悠悠球介绍
悠悠球(YO-YO) 并非一个令人陌生的词眼，史书的最早记录出现在公元500年前的希腊;相传16世纪，菲律宾的狩猎民族在狩猎和格斗使用的器具中，在绳子的前端挂着重物似悠悠的武器，据悉这是悠悠的起源。
大约300年前，悠悠传到了日本，被形象地叫作“独轮车”或“钱轮”，深受年轻人的欢迎。
18世纪初叶，悠悠在英国以“王子财宝”、在法国以“诺尔曼悠悠”之名广为流行，尤其是在法国和英国的上流社会盛行。
此后，这种玩具和“悠悠”的名字从法国流传到世界各地。
悠悠球分为几种
现在YO-YO的主流玩法有5种，以下将会一一介绍 这5种本别是： A 2A 3A 4A 5A A —— 这种玩法占有最多的玩家，是用单手去玩线上花式，变法万千，相对比较容易上手。
2A —— 这种玩法是需要双手去玩，主要以回转花式为主。
普遍认为2A的观赏性最高，但难度系数高，招式有限。
3A —— 这种玩法也是需要双手，但不同的是3A是双手线上花式，难道系数高，招式相对丰富。
4A —— 离绳玩法，怎么离绳呢
绳头不绑在轴承上，就这样缠绕 YO-YO先脱离绳子再回到线上，再作出不同的花式，有点类似空竹，4A也可以叫Offstring。
5A —— 以前叫做Freehand，创自YO-YO Master:Steve Brown，把一个重物（重物大概与YO-YO重量比为1:7）栓在绳子末端，而不用绑在系在手上，手并没受到束缚，也以线上花式为主，变化也很多，现在把Freehand改成叫Counter Weight
介绍个悠悠球
The History of the Yo-YoD.F. Duncan Sr. was the co-patent holder of a four-wheel hydraulic automobile brake and the marketer of the first successful parking meter. He was also the genius behind the first premium incentive where you sent in two cereal box tops and received a toy rocket ship. However, Duncan is best known for being responsible for promoting the first great yo-yo fad in the United States. Duncan was not the inventor of the yo-yo; they have been around for over twenty-five hundred years. In fact the yo-yo is considered the second oldest toy in history, the oldest being the doll. In ancient Greece, the toy was made of wood, metal and terra cotta. The Greeks decorated the two halves of the yo-y with pictures of their gods. As a right of passage into adulthood Greek children often gave up their toys and placed them on the family alter to pay homage. Around 1800, the yo-yo moved into Europe from the Orient. The British called the yo-yo the bandalore, quiz or the Prince of Wales toy. The French used the name incroyable or l'emigrette. The word yo-yo is a Tagalog word, the native language of the Philippines, and means 'come back.' In the Philippines, the yo-yo was a weapon for over 400 hundred years. Their version was large with sharp edges and studs and attached to thick twenty-foot ropes for flinging at enemies or prey. People in the United States started playing with the British bandalore or yo-yo in the 1860s. It was not until the 1920s that Americans first heard the word yo-yo. Pedro Flores, a Philippine immigrant, began manufacturing a toy labeled with that name. Flores became the first person to mass-produce yo-yos, at his small toy factory located in California. Duncan saw the toy, liked it, bought the rights from Flores in 1929 and then trademarked the name Yo-Yo ®. Duncan's contribution to yo-yo technology was the slip string, consisting of a sliding loop around the axle instead of a knot. With this revolutionary improvement, the yo-yo 'slept' for the first time. The original yo-yo shape, first introduced to the United States was the imperial or standard shape. The Duncan Yo-Yo introduced the butterfly shape, a design that reverses the halves of a traditional imperial yo-yo. The butterfly allows the player to catch the yo-yo on the string easily, good for certain tricks. Both the imperial and the butterfly designs co-exist today. Duncan also worked out a deal with newspaper tycoon William Randolph Hearst to get free advertising in Heart's newspapers. In exchange, Duncan held competitions and the entrants were required to bring a quantity of new subscriptions for the newspaper as their entry fee. The first Duncan Yo-Yo was the O-Boy Yo-Yo Top, the toy with a big kick for all ages. Duncan's massive factory produced 3,600 of the toys every hour making the factory's hometown of Luck, Wisconsin the 'Yo-Yo Capital of the World.' Duncan's early media blitzes were so successful that in Philadelphia alone, three million units sold during a month-long campaign in 1931. In general, yo-yo sales went up and down as often as the toy. One story tells how after a market dip in the 1930's the Lego company was stuck with a huge inventory, they salvaged the unsold toys by sawing each yo-yo in half, using them as wheels on toy trucks and cars. Yo-yo sales reached its highest peak in 1962, when Duncan Yo-Yo sold 45 million units. Unfortunately, this 1962 hike in sales led to the end of Donald Duncan's Company. Advertising and production costs far outstripped even the sudden increase in sales revenues. Since 1936, Duncan experimented with parking meters as a sideline. Over the years, the parking meter division grew to become Duncan's main moneymaker. This and bankruptcy made it easier for Duncan to finally cut the strings and sell his interest in the yo-yo.The Flambeau Plastic Company bought the name 'Duncan' and all the company's trademarks, they began producing their line of all plastic yo-yos soon after. The yo-yo continues today, its latest honor is being the first toy in outer space.
既有历史又是说明性文章的介绍悠悠球作文400字
悠悠球，一个大家并不陌生的字眼。
16世纪，菲律宾的狩猎民族在狩猎和格斗时使用一种武器，即在绳子前端挂着重物，用它来伤害对方，渐渐演变成今天的悠悠球。
悠悠球根据基本构造的不同，可以分为三大类，不同的类型有不同的性能，适合各种各样的玩法。
整体型：此类适合初学者，因为它的结构最简单，整体不能拆开，反弹时间快，多用于环状玩法。
轴承型：此型包括木质、尼龙、滚珠三种轴承，整体可拆分，绳子套在轴承上，能够长时间空转。
多用于绳子玩法和睡眠，适合中、高级选手使用。
离合器型：其最大特点就是能实现悠悠的自动复归，这些都是通过离合器的张开和闭合来进行的。
悠悠球不是普通的玩具，它有很多使用技巧，像绳子的长度就有一定的讲究，悠悠球的绳子太长太短都不能很好地操纵，新买回来的一般稍长，使用前必须调整。
首先，将悠悠球悬垂到地面，在高于肚脐10cm处将绳剪断，这个长度便是最适合你的。
当然绳子的装法，系结方法还有卷法都有科学性，不能随意地将就一下就完了，否则会影响玩者的发挥。
悠悠球的特技玩法无论怎样变化，都归结为三大类，其一睡眠法，即让绳子处于空转状态；其二环状法，悠悠本体划出一个圆的轨迹；其三绳子玩法，悠悠在“睡眠”时，用绳子做出各种图形。
将前二个基本动作学好，你就可以创新出更多的第三种花样玩法，像遛狗，魔术球，环球旅行，巴黎铁塔等。
悠悠球的日常保养也极为重要，主要是清洁和上油。
作为一种体育运动，悠悠球早已风靡欧美、日本，它像普通的体育运动一样，需要平时努力练习，并通过比赛来提高自己的技术。
别看一个小小的悠悠球，却给大家带来了无穷无尽的乐趣
