The area is the two-dimensional surface enclosed by a closed figure. The area of a closed figure is the number of unit squares that cover the surface of the figure. The unit of area is the square unit, which is a square with each side measuring one unit. The area of a figure can be … Read more
The Siemens (mho) is the unit of electrical conductance. It is the reciprocal of electrical resistance and is represented by the symbol “S”. One Siemens is equal to one ampere per volt. What has a unit of mho? A mho is a unit of electrical conductance. It is the reciprocal of an ohm, and is … Read more
The term “kilogram-meter per second” (abbreviated “kg-m/s”) is a unit of measurement for angular momentum. It is equal to the momentum of a one kilogram object moving at a speed of one meter per second. Is a newton a kilogram-meter per second? No, a newton is not a kilogram-meter per second. A newton is a … Read more
The dot pitch is the distance between the centers of two adjacent dots of the same color on a display screen. It is usually expressed in millimeters (mm). A smaller dot pitch means that more dots can be placed in a given area, resulting in a sharper image. What is resolution and dot pitch? The … Read more
Quality control (QC) is a process by which organizations ensure that products and services meet certain standards of quality. Quality control is often divided into two main categories: quality assurance (QA) and quality control (QC). Quality assurance is a process that focuses on preventing defects from occurring in the first place, while quality control is … Read more
A farad is the SI unit of capacitance, defined as the ability of a body to store an electrical charge. It is named after the English physicist Michael Faraday. What is a farad equal to? A farad is a unit of measurement for capacitance. The farad is the SI unit of capacitance, and is defined … Read more
The Media Rating Council (MRC) is an independent, not-for-profit organisation that provides standards and accreditation for media measurement research. The MRC was founded in 1963 by the American Association of Advertising Agencies (AAAA) and the American Advertising Federation (AAF). The MRC’s mission is to ensure that measurement services used by the media industry are valid, … Read more
8-VSB (8-level vestigial sideband) is a modulation scheme used to transmit digital television signals. It is the modulation scheme used in the ATSC digital television broadcast standard. 8-VSB uses a vestigial sideband to encode the data signal onto an RF carrier. The data signal is first split into 8-bit symbols, which are then modulated onto … Read more
The Bohr radius is a unit of length that is equal to the radius of the orbit of the electron in a hydrogen atom. It is named after Danish physicist Niels Bohr, who developed the Bohr model of the atom. The Bohr radius is approximately equal to 5.29 x 10-11 meters, or 0.529 angstroms. What … Read more
Material density is a term used to describe the amount of material contained in a given volume. It is typically expressed as a ratio of the material’s mass to the volume it occupies. For example, the material density of water is 1 gram per milliliter (g/mL). How do you find the density of a material? … Read more
