evaluating

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In autumn and winter, of course, golfers are most concerned aboutBadminton has become unbearable.What to do! Compared withEndure steaming ballsThe flight drop orA sharp increase in ball feesThe pain,Choosing a more suitable badminton is king!

So,How to choose badminton?As long as it is resistant to beating in winter? What about flying, feeling and stability? Of course, there is also the price!

Tested8 brands and 24 badminton modelsLater, we found that:YY, Victory, RSLAnd other common brands have individual models.Pujie. What is the reason? Come with salted fish and use it.Scientific method+real person experimentLet’s test it!

catalogue

/What are the performance parameters of badminton? /

/evaluation options/

/Evaluation Dimension & Evaluation Method/

/evaluation results/

/buying instructions/

  • First choice
  • Cost-effective choice
  • You can try.

/Conclusion/

About the initial motion evaluation room

Simply put, we are a group.Super keen on badmintonPeople, hoping toScientific evaluationMeans to choose the most suitable equipment for you who also love badminton.

Solemn statement All large-scale, multi-product comparative evaluation reports of the initial sports evaluation room areIndependent production,Did not cooperate with any brands or businesses.Committed to objectively and neutrally solving doubts for badminton lovers on the way to playing and burning equipment.

What are the performance parameters of badminton?
Badminton is composed of wool, ball head, coil and glue, and the intuitive manifestation can be mainly divided intoFour parameters

  • Flight trajectory:Whether the flying parabola conforms to most people’s hitting habits (whether it will be too blunt or sudden stop).
  • Flight stability:Whether the ball can maintain a unified and stable flight attitude when it stays in the air.
  • Hitting feel:Whether the feedback on the player’s hand is simple and clear when hitting.
  • Hitting resistance:Within an acceptable range, badminton can maintain the ability (duration) of the first three performance experiences.

Evaluation and selection
We have chosen8 brands and 24 badminton modelsMost of them are well-known brands.

From three comprehensive brandsYY, Li Ning, Victory, to well-known ball brandsRSLAnd then to the rookie brand.Ogarin, Kawasaki, WeiconWait; And offline niche brands.BaishengAlso, it was selected as the selection for this evaluation because it was used in many amateur competitions and ball groups around.

The following evaluation optionsAll as consumers,Buy from a reliable source, do not accept samples sent by brands.

Evaluation dimension & evaluation method

The evaluation dimensions of this badminton are:
Performance experience dimension:Flight trajectory, flight stability, hitting feel;

Performance maintenance dimension:Hitting resistance.

Test environment:Location: Guangzhou/Temperature: 16℃/ Humidity: 22/ Ball speed: 77.

Flight path

Adjust the angle of high and long ball with the server, and record the flight trajectory of badminton with a high-speed camera.

Keep the position, angle and strength of the server unchanged, and randomly select 3 balls from each of the 24 balls to test and record them one by one.

After post-processing the material, a visual flight trajectory map is obtained.

Analyze the flight trajectories of several top-class badminton, and get an optimal flight curve by taking the average value.

The curve of each ball is compared with the optimal curve in the first, middle and last stages, and scored according to the deviation. The lower the deviation, the higher the score. (out of 10)

Flight stability

Flight stability includes:wind tunnel testsandActual combat test.

Flight stability score = wind tunnel test score+actual combat test score

We made a simple wind tunnel with air duct+badminton hand glue+carton, which can simulate the stable state of badminton during flight.


We made a simple wind tunnel to simulate the stable state of badminton during flight.

Observe the rotation of the ball head and badminton through wind tunnel simulation. When the center of gravity, balance and roundness of badminton are not good enough, there will be unstable performance.

Through the observation and recording in the actual hitting process, the actual combat score of flight stability is obtained.

Hitting feel

For the hitting feel items that can only be experienced directly by real people, we invited three golfers of different ages to try each ball and score its hitting feel.

Although the ball is different in age and level. But also have their own feelings.

Hitting resistance

Finally, it is the hardest part of our test.

We try to hit 24 kinds of balls high and far, and record the state of the ball every 20 beats, and record the state of the ball in different States, such as starting to shake, starting to slow down, breaking hair, and finally eliminating.Beat countAnd take photos to record the state of the ball.

We try to hit 24 kinds of balls high and far, and record the state of the ball every 20 beats.

Take photos to record the state of the ball at different times of hitting.

Evaluation results

Performance-price ratio formula of initial badminton

Cost performance score = (total performance score * hit resistance score)/market price

Total performance score = flight trajectory score x0.4+ flight stability score x0.4+ hitting feel score x0.2.

