This article is about the martial art. For other uses, see Karate (disambiguation).
Karate
(空手)
Hanashiro Chōmo
Also known as Karate-dō (空手道)
Focus Striking
Hardness full contact to non contact
Country of origin Ryūkyū Kingdom / Japan (from Ryukyu Islands indigenous fighting methods and Chinese kenpō[1][2] and further explored in Japan)
Creator Sakukawa Kanga; Matsumura Sōkon; Itosu Ankō; Arakaki Seishō; Higaonna Kanryō; Gichin Funakoshi; Motobu Chōki
Parenthood Chinese martial arts, indigenous martial arts of Ryukyu Islands (Naha-te, Shuri-te, Tomari-te)[1][2]
Olympic sport Not voted in 2005 (for 2012) or in 2009 (for 2016)
Karate (空手?) (Japanese pronunciation: [kaɽate] ( listen), English: /kəˈrɑːtiː/) is a martial art developed in the Ryukyu Islands in what is now Okinawa, Japan. It was developed from indigenous fighting methods called te (手?, literally "hand"; Tii in Okinawan) and Chinese kenpō.[1][2] Karate is a striking art using punching, kicking, knee and elbow strikes, and open-handed techniques such as knife-hands (karate chop). Grappling, locks, restraints, throws, and vital point strikes are taught in some styles.[3] A karate practitioner is called a karateka (空手家?).
Karate was developed in the Ryukyu Kingdom prior to its 19th century annexation by Japan. It was brought to the Japanese mainland in the early 20th century during a time of cultural exchanges between the Japanese and the Ryukyuans. In 1922 the Japanese Ministry of Education invited Gichin Funakoshi to Tokyo to give a karate demonstration. In 1924 Keio University established the first university karate club in Japan and by 1932, major Japanese universities had karate clubs.[4] In this era of escalating Japanese militarism,[5] the name was changed from 唐手 ("Chinese hand") to 空手 ("empty hand") – both of which are pronounced karate – to indicate that the Japanese wished to develop the combat form in Japanese style.[6] After the Second World War, Okinawa became an important United States military site and karate became popular among servicemen stationed there.[7]
The martial arts movies of the 1960s and 1970s served to greatly increase its popularity and the word karate began to be used in a generic way to refer to all striking-based Oriental martial arts.[8] Karate schools began appearing across the world, catering to those with casual interest as well as those seeking a deeper study of the art.
Shigeru Egami, Chief Instructor of Shotokan Dojo, opined "that the majority of followers of karate in overseas countries pursue karate only for its fighting techniques...Movies and television...depict karate as a mysterious way of fighting capable of causing death or injury with a single blow...the mass media present a pseudo art far from the real thing."[9] Shoshin Nagamine said "Karate may be considered as the conflict within oneself or as a life-long marathon which can be won only through self-discipline, hard training and one's own creative efforts." [10]
Karate began as a common fighting system known as te (Okinawan: ti) among the Pechin class of the Ryukyuans. After trade relationships were established with the Ming dynasty of China by King Satto of Chūzan in 1372, some forms of Chinese martial arts were introduced to the Ryukyu Islands by the visitors from China, particularly Fujian Province. A large group of Chinese families moved to Okinawa around 1392 for the purpose of cultural exchange, where they established the community of Kumemura and shared their knowledge of a wide variety of Chinese arts and sciences, including the Chinese martial arts. The political centralization of Okinawa by King Shō Hashi in 1429 and the 'Policy of Banning Weapons,' enforced in Okinawa after the invasion of the Shimazu clan in 1609, are also factors that furthered the development of unarmed combat techniques in Okinawa.[2]
There were few formal styles of te, but rather many practitioners with their own methods. One surviving example is the Motobu-ryū school passed down from the Motobu family by Seikichi Uehara.[13] Early styles of karate are often generalized as Shuri-te, Naha-te, and Tomari-te, named after the three cities from which they emerged.[14] Each area and its teachers had particular kata, techniques, and principles that distinguished their local version of te from the others.
