What is basketball made of? Who invented it? Which country did it originate from? Great gods, help!

189 1 year, young naismith became a physical education teacher at the YMCA Training College (now Springfield College) in Massachusetts in the northeastern United States. Halsey Gulick, the school's superintendent, asked naismith to invent an attractive, easy-to-learn and easy-to-play sport that can be played in a gymnasium with artificial light in winter. The northeastern United States has a long winter and cold weather, and there are not many sports for students to entertain. Softball, rugby, hockey and football are basically outdoor sports. Lack of physical exercise, idle students often make trouble, which adds a lot of trouble to the school. With the help of Baup stebbins, the school janitor, naismith erected a pole and sewed a basketball. In order to provide students with laws to follow when playing basketball, naismith and Miss Lyons, the secretary of the school, made the 13 rules about the game. This is the original rule of basketball game. With the approval of the school, naismith organized the first basketball match in the world. Later, naismith recalled the scene of the competition and said, "There are 18 students in this class, and all the students have to take part in the competition. I chose two captains, one on each side. Then I let the players in. Each team has three forwards, three centers and three defenders. I chose two centers to jump the ball, and then I threw the basketball among them. The first basketball game in the world began. Since then, this class is no longer noisy. Basketball games have become an important entertainment activity for the whole class. " Basketball invented by naismith was an immediate success. Within a few weeks, basketball quickly spread all over the university campuses in the northeast of the United States and spread all over the United States through the network of YMCA. Naismith, who participated in the Olympic Games, has long hoped to live a leisurely retirement life. However, at the age of 55, naismith was invited to be a pastor of the Kansas National Guard and took part in the war with Mexico. During this period, the ingenious naismith invented the rugby player's helmet. Naismith didn't get any economic benefit from the invention of basketball. 1936 was invited to participate in the Berlin Olympic Games to watch the men's basketball competition that was included in the Olympic Games for the first time and awarded medals. However, the next year, naismith passed away. However, his invention has become the most popular sport in the world. American professional basketball games are also gradually moving towards the whole United States and the world. [Basketball] Mr. A.G.Spaling, the founder of Spalding, the world's best basketball brand, features basketball lining: Spalding only uses special imported raw rubber, which is the same as the high-end car tire lining. Through strict patented technology, the bounce is soft and stable, which is the internal source of Spalding's unique and delicate feel. Yarn winding: Spalding only uses special nylon yarn with very good flexibility, which is evenly wound by precision machines, and the length can reach 2 kilometers, which makes the bounce of basketball rich in texture, the flight and rotation of the ball are stable and accurate when shooting, and it will make the ball firm and difficult to deform. Leather: All genuine Spalding basketballs are made of leather specially supplied by professional manufacturers. For example, both ZIO and ZIO have Spalding patented technology, which has the advantages of anti-slip, wear resistance and absorbing Han. In order to meet different venue requirements and customers' feel habits, Spalding has provided a variety of basketball series with different materials for fans to choose from. Handle: Spalding basketball has excellent comprehensive handle. It has been established for 130 years and contains many legends. NBA superstars give it a unique feel with mystery and trust. Even when they make free throws at the crucial moment of the game, they are very particular about the direction and position of the LOGO on basketball, which must not be changed. The difference between Spalding basketball and ordinary basketball is 1. Inner container: Spalding basketball adopts special butyl rubber inner container, and the raw material is imported raw rubber, which has high purity, less impurities and stable performance. Through the treatment of patented technology and the use of special additives, this kind of liner has unique rebound flexibility and good air tightness. This is the same material as the inner lining of advanced automobile tires. After strict patented technology processing, the bounce is soft and stable, which is the internal source of Spalding basketball's unique and delicate feel. 2. Yarn winding: Spalding only uses special nylon yarn with very good flexibility, which is evenly wound by a precision machine, with a length of 2km, so that the bouncing of basketball is rich in texture, the flying and rotation of the ball are stable and accurate when shooting, and the ball is firm and difficult to deform. ① The yarn winding process adopts specially modified equipment to ensure the accuracy and uniformity of yarn winding angle change; ② Imported high-density nylon wires must be used instead of PE wires to ensure the firmness and toughness of the winding layer; ③ Glue used in yarn winding is also an important link to ensure the quality of finished products. We only use special glue prepared by patented technology. (4) Through long-term practice, we also adopt different winding lengths according to the characteristics of different balls and their use environment, and strive to make each basketball show the best use effect, but the total winding number is controlled between 2200 and 2400. 3. Leather: All genuine Spalding basketballs are made of leather specially supplied by professional manufacturers. For example, both ZIO and ZIO have Spalding patented technology, which has the advantages of anti-slip, wear resistance and absorbing Han. In order to meet different venue requirements and customers' feel habits, Spalding has provided a variety of basketball series with different materials for fans to choose from. Skin: ① Cowhide: provided by the world-famous leather manufacturer Ganason, the first layer of natural skin on the back of cattle is selected and used to manufacture the top products of Spalding brand basketball series. Spalding basketball emphasizes the touch of ball control, the skin is not sticky when it meets sweat, and the bounce is soft and moderate, which is easy to control. However, it is expensive and difficult to maintain. Only used for indoor wood floors, usually used for professional competitions. This basketball is currently used in NBA professional leagues in the United States. ② ZK superfine fiber: a synthetic material containing "Spalding" patented ingredients. Compared with natural leather, it has the advantages of delicate feel, sweat absorption and anti-slip, wear resistance and mildew resistance, and easy maintenance. Basketball made of it is usually used by professional teams for training and competition. At present, this kind of basketball made of ZK microfiber is used in the official competition of CBA Men's Basketball League and the training of teams in China. ③ PU synthetic leather: With the strengthening of people's awareness of environmental protection, PU synthetic leather is a new material to replace traditional natural cowhide products. Basketball made of it has the advantages of waterproof, wear-resistant, mildew-proof and suitable for indoor and outdoor use. Although it is also called PU synthetic leather, there are many kinds and grades on the market. In order to ensure product quality and prevent counterfeiting, only special PU synthetic leather materials provided by Yantai Leather Factory, the largest leather factory in China, are used. ④ PVC synthetic leather: Although it is slightly inferior to PU synthetic leather in hand feel and low temperature resistance, it is superior to PU synthetic leather in water resistance, wear resistance, mildew resistance and salt and alkali resistance, and it has a price advantage and is economical. It is a very good skin material for indoor and outdoor basketball. Only special PVC synthetic leather materials provided by imported and domestic professional leather factories are used. ⑤ Synthetic rubber: "Spalding" has a patented double-layer synthetic rubber production process, which has leather-like feel and excellent waterproof, wear-resistant, mildew-proof and salt-alkali resistance, and is the best outdoor popular basketball leather material. Through traditional technology, high-quality Spalding synthetic rubber basketball has changed people's one-sided view that rubber basketball is a low-grade inferior ball. 4. Tire: The manufacturing process of the intermediate tire between the inner bladder and the outer skin plays an important role in the overall performance of basketball. Spalding's special manufacturing technology of middle tire makes the middle tire play a good role in control, support and transition. 5. Ball nozzle: Different from other kinds of balls, it has a unique structure and assembly method, and has the advantages of air leakage prevention, waterproof and replaceable. 6. Feel: Spalding's basketball has excellent comprehensive feel. It has been established for 130 years and contains many legends. NBA superstars give it a unique feel with mystery and trust. Even when they make free throws at the crucial moment of the game, they are very particular about the direction and position of the LOGO on basketball, which must not be changed.