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Wingspan
The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of , the official record for a living bird. The term wingspan, more technically extent, is also used for other winged animals such as pterosaurs, bats, insects, etc., and other aircraft such as ornithopters. In humans, the term wingspan also refers to the arm span, which is the distance between the length from the end of an individual's arm (measured at the fingertips) to the individual's fingertips on the other arm when raised parallel to the ground at shoulder height. Wingspan of aircraft The wingspan of an aircraft is always measured in a straight line, from wingtip to wingtip, independently of wing shape or sweep Implications for aircraft design and animal evolution The lift from wings is proportional to their area, so the heavier th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moment Of Inertia
The moment of inertia, otherwise known as the mass moment of inertia, angular mass, second moment of mass, or most accurately, rotational inertia, of a rigid body is a quantity that determines the torque needed for a desired angular acceleration about a rotational axis, akin to how mass determines the force needed for a desired acceleration. It depends on the body's mass distribution and the axis chosen, with larger moments requiring more torque to change the body's rate of rotation. It is an extensive (additive) property: for a point mass the moment of inertia is simply the mass times the square of the perpendicular distance to the axis of rotation. The moment of inertia of a rigid composite system is the sum of the moments of inertia of its component subsystems (all taken about the same axis). Its simplest definition is the second moment of mass with respect to distance from an axis. For bodies constrained to rotate in a plane, only their moment of inertia about an axis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Basketball Association
The National Basketball Association (NBA) is a professional basketball league in North America. The league is composed of 30 teams (29 in the United States and 1 in Canada) and is one of the major professional sports leagues in the United States and Canada. It is the premier men's professional basketball league in the world. The league was founded in New York City on June 6, 1946, as the Basketball Association of America (BAA). It changed its name to the National Basketball Association on August 3, 1949, after merging with the competing National Basketball League (NBL). In 1976, the NBA and the American Basketball Association (ABA) merged, adding four franchises to the NBA. The NBA's regular season runs from October to April, with each team playing 82 games. The league's playoff tournament extends into June. , NBA players are the world's best paid athletes by average annual salary per player. The NBA is an active member of USA Basketball (USAB), which is recognized by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NC State Wolfpack Men's Basketball
The NC State Wolfpack men's basketball team represents North Carolina State University in NCAA Division I men's basketball competition. N.C. State is one of the seven founding members of the Atlantic Coast Conference. Prior to joining the ACC in 1954, the Wolfpack was a member of the Southern Conference, where they won seven conference championships. As a member of the ACC, the Wolfpack has won ten conference championships, as well as two national championships in 1974 and 1983. State's unexpected 1983 title was one of the most memorable in NCAA history. Since 1999, the Pack has played most of its home games at PNC Arena, which is also where the NCAA championship trophies are kept. Prior to 1999, they played at Reynolds Coliseum. History NC State began varsity intercollegiate competition in men's basketball in 1911. In 105 years of play, the Wolfpack ranks 25th in total victories among NCAA Division I college basketball programs and 26th in winning percentage among programs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BeeJay Anya
Chukwunonso Nduka "BeeJay" Anya (born March 9, 1995) is an American basketball player. He played college basketball for the NC State Wolfpack. He was named Atlantic Coast Conference Sixth Man of the Year in 2015. Anya represented the United States youth team at the 2012 FIBA Under-17 World Championship, winning the gold medal. College career Anya played college basketball for NC State where he was best known for his shot blocking ability. During his sophomore season in a game against Jacksonville, he set the NC State school record for blocks in a single game with 10. In setting the record, Anya at one point recorded 4 blocks in a single possession. His 91 blocks during the 2014–2015 season put him second on the NC State single season blocks list, behind Thurl Bailey's 95 blocks in 1983. Anya entered the 2015–2016 season in 5th place on NC State's career blocks list with 137 career blocks. He finished his career with the Wolfpack in 2017 with 243 career blocked shots, a sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reach (physical Measurement)
Arm span or reach (sometimes referred to as wingspan, or spelled "armspan") is the physical measurement of the length from one end of an individual's arms (measured at the fingertips) to the other when raised Parallel (geometry), parallel to the ground at shoulder height at a 90° angle. The arm span measurement is usually very close to the human height, person's height. Age, sex, and ethnicity have to be taken into account to best predict height from arm span. Arm span is sometimes used when a height measurement is needed but the individual cannot stand on a traditional stadiometer or against a wall due to abnormalities of the back or legs, such as scoliosis, osteoporosis, amputations, or those who are confined to a bed or wheelchair. Other, possibly more accurate measuring techniques include knee length or Lying (position), recumbent length when possible. Because any decrease in height will cause an increase in the ratio of arm span to height, a large span to height ratio may s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gridiron Football