Members of the Okinawan upper classes were sent to China regularly to study various political and practical disciplines. The incorporation of empty-handed Chinese Kung Fu into Okinawan martial arts occurred partly because of these exchanges and partly because of growing legal restrictions on the use of weaponry. Traditional karate kata bear a strong resemblance to the forms found in Fujian martial arts such as Fujian White Crane, Five Ancestors, and Gangrou-quan (Hard Soft Fist; pronounced "Gōjūken" in Japanese).[15] Further influence came from Southeast Asia— particularly Sumatra, Java, and Melaka[citation needed]. Many Okinawan weapons such as the sai, tonfa, and nunchaku may have originated in and around Southeast Asia.
Sakukawa Kanga (1782–1838) had studied pugilism and staff (bo) fighting in China (according to one legend, under the guidance of Kosokun, originator of kusanku kata). In 1806 he started teaching a fighting art in the city of Shuri that he called "Tudi Sakukawa," which meant "Sakukawa of China Hand." This was the first known recorded reference to the art of "Tudi," written as 唐手. Around the 1820s Sakukawa's most significant student Matsumura Sōkon (1809–1899) taught a synthesis of te (Shuri-te and Tomari-te) and Shaolin (Chinese 少林) styles. Matsumura's style would later become the Shōrin-ryū style.
Ankō Itosu
Grandfather of Modern KarateMatsumura taught his art to Itosu Ankō (1831–1915) among others. Itosu adapted two forms he had learned from Matsumara. These are kusanku and chiang nan[citation needed]. He created the ping'an forms ("heian" or "pinan" in Japanese) which are simplified kata for beginning students. In 1901 Itosu helped to get karate introduced into Okinawa's public schools. These forms were taught to children at the elementary school level. Itosu's influence in karate is broad. The forms he created are common across nearly all styles of karate. His students became some of the most well known karate masters, including Gichin Funakoshi, Kenwa Mabuni, and Motobu Chōki. Itosu is sometimes referred to as "the Grandfather of Modern Karate."[16]
Thursday, December 30, 2010
Boxing
Boxing is a combat sport and martial art in which two people fight using their fists for competition. Boxing is typically supervised by a referee engaged in during a series of one- to three-minute intervals called rounds, and boxers generally of similar weight. There are four ways to win; if the opponent is knocked out and unable to get up before the referee counts to ten seconds (a knockout, or KO) or if the opponent is deemed too injured to continue (a Technical Knockout, or TKO), if an opponent is disqualified for breaking a rule, or if there is no stoppage of the fight before an agreed number of rounds, a winner is determined either by the referee's decision or by judges' scorecards Fist fighting depicted in Sumerian relief carvings from the 3rd millennium BC, while an ancient Egyptian relief from the 2nd millennium BC depicts both fist-fighters and spectators.[1] Both depictions show bare-fisted contests.[1] In 1927 Dr. E. A. Speiser, an archaeologist, discovered a Mesopotamian stone tablet in Baghdad, Iraq depicting two men getting ready for a prize fight. The tablet is believed to be 7,000 years old.[2] The earliest evidence for fist fighting with any kind of gloves can be found on Minoan Crete (c. 1500–900 BC), and on Sardinia, if we consider the boxing statues of Prama mountains (c. 2000–1000 BC} Early fighting had no written rules. There were no weight divisions or round limits, and no referee. In general, it was extremely chaotic. The first boxing rules, called the Broughton's rules, were introduced by heavyweight champion Jack Broughton in 1743 to protect fighters in the ring where deaths sometimes occurred.[7] Under these rules, if a man went down and could not continue after a count of 30 seconds, the fight was over. Hitting a downed fighter and grasping below the waist were prohibited. Broughton also invented and encouraged the use of "mufflers", a form of padded gloves, which were used in training and exhibitions. The first paper on boxing was published in the late 18th century by successful Birmingham boxer 'William Futrell' who remained undefeated until his one hour and seventeen minute fight at Smitham Bottom, Croydon, on July 9, 1788 against a much younger "Gentleman" John Jackson which was attended by the Prince of Wales.