The evaluation results of 24 badminton models are as follows:

Purchase instruction

In order to make everyonemake pointed referencesChoose the one that suits you best, and we have made several purchase suggestions for you. Because everyone has different needs and preferences for flying, fighting resistance and cost performance, please adopt it as appropriate.

(95 yuan and goose feather ball with a price of 115 yuan have obvious advantages over duck feather ball in terms of stable performance and durability, so they are better choices for playing in autumn and winter).

(75 yuan’s price, duck and duck’s generous wool film, the performance and beating resistance are above average, and the cost performance is higher)

(The comprehensive performance is relatively ideal, and friends who like it can give it a try.)

The End

Heavy tip First move to WeChat official account "Equipment evaluation"column will be launched.Badminton scoring list, constantly update the high-quality badminton styles on the market,Welcome friends to recommend.Good at playing high-quality badminton brands and models, and we will give you a satisfactory answer.

How many swimming positions are there in swimming?

Everyone knows that swimming is very good for people’s health, and many people are keen on swimming now, so in this case, everyone has done some research on swimming. Many people are looking for their favorite postures when swimming in school, but they don’t know much about the specific and separable postures. Here are some specific introductions about swimming.

freestyle

One of the swimming events. In 1896, the first Olympic Games began to be listed as an official event. Freestyle is not limited by any posture, crawl is the fastest, and crawl has become the only posture of freestyle. Crawling is like crawling, that is, paddling with both arms alternately and kicking with both legs alternately. This kind of swimming posture has reasonable structure, small resistance and even speed, and it is the fastest and most labor-saving swimming posture in the world at present.

The basic technical characteristics of freestyle are that the human body is prone in the water, with its head and shoulders slightly higher than the water surface. When swimming in, the trunk rolls around the longitudinal axis of the body appropriately, and the arms take turns paddling to push the body forward. After the hand enters the water, the paddling route is S-shaped, and the breathing and paddling movements are coordinated. When the arm paddles hard, use the water flow to inhale in the valleys formed on both sides of the head.

breaststroke

Breaststroke is an ancient swimming style. According to records, as early as 2000 ~ 4000 years ago, China, Rome and ancient Egypt had similar swimming styles. On August 24th, 1875, the famous swimmer M Webb swam across the English Channel in breaststroke, which lasted for 21 hours and 45 minutes. In the early 19th century, breaststroke was the first position adopted in swimming competitions. However, due to the slow speed of breaststroke, there are fewer and fewer people who swim sideways, crawl and use breaststroke in the competition. It was not until the third Olympic Games in 1904 that breaststroke was separated from other postures.

butterfly stroke

During the period from 1924 to 1936, the biggest innovation of breaststroke was that after the stroke, the arms were no longer moved forward from the water, but the arms were moved from the air but the legs were still clamped by breaststroke, and the deformation of breaststroke-butterfly stroke appeared. In butterfly swimming, the body lies prone in the water, and relies on the powerful strokes of the arms and the wavy strokes of the legs to push the body forward. There is no fixed body posture.

backstroke

One of the swimming events. In 1900, the 2nd Olympic Games began to be listed as an official event. Backstroke includes backstroke and crawl backstroke. Reverse breaststroke is the earliest backstroke, which is similar to breaststroke in action and opposite in body posture. That is, the human body lies on its back on the water, and its arms paddle backwards from the head to the side. In the first few Olympic Games, the backstroke was held in an anti-breaststroke position. When backstroke, the body lies almost horizontally in the water, the chest naturally stretches in line with the abdomen, the head is submerged in the water, and the face is exposed to the water. When swimming in, the head always maintains an upright posture, and the trunk naturally rotates around the longitudinal axis due to the alternate paddling action of the two arms.

How many swimming positions are there in swimming? Different postures in swimming bring different exercises to different parts of people’s bodies, because everyone knows that swimming can exercise all parts of people’s bodies, so swimming is very good for everyone to exercise healthily.

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Understanding the world’s most magical sports "football"

Original title: Read the most magical sports "Football" in the world.

Football is the most magical sport in the world today. During the World Cup alone, the number of spectators reached 10 billion, and it is recognized as the largest sport in the world. Among them, there are about 100,000 professional athletes, 40 million registered athletes, and 2.8 billion football fans around the world. According to incomplete statistics, there are about 800,000 teams that often participate in the competition in the world, and the number of people engaged in the football industry worldwide reaches 100 million, which has a worldwide influence.

