In 1946, Conférence Générale des Poids et Mesures (CGPM) resolution 2 standardized the unit of force in the MKS system of units to be the amount needed to accelerate 1 kilogram of mass at the rate ...
The most primitive method of representing a natural number is to put down a dot for each object. Later, a set of objects could be tested for equality, excess or shortage, by striking out a dot for eac ...
The Avogadro constant is named after the early 19th century Italian scientist Amedeo Avogadro, who in 1811 first proposed that the volume of a gas (at a given pressure and temperature) is proportional ...
Magnetization can be defined according to the following equation:\mathbf{M}=\frac{N}{V}\mathbf{m}=n\mathbf{m}Here, M represents magnetization; m is the vector that defines the magnetic moment; V repre ...
A litre is defined as a special name for a cubic decimetre or 10 centimetres × 10 centimetres × 10 centimetres, (1 L ≡ 1 dm3 ≡ 1000 cm3). Hence 1 L ≡ 0.001 m3 ≡ 1000 cm3, and 1 m3 (i.e. a cubic ...
In classical mechanics, the natural form of the Lagrangian is defined as the kinetic energy, T, of the system minus its potential energy, V. In symbols,L = T - V.If the Lagrangian of a system is known ...
Inductance (L) results from the magnetic field around a current-carrying conductor; the electric current through the conductor creates a magnetic flux. Mathematically speaking, inductance is determine ...
Given a Riemannian manifold and two linearly independent tangent vectors at the same point, u and v, we can defineK(u,v)={\langle R(u,v)v,u\rangle\over \langle u,u\rangle\langle v,v\rangle-\langle u,v ...
In 1848 Lord Kelvin (William Thomson), wrote in his paper, On an Absolute Thermometric Scale, of the need for a scale whereby "infinite cold" (absolute zero) was the scale's null point, and which used ...
This SI unit is named after James Prescott Joule. As with every International System of Units (SI) unit whose name is derived from the proper name of a person, the first letter of its symbol is upper ...
Bessel's equation arises when finding separable solutions to Laplace's equation and the Helmholtz equation in cylindrical or spherical coordinates. Bessel functions are therefore especially important ...
The angular momentum, L, of a particle about a given origin is defined as:\mathbf{L}=\mathbf{r}\times\mathbf{p}where r is the position vector of the particle relative to the origin, p is the linear mo ...
When a body is rotating around an axis, a torque must be applied to change its angular momentum. The amount of torque needed for any given change in angular momentum is proportional to the size of tha ...
Luminous intensity should not be confused with another photometric unit, luminous flux, which is the total perceived power emitted in all directions. Luminous intensity is the perceived power per unit ...
Impulse J produced from time t1 to t2 is defined to be\mathbf{J} = \int_{t_1}^{t_2} \mathbf{F}\, dtwhere F is the resultant force applied from t1 to t2.From Newton's second law, force is related to mo ...