These rules did allow the fighters an advantage not enjoyed by today's boxers: They permitted the fighter to drop to one knee to begin a 30-second count at any time. Thus a fighter realizing he was in trouble had an opportunity to recover. However, this was considered "unmanly"[8] and was frequently disallowed by additional rules negotiated by the Seconds of the Boxers.[9] Intentionally going down in modern boxing will cause the recovering fighter to lose points in the scoring system. Furthermore, as the contestants did not have heavy leather gloves and wristwraps to protect their hands, a certain amount of restraint was required when striking the head.
These rules did allow the fighters an advantage not enjoyed by today's boxers: They permitted the fighter to drop to one knee to begin a 30-second count at any time. Thus a fighter realizing he was in trouble had an opportunity to recover. However, this was considered "unmanly"[8] and was frequently disallowed by additional rules negotiated by the Seconds of the Boxers.[9] Intentionally going down in modern boxing will cause the recovering fighter to lose points in the scoring system. Furthermore, as the contestants did not have heavy leather gloves and wristwraps to protect their hands, a certain amount of restraint was required when striking the head.
Running
This article is about locomotion in humans. For running in horses, see Horse gait. For locomotion in dogs, see Gait (dog). For general locomotion, see Gait. For other uses, see Running (disambiguation).
Edward Muybridge photo sequence
People running at the 2007 Brussels marathonRunning is a means of terrestrial locomotion allowing a human or an animal to move rapidly on foot. It is simply defined in athletics terms as a gait in which at regular points during the running cycle both feet are off the ground. This is in contrast to walking, where one foot is always in contact with the ground, the legs are kept mostly straight and the center of gravity vaults over the legs in an inverted pendulum fashion.[1] A characteristic feature of a running body from the viewpoint of spring-mass mechanics, is that changes in kinetic and potential energy within a stride occur simultaneously, with energy storage accomplished by springy tendons and passive muscle elasticity.[2]The term running can refer to any of a variety of speeds ranging from jogging to sprinting.
The ancestors of mankind developed the ability to run about four and a half million years ago, probably in order to hunt animals. Competitive running grew out of religious festivals in various areas. Records of competitive racing date back to the Tailteann Games in Ireland in 1829 BCE, while the first recorded Olympic Games took place in 776 BCE.
Humans leap from one leg to the other while running. Each leap raises the center of gravity during take-off and lowers it on landing as the knee bends to absorb the shock. At mid arc, both feet are momentarily off the ground. This continual rise and fall of bodyweight expends energy opposing gravity and absorbing shock during take-off and landing. Running on a track requires more energy than walking to cover the same distance due to air resistance at higher speeds. However on a treadmill running and walking require the same amount of energy to cover the same distance.[citation needed] As reported by Hall et al. males on a track running at a pace of 6.3 mph use 1.20 times as much energy to travel the same distance as walking at a pace of 3.15 mph, but on a treadmill running 6.3 mph uses just 1.01 times as much energy to travel the same distance as walking at 3.15 mph.[7] Therefore, running is less efficient than walking in terms of calories expended per unit distance, though it is faster.
Running is executed as a sequence of strides, which alternate between the two legs. Each leg's stride can be roughly divided into three phases: support, drive, and recovery. Support and drive occur when the foot is in contact with the ground. Recovery occurs when the foot is off the ground. Since only one foot is on the ground at a time in running, one leg is always in recovery, while the other goes through support and drive. Then, briefly, as the runner leaps through the air, both legs are in recovery. These phases are described in detail below.