Gridiron football,"Gridiron football" ''Encyclopædia Britannica''. Retrieved October 20, 2010. also known as North American football or, in North America, simply football, is a family of football team sports primarily played in the United States and Canada. American football, which uses 11 players, is the form played in the United States and the best known form of gridiron football worldwide, while Canadian football, which uses 12 players, predominates in Canada. Other derivative varieties include arena football, flag football and amateur games such as Touch football (American), touch and street football (American), street football. Football is played at professional gridiron football, professional, college football, collegiate, High school football, high school, semi-professional, and amateur levels. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basketball
Basketball is a team sport in which two teams, most commonly of five players each, opposing one another on a rectangular Basketball court, court, compete with the primary objective of #Shooting, shooting a basketball (ball), basketball (approximately in diameter) through the defender's hoop (a basket in diameter mounted high to a Backboard (basketball), backboard at each end of the court, while preventing the opposing team from shooting through their own hoop. A Field goal (basketball), field goal is worth two points, unless made from behind the 3 point line, three-point line, when it is worth three. After a foul, timed play stops and the player fouled or designated to shoot a technical foul is given one, two or three one-point free throws. The team with the most points at the end of the game wins, but if regulation play expires with the score tied, an additional period of play (Overtime (sports), overtime) is mandated. Players advance the ball by bouncing it while walking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perpendicular
In elementary geometry, two geometric objects are perpendicular if they intersect at a right angle (90 degrees or π/2 radians). The condition of perpendicularity may be represented graphically using the ''perpendicular symbol'', ⟂. It can be defined between two lines (or two line segments), between a line and a plane, and between two planes. Perpendicularity is one particular instance of the more general mathematical concept of '' orthogonality''; perpendicularity is the orthogonality of classical geometric objects. Thus, in advanced mathematics, the word "perpendicular" is sometimes used to describe much more complicated geometric orthogonality conditions, such as that between a surface and its '' normal vector''. Definitions A line is said to be perpendicular to another line if the two lines intersect at a right angle. Explicitly, a first line is perpendicular to a second line if (1) the two lines meet; and (2) at the point of intersection the straight angle on one side ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apex (entomology)
This glossary of entomology describes terms used in the formal study of insect species by entomologists. A–C A synthetic chlorinated hydrocarbon insecticide, toxic to vertebrates. Though its phytotoxicity is low, solvents in some formulations may damage certain crops. cf. the related Dieldrin, Endrin, Isodrin * D–F A synthetic chlorinated hydrocarbon insecticide, toxic to vertebrates. cf. the related Aldrin, Endrin, Isodrin A synthetic chlorinated hydrocarbon insecticide, toxic to vertebrates. Though its phytotoxicity is low, solvents in some formulations may damage certain crops. cf. the related Dieldrin, Aldrin, Isodrin G–L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primary Feather
Flight feathers (''Pennae volatus'') are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (), singular remex (), while those on the tail are called rectrices (), singular rectrix (). The primary function of the flight feathers is to aid in the generation of both thrust and lift, thereby enabling flight. The flight feathers of some birds have evolved to perform additional functions, generally associated with territorial displays, courtship rituals or feeding methods. In some species, these feathers have developed into long showy plumes used in visual courtship displays, while in others they create a sound during display flights. Tiny serrations on the leading edge of their remiges help owls to fly silently (and therefore hunt more successfully), while the extra-stiff rectrices of woodpeckers help them to brace against tree trunks as they hammer on them. Even flightless birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrist
In human anatomy, the wrist is variously defined as (1) the Carpal bones, carpus or carpal bones, the complex of eight bones forming the proximal skeletal segment of the hand; "The wrist contains eight bones, roughly aligned in two rows, known as the carpal bones." (2) the wrist joint or radiocarpal joint, the joint between the radius (bone), radius and the Carpal bones, carpus and; (3) the anatomical region surrounding the carpus including the distal parts of the bones of the forearm and the proximal parts of the metacarpus or five metacarpal bones and the series of joints between these bones, thus referred to as ''wrist joints''. "With the large number of bones composing the wrist (ulna, radius, eight carpas, and five metacarpals), it makes sense that there are many, many joints that make up the structure known as the wrist." This region also includes the carpal tunnel, the anatomical snuff box, bracelet lines, the Flexor retinaculum of the hand, flexor retinaculum, and the ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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