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Curl (football)
Curve or bend in association football is a definition for a spin on the ball which makes the ball move in a curved direction. When kicking the ball, the inside of the foot is often used to curl the ball, but this can also be done by using the outside of the foot. Similar to curl, the ball can also swerve in the air, without the ''spin'' on the ball which makes the ball curl. Curving or bending the ball is especially used in free kicks, shots from outside the penalty area and crosses. Differences between balls can affect the amount of swerve and curl: traditional leather footballs were too heavy to curl without great effort, whereas lighter modern footballs curl more easily. Nomenclature The deviation of a ball from the straight path in the air is known as the curl, or swerve; however, the spin on the ball that causes this is also known as the curl. Shots that curl, bend, or swerve are known as curlers, or in extreme cases, banana shots. The technique of putting curl on a ball with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beckham First Goal LA Galaxy
Beckham most commonly refers to: * Beckham (surname), a surname (and list of people with that name) **David Beckham (born 1975), English former professional footballer **Odell Beckham Jr. (born 1992), American football player Beckham may also refer to: Places * Beckham, Virginia, US, an unincorporated community * East Beckham, Norfolk, England * West Beckham, Norfolk, England * Beckham County, Kentucky, US *Beckham County, Oklahoma, US Other *'' Beckham'', a British documentary series about David Beckham *''Bend It Like Beckham ''Bend It Like Beckham'' is a 2002 Sports film, sports comedy-drama film directed by Gurinder Chadha from a screenplay by Chadha, Paul Mayeda Berges, and Guljit Bindra. The film stars Parminder Nagra, Keira Knightley, Jonathan Rhys Meyers, Anu ...'', a British sports comedy film * Beckham rule, a rule in Major League Soccer in the United States and Canada, allowing each team to sign one player outside of the league's salary cap See also * Beckingham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cristiano Ronaldo
Cristiano Ronaldo dos Santos Aveiro (; born 5 February 1985) is a Portuguese professional Association football, footballer who plays as a Forward (association football), forward for and Captain (association football), captains both Saudi Pro League club Al-Nassr FC, Al-Nassr and the Portugal national football team, Portugal national team. Nicknamed CR7, he is widely regarded as one of the greatest players of all time, and has won numerous List of career achievements by Cristiano Ronaldo#Individual honours, individual accolades throughout Career of Cristiano Ronaldo, his professional footballing career, including five Ballon d'Or awards, a record three UEFA Men's Player of the Year Awards, four European Golden Shoes, and was named five times the The Best FIFA Men's Player#FIFA Player of the Year (including predecessors), world's best player by FIFA. He has won List of career achievements by Cristiano Ronaldo#Collective awards, 34 trophies in his career, including seven league ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge
Cambridge ( ) is a List of cities in the United Kingdom, city and non-metropolitan district in the county of Cambridgeshire, England. It is the county town of Cambridgeshire and is located on the River Cam, north of London. As of the 2021 United Kingdom census, the population of the City of Cambridge was 145,700; the population of the wider built-up area (which extends outside the city council area) was 181,137. (2021 census) There is archaeological evidence of settlement in the area as early as the Bronze Age, and Cambridge became an important trading centre during the Roman Britain, Roman and Viking eras. The first Town charter#Municipal charters, town charters were granted in the 12th century, although modern city status was not officially conferred until 1951. The city is well known as the home of the University of Cambridge, which was founded in 1209 and consistently ranks among the best universities in the world. The buildings of the university include King's College Chap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Real Tennis
Real tennis – one of several games sometimes called "the sport of kings" – is the original racquet sport from which the modern game of tennis (also called "lawn tennis") is derived. It is also known as court tennis in the United States, royal tennis in England and Australia, and ''courte-paume'' in France (to distinguish it from longue-paume, and in reference to the older, racquetless game of '' jeu de paume'', the ancestor of modern handball and racquet games). Many French real tennis courts are at ''jeu de paume'' clubs. The term ''real'' was first used by journalists in the early 20th century as a retronym to distinguish the ancient game from modern ''lawn'' tennis (even though, at present, the latter sport is seldom contested on lawns outside the few social-club-managed estates such as Wimbledon). There are just 45 active real tennis courts in the world, located in the United Kingdom, Australia, the United States and France. There are also currently six disu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isaac Newton
Sir Isaac Newton () was an English polymath active as a mathematician, physicist, astronomer, alchemist, theologian, and author. Newton was a key figure in the Scientific Revolution and the Age of Enlightenment, Enlightenment that followed. His book (''Mathematical Principles of Natural Philosophy''), first published in 1687, achieved the Unification of theories in physics#Unification of gravity and astronomy, first great unification in physics and established classical mechanics. Newton also made seminal contributions to optics, and Leibniz–Newton calculus controversy, shares credit with German mathematician Gottfried Wilhelm Leibniz for formulating calculus, infinitesimal calculus, though he developed calculus years before Leibniz. Newton contributed to and refined the scientific method, and his work is considered the most influential in bringing forth modern science. In the , Newton formulated the Newton's laws of motion, laws of motion and Newton's law of universal g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Magnus