Edward Muybridge photo sequence
People running at the 2007 Brussels marathonRunning is a means of terrestrial locomotion allowing a human or an animal to move rapidly on foot. It is simply defined in athletics terms as a gait in which at regular points during the running cycle both feet are off the ground. This is in contrast to walking, where one foot is always in contact with the ground, the legs are kept mostly straight and the center of gravity vaults over the legs in an inverted pendulum fashion.[1] A characteristic feature of a running body from the viewpoint of spring-mass mechanics, is that changes in kinetic and potential energy within a stride occur simultaneously, with energy storage accomplished by springy tendons and passive muscle elasticity.[2]The term running can refer to any of a variety of speeds ranging from jogging to sprinting.
The ancestors of mankind developed the ability to run about four and a half million years ago, probably in order to hunt animals. Competitive running grew out of religious festivals in various areas. Records of competitive racing date back to the Tailteann Games in Ireland in 1829 BCE, while the first recorded Olympic Games took place in 776 BCE.
Humans leap from one leg to the other while running. Each leap raises the center of gravity during take-off and lowers it on landing as the knee bends to absorb the shock. At mid arc, both feet are momentarily off the ground. This continual rise and fall of bodyweight expends energy opposing gravity and absorbing shock during take-off and landing. Running on a track requires more energy than walking to cover the same distance due to air resistance at higher speeds. However on a treadmill running and walking require the same amount of energy to cover the same distance.[citation needed] As reported by Hall et al. males on a track running at a pace of 6.3 mph use 1.20 times as much energy to travel the same distance as walking at a pace of 3.15 mph, but on a treadmill running 6.3 mph uses just 1.01 times as much energy to travel the same distance as walking at 3.15 mph.[7] Therefore, running is less efficient than walking in terms of calories expended per unit distance, though it is faster.
Running is executed as a sequence of strides, which alternate between the two legs. Each leg's stride can be roughly divided into three phases: support, drive, and recovery. Support and drive occur when the foot is in contact with the ground. Recovery occurs when the foot is off the ground. Since only one foot is on the ground at a time in running, one leg is always in recovery, while the other goes through support and drive. Then, briefly, as the runner leaps through the air, both legs are in recovery. These phases are described in detail below.
Badminton
The beginnings of Badminton can be traced to mid-18th century British India, where it was created by British military officers stationed there.[2] Early photographs show Englishmen adding a net to the traditional English game of battledore and shuttlecock. Being particularly popular in the British garrison town Poona (now Pune), the game also came to be known as Poona.[2][3] Initially, balls of wool refereed as ball badminton were preferred by the upper classes in windy or wet conditions, but ultimately the shuttlecock stuck. This game was taken by retired officers back to England where it developed and rules were set out.
As early as 1860, Isaac Spratt, a London toy dealer, published a booklet, Badminton Battledore - a new game, but unfortunately no copy has survived.[
Badminton is a racquet sport played by either two opposing players (singles) or two opposing pairs (doubles), who take positions on opposite halves of a rectangular court that is divided by a net. Players score points by striking a shuttlecock(also known as a birdy) with their racquet so that it passes over the net and lands in their opponents' half of the court. Each side may only strike the shuttlecock once before it passes over the net. A rally ends once the shuttlecock has struck the floor.
The shuttlecock (or shuttle) is a feathered projectile whose unique aerodynamic properties cause it to fly differently from the balls used in most racquet sports; in particular, the feathers create much higher drag, causing the shuttlecock to decelerate more rapidly than a ball. Shuttlecocks have a much higher top speed, when compared to other racquet sports. Because shuttlecock flight is affected by wind, competitive badminton is played indoors. Badminton is also played outdoors as a casual recreational activity, often as a garden or beach game.
