A comprehensive digital encyclopedia presenting factual, historical, and educational articles supported by reliable sources and structured data. Page: 44

The present tense (abbreviated PRES or PRS) is a grammatical tense whose principal function is to locate a situation or event in the present time. The present tense is used for actions which are happening now. In order to explain and understand present tense, it is useful to imagine time as a line o…

The photic zone (or euphotic zone, epipelagic zone, or sunlight zone) is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, and biological processes that supply nutrients into the upper water c…

A landlocked country is a country that has no coastlines on the world ocean. Currently, there are 44 landlocked countries, two of them doubly landlocked due to being surrounded by other landlocked nations (Liechtenstein and Uzbekistan), and three landlocked de facto states in the world, South Osseti…

Percy Duncan Haughton (July 11, 1876 – October 27, 1924) was an American football and baseball player and coach. He served as head football coach at Cornell University from 1899 to 1900, at Harvard University from 1908 to 1916, and at Columbia University from 1923 to 1924, compiling a career college…

Frederick Sanford Akers (March 17, 1938 – December 7, 2020) was an American football player and coach. He served as head football coach at the University of Wyoming (1975–1976), the University of Texas at Austin (1977–1986), and Purdue University (1987–1990), compiling a career college football reco…

James Richard Katcavage (October 28, 1934 – February 22, 1995) was an American professional football defensive tackle in the National Football League (NFL) who played thirteen seasons for the New York Giants.…

In geometry, a vertex configuration is a shorthand notation for representing a polyhedron or tiling as the sequence of faces around a vertex. It has variously been called a vertex description, vertex type, vertex symbol, vertex arrangement, vertex pattern, face-vector, vertex sequence. It is also ca…

A check digit is a form of redundancy check used for error detection on identification numbers, such as bank account numbers, which are used in an application where they will at least sometimes be input manually. It is analogous to a binary parity bit used to check for errors in computer-generated d…

Forbes Field was a baseball park in the Oakland neighborhood of Pittsburgh, Pennsylvania, from 1909 to June 28, 1970. It was the third home of the Pittsburgh Pirates, the city's Major League Baseball (MLB) team, and the first home of the Pittsburgh Steelers, the city's National Football League (NFL)…

In geometry and trigonometry, a right angle is an angle of exactly 90 degrees or ⁠ π {\displaystyle \pi } /2⁠ radians corresponding to a quarter turn. If a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles. The term is a calque of Latin ang…