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Unlike, say, Lebesgue measure, which measures a set's volume or physical extent, capacity is a mathematical analogue of a set's ability to hold electrical charge. More precisely, it is the capacitance of the set: the total charge a set can hold while maintaining a given potential energy .
G is quite difficult to measure because gravity is much weaker than other fundamental forces, and an experimental apparatus cannot be separated from the gravitational influence of other bodies. Measurements with pendulums were made by Francesco Carlini (1821, 4.39 g/cm 3 ), Edward Sabine (1827, 4.77 g/cm 3 ), Carlo Ignazio Giulio (1841, 4.95 g ...
Big G may refer to: the letter G; Big Gemini, an advanced version of the Gemini program spacecraft system; Gravitational constant, a physical constant involved in the calculation of gravitational effects; a slang term for "Big Gangster" often used as a general expression of respect for a person
Normalizing 4 π G to 1 (and therefore setting G = 1 / 4 π ): Gauss's law for gravity becomes Φ g = −M (rather than Φ g = −4 π M in Planck units). Eliminates 4 π G from the Poisson equation. Eliminates 4 π G in the gravitoelectromagnetic (GEM) equations, which hold in weak gravitational fields or locally flat spacetime.
1. Inner semidirect product: if N and H are subgroups of a group G, such that N is a normal subgroup of G, then = and = mean that G is the semidirect product of N and H, that is, that every element of G can be uniquely decomposed as the product of an element of N and an element of H.
It may be that all English-unit derived capacity measurements are derived from one original approximate measurement: the mouthful, consisting of about 1 ⁄ 2 ounce, called the ro in ancient Egypt (their smallest recognized unit of capacity). [4] [5] The mouthful was still a unit of liquid measure during Elizabethan times. [6]
Computational mathematics is the study of mathematical problems that are typically too large for human, numerical capacity. [ 63 ] [ 64 ] Numerical analysis studies methods for problems in analysis using functional analysis and approximation theory ; numerical analysis broadly includes the study of approximation and discretization with special ...
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. ... G: 10 9: 1 000 000 000: mega: M: 10 6: 1 ...