Since 1992, badminton has been an Olympic sport with five events: men's and women's singles, men's and women's doubles, and mixed doubles, in which each pair consists of a man and a woman. At high levels of play, the sport demands excellent fitness: players require aerobic stamina, agility, strength, speed and precision. It is also a technical sport, requiring good motor coordination and the development of sophisticated racquet movements
As early as 1860, Isaac Spratt, a London toy dealer, published a booklet, Badminton Battledore - a new game, but unfortunately no copy has survived.[
Badminton is a racquet sport played by either two opposing players (singles) or two opposing pairs (doubles), who take positions on opposite halves of a rectangular court that is divided by a net. Players score points by striking a shuttlecock(also known as a birdy) with their racquet so that it passes over the net and lands in their opponents' half of the court. Each side may only strike the shuttlecock once before it passes over the net. A rally ends once the shuttlecock has struck the floor.
The shuttlecock (or shuttle) is a feathered projectile whose unique aerodynamic properties cause it to fly differently from the balls used in most racquet sports; in particular, the feathers create much higher drag, causing the shuttlecock to decelerate more rapidly than a ball. Shuttlecocks have a much higher top speed, when compared to other racquet sports. Because shuttlecock flight is affected by wind, competitive badminton is played indoors. Badminton is also played outdoors as a casual recreational activity, often as a garden or beach game.
Since 1992, badminton has been an Olympic sport with five events: men's and women's singles, men's and women's doubles, and mixed doubles, in which each pair consists of a man and a woman. At high levels of play, the sport demands excellent fitness: players require aerobic stamina, agility, strength, speed and precision. It is also a technical sport, requiring good motor coordination and the development of sophisticated racquet movements
base ball
This article is about the sport. For other uses, see Baseball (disambiguation Baseball is a bat-and-ball sport played between two teams of nine players each. The goal is to score runs by hitting a thrown ball with a bat and touching a series of four bases arranged at the corners of a ninety-foot square, or diamond. Players on one team (the batting team) take turns hitting against the pitcher of the other team (the fielding team), which tries to stop them from scoring runs by getting hitters out in any of several ways. A player on the batting team can stop at any of the bases and later advance via a teammate's hit or other means. The teams switch between batting and fielding whenever the fielding team records three outs. One turn at bat for each team constitutes an inning and nine innings make up a professional game. The team with the most runs at the end of the game wins. In North America, professional Major League Baseball (MLB) teams are divided into the National League (NL) and American League (AL). Each league has three divisions: East, West, and Central. Every year, the major league champion is determined by playoffs that culminate in the World Series. Four teams make the playoffs from each league: the three regular season division winners, plus one wild card team. Baseball is the leading team sport in both Japan and Cuba, and the top level of play is similarly split between two leagues: Japan's Central League and Pacific League; Cuba's West League and East League. In the National and Central leagues, the pitcher is required to bat, per the traditional rules. In the American, Pacific, and both Cuban leagues, there is a tenth player, a designated hitter, who bats for the pitcher. Each top-level team has a farm system of one or more minor league teams. These teams allow younger players to develop as they gain on-field experience against opponents with similar levels of skill
Hockey ball
Hockey is a family of sports in which two teams play against each other by trying to maneuver a ball or a puck into the opponent's goal using a hockey stick.
Games played with curved sticks and a ball have been found throughout history and the world. There are 4000-year-old drawings from Egypt. Hurling dates to before 1272 BC in Ireland, and there is a depiction from ca. 600 BC in Ancient Greece where the game may have been called kerētízein or kerhtízein (κερητίζειν) because it was played with a horn (kéras, κέρας)[2] or horn-like stick. In Inner Mongolia, China, the Daur people have been playing beikou, a game similar to modern field hockey, for about 1,000 years.[3] There were hockey-like games throughout Europe during the Middle Ages[citation needed] and the word "hockey" was recorded in 1363 when Edward III of England issued the proclamation: "[m]oreover we ordain that you prohibit under penalty of imprisonment all and sundry from such stone, wood and iron throwing; handball, football, or hockey; coursing and cock-fighting, or other such idle games The governing body is the 116-member International Hockey Federation (FIH). Men's field hockey has been played at each summer Olympic Games since 1908 (except 1912 and 1924), while women's field hockey has been played at the Summer Olympic Games since 1980.
