travelled by light
in vacuum during a time interval of 1/299 792 458 of a
public static BaseUnit second
- Base unit of time.
The second is the duration of 9 192 631 770 periods of
the radiation corresponding to the trasition between
the two hyperfine levels of the ground state of the
public static BaseUnit mole
- Base unit of amount of substance.
The mole is the amount of substance of a system which
contains as many elementary entities as there are atoms
in 0.012 kilogram of carbon 12.
public static BaseUnit radian
- Base unit of angular measure.
The radian is the plane angle between two radii of a
circle that cut off on the circumference an arc equal in
length to the radius. This unit is dimensionless.
public static BaseUnit steradian
- Base unit of solid angle.
The steradian is the solid angle that, having its vertex
in the center of a sphere, cuts off an area of the surface
equal to that of a square with sides of length equal to the
radius of the sphere. This unit is dimensionless.
public static void main(String args)
- Test this class.
args - Arguments (ignored).