dimensionless unit
101Euclidean vector — This article is about the vectors mainly used in physics and engineering to represent directed quantities. For mathematical vectors in general, see Vector (mathematics and physics). For other uses, see vector. Illustration of a vector …
102Statcoulomb — The statcoulomb (statC) or franklin (Fr) or electrostatic unit of charge (esu) is the physical unit for electrical charge used in the centimetre gram second (cgs) electrostatic system of units. The SI system of units uses the coulomb (C) instead …
103Magnetic susceptibility — In electromagnetism, the magnetic susceptibility χm (latin: susceptibilis “receptiveness”) is a dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an applied magnetic field. A related… …
104Young's modulus — In solid mechanics, Young s modulus (E) is a measure of the stiffness of an isotropic elastic material. It is also known as the Young modulus, modulus of elasticity, elastic modulus (though Young s modulus is actually one of several elastic… …
105Coefficient of variation — In probability theory and statistics, the coefficient of variation (CV) is a normalized measure of dispersion of a probability distribution. It is also known as unitized risk or the variation coefficient. The absolute value of the CV is sometimes …
106Emergy — The term Emergy was originally coined by David M. Scienceman in collaboration with the late Howard T. Odum. H.T.Odum used emergy to mean both sequestered energy and emergent property of energy use [ H.T.Odum, 1988,… …
107Insect wing — Original veins and wing posture of a dragonfly. Hoverflies hovering to mate …
108Specific speed — Pump Specific Speed is an index that, in mechanical terms, represents the impeller speed of a pump necessary to generate 1 gallon per minute at 1 foot of head.Ns = (n*sqrt(Q)) / (gH^(3/4))Ns = specific speed (unitless)n = pump rotational speed in …
109Gas — This article is about the physical properties of gas as a state of matter. For the uses of gases, and other meanings, see Gas (disambiguation). Ga …
110Mason–Weaver equation — The Mason–Weaver equation (named after Max Mason and Warren Weaver) describes the sedimentation and diffusion of solutes under a uniform force, usually a gravitational field.[1] Assuming that the gravitational field is aligned in the z direction… …