Modern field hockey sticks are J-shaped and constructed of a composite of wood, glass fibre or carbon fibre (sometimes both) and have a curved hook at the playing end, a flat surface on the playing side and curved surface on the rear side. While current field hockey appeared in the mid-18th century in England, primarily in schools, it was not until the first half of the 19th century that it became firmly established. The first club was created in 1849 at Blackheath in south-east London. Field hockey is the national sport of India and Pakistan.[
Games played with curved sticks and a ball have been found throughout history and the world. There are 4000-year-old drawings from Egypt. Hurling dates to before 1272 BC in Ireland, and there is a depiction from ca. 600 BC in Ancient Greece where the game may have been called kerētízein or kerhtízein (κερητίζειν) because it was played with a horn (kéras, κέρας)[2] or horn-like stick. In Inner Mongolia, China, the Daur people have been playing beikou, a game similar to modern field hockey, for about 1,000 years.[3] There were hockey-like games throughout Europe during the Middle Ages[citation needed] and the word "hockey" was recorded in 1363 when Edward III of England issued the proclamation: "[m]oreover we ordain that you prohibit under penalty of imprisonment all and sundry from such stone, wood and iron throwing; handball, football, or hockey; coursing and cock-fighting, or other such idle games The governing body is the 116-member International Hockey Federation (FIH). Men's field hockey has been played at each summer Olympic Games since 1908 (except 1912 and 1924), while women's field hockey has been played at the Summer Olympic Games since 1980.
Modern field hockey sticks are J-shaped and constructed of a composite of wood, glass fibre or carbon fibre (sometimes both) and have a curved hook at the playing end, a flat surface on the playing side and curved surface on the rear side. While current field hockey appeared in the mid-18th century in England, primarily in schools, it was not until the first half of the 19th century that it became firmly established. The first club was created in 1849 at Blackheath in south-east London. Field hockey is the national sport of India and Pakistan.[
tennis ball article
A tennis ball is a ball designed for the sport of tennis, approximately 6.7 cm (2.7 in.) in diameter and is usually bright yellow-green, but in recreational play can be virtually any colour. Tennis balls are covered in a fibrous fluffy felt which modifies their aerodynamic properties.
Tennis balls must conform to certain criteria for size, weight, deformation, and bounce criteria to be approved for regulation play. The International Tennis Federation (ITF) defines the official diameter as 65.41-68.58 mm (2.575-2.700 inches). Balls must weigh between 56.0g and 59.4g (1.975-2.095 ounces). Yellow and white are the only colours approved by the United States Tennis Association (USTA) and ITF, and most balls produced are fluorescent yellow (known as "optic yellow") the colour first being introduced in 1972 following research demonstrating they were more visible on television. Tennis balls are filled with air and are surfaced by a uniform felt- covered rubber compound. The felt traps the air flow boundary layer which reduces aerodynamic drag and gives the ball better flight properties. Tennis balls begin to lose their bounce as soon as the tennis ball can is opened and can be tested to determine their bounce. A ball is tested for bounce by dropping it from a height of 100 inches (2.54 m) onto concrete; a bounce between 53 and 58 inches (1.3462 - 1.4732 m) is acceptable (if taking place at sea-level and 20°C / 68°F; high-altitude balls have different characteristics when tested at sea-level). Modern regulation tennis balls are kept under pressure (approximately two atmospheres) until initially used.