Heinrich Gustav Magnus (; 2 May 1802 – 4 April 1870) was a German experimental scientist. His training was mostly in chemistry but his later research was mostly in physics. He spent the great bulk of his career at the University of Berlin, where he is remembered for his laboratory teaching as much as for his original research. He did not use his first given name, and was known throughout his life as Gustav Magnus. Education Magnus was born in Berlin to a Jewish family, his father a wealthy merchant. In his youth he received private instruction in mathematics and natural science. At the University of Berlin he studied chemistry and physics, 1822–27, and obtained a doctorate for a dissertation on tellurium in 1827. His doctoral adviser was Eilhard Mitscherlich. He then went to Stockholm for a year as a visiting research fellow at the laboratory of Jöns Jakob Berzelius (who was a personal friend of Mitscherlich). That was followed by a year in Paris at the laboratory of Joseph L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Pressure
Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The Standard atmosphere (unit), standard atmosphere (symbol: atm) is a unit of pressure defined as , which is equivalent to 1,013.25 Bar (unit), millibars, 760millimetre of mercury, mm Hg, 29.9212inch of mercury, inchesHg, or 14.696pounds per square inch, psi.International Civil Aviation Organization. ''Manual of the International Standard Atmosphere, ICAO Standard Atmosphere'', Doc 7488-CD, Third Edition, 1993. . The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth; that is, the Earth's atmospheric pressure at sea level is approximately 1 atm. In most circumstances, atmospheric pressure is closely approximated by the fluid pressure, hydrostatic pressure caused by the weight of Earth's atmosphere, air above the measurement point. As elevation increases, there is less overlying atmospheric mass, so atmospher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whirlpool
A whirlpool is a body of rotating water produced by opposing currents or a current running into an obstacle. Small whirlpools form when a bath or a sink is draining. More powerful ones formed in seas or oceans may be called maelstroms ( ). ''Vortex'' is the proper term for a whirlpool that has a downdraft. In narrow ocean straits with fast flowing water, whirlpools are often caused by tides. Many stories tell of ships being sucked into a maelstrom, although only smaller craft are actually in danger. Smaller whirlpools appear at Rapids, river rapids and can be observed downstream of artificial structures such as weirs and dams. Large waterfall, cataracts, such as Niagara Falls, produce strong whirlpools. Notable whirlpools Saltstraumen Saltstraumen is a narrow strait located close to the Arctic Circle, south-east of the city of Bodø (town), Bodø, Norway. It has one of the strongest tidal currents in the world. Whirlpools up to in diameter and in depth are formed when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnus Effect
The Magnus effect is a phenomenon that occurs when a spin (geometry), spinning Object (physics), object is moving through a fluid. A lift (force), lift force acts on the spinning object and its path may be deflected in a manner not present when it is not spinning. The strength and direction of the Magnus force is dependent on the speed and direction of the rotation of the object. The Magnus effect is named after Heinrich Gustav Magnus, the German physicist who investigated it. The force on a rotating cylinder is an example of Kutta–Joukowski theorem, Kutta–Joukowski lift, named after Martin Kutta and Nikolay Zhukovsky (scientist), Nikolay Zhukovsky (or Joukowski), mathematicians who contributed to the knowledge of how lift is generated in a fluid flow. Description The most readily observable case of the Magnus effect is when a spinning sphere (or cylinder) curves away from the arc it would follow if it were not spinning. It is often used by football (soccer) and volleybal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backspin
In sports, backspin or underspin refers to the reverse rotation of a ball, in relation to the ball's trajectory, that is imparted on the ball by a slice or chop shot. Backspin generates an upward force that lifts the ball (see Magnus effect). While a normal hit bounces well forward as well as up, backspin shots bounce higher and less forward. Backspin is the opposite of topspin. The technique was invented in 1986 by a Robert Esperat during the Calgary Olympics. In racket sports, the higher bounce imparted by backspin may make a receiver who has prepared for a different shot miss or mis-hit the ball when swinging. A backspin shot is also useful for defensive shots because a backspin shot takes longer to travel to the opponent, giving the defender more time to get back into position. Also, because backspin shots tend to bounce less far forward once they reach the opposite court, they may be more difficult to attack. This is especially important in table tennis because one must wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volley (football)
A volley is an air-borne strike in association football, where a player's foot meets and directs the ball in an angled direction before it has time to reach the ground. A volley can be extremely hard to aim and requires good foot-eye coordination and timing. The half volley is a similar concept, but occurs when the ball has just bounced from the ground rather than is in the air. Volley In general, the volley requires that the player strike the ball with the front of his foot, with the toes pointing downward, ankle locked, and the knee lifted. It is important for most applications to keep the knee high over the ball when struck, and lean slightly forward to keep the shot downward. Doing so imparts a great deal of topspin and prevents the ball from flying wildly over the goal if done correctly. Because of the power and spin imparted on the ball, the shot can follow an unpredictable path to goal and prove difficult to defend against. Used offensively, the volley can play a crucial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corner Kick
A corner kick, commonly known as a corner, is the method of restarting play in a game of association football when the ball goes out of play over the goal line, without a goal being scored and having last been touched by a member of the defending team. The kick is taken from the corner of the field of play nearest to the place where the ball crossed the goal line. Corners are considered to be a reasonable goal-scoring opportunity for the attacking side, though not as much as a penalty kick or a direct free kick near the edge of the penalty area. A corner kick that scores without being touched by another player is called an ''Olimpico goal'',; or less commonly, ''Olympic goal''. Award A corner kick is awarded when the ball wholly crosses the goal line outside of the goal frame having been last touched by a member of the team defending that end of the pitch. For the purposes of this rule, it does not matter if this touch is deliberate; it is permissible to kick the ball ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