Tennis balls must conform to certain criteria for size, weight, deformation, and bounce criteria to be approved for regulation play. The International Tennis Federation (ITF) defines the official diameter as 65.41-68.58 mm (2.575-2.700 inches). Balls must weigh between 56.0g and 59.4g (1.975-2.095 ounces). Yellow and white are the only colours approved by the United States Tennis Association (USTA) and ITF, and most balls produced are fluorescent yellow (known as "optic yellow") the colour first being introduced in 1972 following research demonstrating they were more visible on television. Tennis balls are filled with air and are surfaced by a uniform felt- covered rubber compound. The felt traps the air flow boundary layer which reduces aerodynamic drag and gives the ball better flight properties. Tennis balls begin to lose their bounce as soon as the tennis ball can is opened and can be tested to determine their bounce. A ball is tested for bounce by dropping it from a height of 100 inches (2.54 m) onto concrete; a bounce between 53 and 58 inches (1.3462 - 1.4732 m) is acceptable (if taking place at sea-level and 20°C / 68°F; high-altitude balls have different characteristics when tested at sea-level). Modern regulation tennis balls are kept under pressure (approximately two atmospheres) until initially used.
Racing bicycle
A racing bicycle, also known as a road bike, is a bicycle designed for competitive road cycling, a sport governed by according to the rules of the Union Cycliste Internationale (UCI). The UCI rules were altered in 1934 to exclude recumbent bicycles.
The most important characteristics about a racing bicycle are its weight and stiffness[citation needed] which determine the efficiency at which the power from a rider's pedal strokes can be transferred to the drive-train and subsequently to its wheels. To this effect racing bicycles may sacrifice comfort for speed. The drop handlebars are positioned lower than the saddle in order to put the rider in a more aerodynamic posture. The front and back wheels are close together so the bicycle has quick handling. The derailleur gear ratios are closely-spaced so that the rider can pedal at his or her optimum cadence. Other racing bicycles, especially those used in time trialling prioritize aerodynamics over comfort.
Bicycles for racing on velodromes are track bicycles; bicycles for racing offroad are mountain bicycles, cyclo-cross bicycles or cycle speedway bicycles; bicycles that race according to the rules of the International Human Powered Vehicle Association include faired recumbent bicycles which, on flat ground, are the fastest bicycles in the world.[1][2][3][4] Recumbents were excluded from the UCI definition of a bicycle on 1 April 1934.
Time trial bicycles are a subset of racing bicycles that are designed for time trial events. The UCI rules for these bikes are slightly less prescriptive than those for "massed start road races".
Race bike components (excluding frame, fork, wheelset, bars, stem, pedals, saddle and seatpost) are collectively referred to as the groupset. The quality of the groupset determines how refined the bike feels, how much maintenance it requires, and contributes to the performance of the bike. The two major groupset manufacturers of complete groupsets for racing bicycles are Shimano and Campagnolo. In 2006 SRAM introduced their Force and Rival racing groupsets [1]. The companies have different design philosophies, and some cyclists have great brand loyalty for one or the other.
The most important characteristics about a racing bicycle are its weight and stiffness[citation needed] which determine the efficiency at which the power from a rider's pedal strokes can be transferred to the drive-train and subsequently to its wheels. To this effect racing bicycles may sacrifice comfort for speed. The drop handlebars are positioned lower than the saddle in order to put the rider in a more aerodynamic posture. The front and back wheels are close together so the bicycle has quick handling. The derailleur gear ratios are closely-spaced so that the rider can pedal at his or her optimum cadence. Other racing bicycles, especially those used in time trialling prioritize aerodynamics over comfort.
Bicycles for racing on velodromes are track bicycles; bicycles for racing offroad are mountain bicycles, cyclo-cross bicycles or cycle speedway bicycles; bicycles that race according to the rules of the International Human Powered Vehicle Association include faired recumbent bicycles which, on flat ground, are the fastest bicycles in the world.[1][2][3][4] Recumbents were excluded from the UCI definition of a bicycle on 1 April 1934.
Time trial bicycles are a subset of racing bicycles that are designed for time trial events. The UCI rules for these bikes are slightly less prescriptive than those for "massed start road races".
Race bike components (excluding frame, fork, wheelset, bars, stem, pedals, saddle and seatpost) are collectively referred to as the groupset. The quality of the groupset determines how refined the bike feels, how much maintenance it requires, and contributes to the performance of the bike. The two major groupset manufacturers of complete groupsets for racing bicycles are Shimano and Campagnolo. In 2006 SRAM introduced their Force and Rival racing groupsets [1]. The companies have different design philosophies, and some cyclists have great brand loyalty for one or the other.
basket ball
The fight broke out on court and suddenly, crowds were greeted to the site of Mark Cuban, owner of the Mavericks, rushing out into the fight. It was almost as if enlightenment hit Cuban just before he got into the melee. Cuban stopped short after suddenly realizing his lack of height and fighting ability amidst a court of well trained athletes who stood a few feet above him. Realizing that he was without his private jet, decided that punching these giants in their faces would be too much to ask of him. The fight probably stopped because everyone turned to Cuban and laughed. The fight broke out on court and suddenly, crowds were greeted to the site of Mark Cuban, owner of the Mavericks, rushing out into the fight. It was almost as if enlightenment hit Cuban just before he got into the melee. Cuban stopped short after suddenly realizing his lack of height and fighting ability amidst a court of well trained athletes who stood a few feet above him. Realizing that he was without his private jet, decided that punching these giants in their faces would be too much to ask of him. The fight probably stopped because everyone turned to Cuban and laughed.
football article
Football has become a phenomenon in the United States. In addition to the players there are cheerleaders, mascots, bands and crazed fans in the stands. The country is littered with football stadiums that exceed 100,000 seats. Football’s popularity has grown so much that there are now a number of Arena Football Leagues scattered across the country that play during the NFL off-season. The NFL currently attracts more fans on average than any other sporting league in the world. Regular season games regularly attract over 67,000 fans.
Post-season football games attract far more fans. In fact, post-season football has taken on a life of its own, especially on the college level. There are now 32 College Bowl games that follow the NCAA football regular season. The hype begins when the season ends and builds until the Bowl Championship Series. The host cities roll out the red carpet for the fans and teams with parades and other events prior to the games themselves. The BCS Championship game rotates amongst the Rose, Sugar, Fiesta, and Orange Bowls.
The NFL Playoffs don’t have as much pageantry as the college football bowl season, but the fans are no less excited. The NFL Playoffs are some of the hardest tickets to find all year. The Super Bowl might be the biggest sporting event of the year. With Coast to Coast Tickets there is no need to worry. Coast to Coast has tickets to the biggest football games of the year; NFL, NCAA, CFL, or AFL.
While Coast to Coast is proud to offer the best selection and least expensive tickets for all of the football games you’d like to see; we are also extremely proud of our customer service. Our trained staff is equipped with all of the information to make your decision easier. We can provide you with schedules, stadium seating charts, variety of prices, and driving directions
Post-season football games attract far more fans. In fact, post-season football has taken on a life of its own, especially on the college level. There are now 32 College Bowl games that follow the NCAA football regular season. The hype begins when the season ends and builds until the Bowl Championship Series. The host cities roll out the red carpet for the fans and teams with parades and other events prior to the games themselves. The BCS Championship game rotates amongst the Rose, Sugar, Fiesta, and Orange Bowls.
The NFL Playoffs don’t have as much pageantry as the college football bowl season, but the fans are no less excited. The NFL Playoffs are some of the hardest tickets to find all year. The Super Bowl might be the biggest sporting event of the year. With Coast to Coast Tickets there is no need to worry. Coast to Coast has tickets to the biggest football games of the year; NFL, NCAA, CFL, or AFL.
While Coast to Coast is proud to offer the best selection and least expensive tickets for all of the football games you’d like to see; we are also extremely proud of our customer service. Our trained staff is equipped with all of the information to make your decision easier. We can provide you with schedules, stadium seating charts, variety of prices, and driving directions
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