Football is an ancient sports activity, which originated from an ancient ball game "Cuju" in China. In July 1958, when Dr. Havelange, former president of FIFA, came to China, he said: Football originated in China. Therefore, the hometown of football is China, and modern football originated in Britain. It was Rabe who spread to Europe in China and developed into modern football. Modern football has become the most popular sport in the world.

Kings of the past dynasties

On March 16th, 2002, Pele visited China. Entrusted by China Tourism Administration, Professor Liu Bingguo, a sports history scholar of Xuzhou Normal University, arranged a cuju performance in Han Dynasty for Mr. Bailey at the foot of the Great Wall, which aroused great interest of Mr. Bailey. On the spot, he joined the "performance" with Mr. milutinovic, the former head coach of China football team.

In 2017, Messi came to China for the first time in his own name. It has been six years since then, when he was the captain of Barcelona. Earlier, Messi just announced that he would join the Miami International Team of the American Professional League and officially bid farewell to the European League.

Editor in charge:

Jing Wong snarled netizens for being uneducated online! Supported the new play, and once scolded many artists in the circle.

This article is edited by Spoiler Club: Star Search

Unauthorized reprinting is strictly prohibited, and plagiarism will be complained by the whole network if found.

Jing Wong, the director, is well-known in the circle. He once created many classic comedy films with Stephen Chow, and he also exported many classic films, which won a lot of popularity among artists.

Nowadays, Jing Wong is often invited to participate in activities and share his experience.

However, an activity he attended recently caused a heated discussion. It was related to that he was invited to attend the premiere of the new mainland play "Parrot Kill" and interacted with a number of actors on the spot. Later, he also sent Weibo to promote the new film.

However, some netizens also went to the scene, and even took some photos of the scene, and left a message under Wang Jingfa’s Weibo saying that this movie is not good at all.

Jing Wong immediately replied to this netizen, saying that this kind of person just has a bad heart. Not everyone can understand literary films, and it’s terrible to have no culture.

Jing Wong exchanged curses with netizens on the Internet, which caused a heated discussion on the Internet.

In fact, it’s not the first time that director Jing Wong has exchanged curses with netizens on the Internet. Earlier, artist Li Wanhua publicly criticized Jing Wong’s new play when it was broadcast live on the Internet, which was simply explicit and bad for children.

Jing Wong is not used to this. She immediately countered that Li Wanhua is a washed-up actress, which means that she is the worst performer in TVB. In this way, Jing Wong and Li Wanhua caused a scolding battle on the Internet.

In addition, Jing Wong also criticized the mainland producer Yu Zheng, who has produced many dramas, winning over Zhao Liying, Wu Jinyan and others.

However, earlier on, Jing Wong was accused by Weibo, and most of them chose people with no acting skills as the leading roles.

When I was interviewed by Yu Zheng, I felt very puzzled. Yu Zheng admitted that he had casting, and there might be some shortcomings, but he didn’t really know Jing Wong, and I don’t know why Wang Jing targeted himself like this.

Jing Wong, the director, is a real person. As long as he sees something that is unreasonable, he will speak and express his thoughts directly on the Internet, which may lead to a constant battle of abuse with others.

Anyway, Jing Wong has contributed many classic characters to Hong Kong films, leaving many unforgettable moments for the audience. His contribution and position are obvious to all. We also expect him to continue to bring more good film works to the audience.

Xinjiang men’s basketball team showdown! The reason why qi zhou left the team was exposed, and the team of brokers behind it sought huge profits

In an interview, qi zhou also bluntly said that I would treat every training as the last time in my life, and I would try my best to keep myself competitive at all times. Now he has wasted two years of his career peak and he is sure to achieve his goal in the next competition. However, the real reason why qi zhou wants to leave the Xinjiang team recently has been exposed by the media. According to informed sources, they have to pay a high signing fee to play in Xinjiang team, and their players’ usual personal expenses are much higher than those of other clubs. qi zhou and other players are very dissatisfied, but only qi zhou stood up and resisted, but they were suppressed by the club.

The second vertical racing competition in Xihu District of Hangzhou started.

Recently, the second vertical racing competition in Xihu District of Hangzhou started in EAC Europe and America Center. The theme of this competition is "Dedicated to the Asian Games", which aims to enrich the amateur cultural and sports life of building workers in Xihu District, show the healthy style of residents in Xihu District, and welcome the arrival of the Hangzhou Asian Games.

Vertical racing takes the stairs of high-rise buildings as the runway, which is a new urban fitness sport. The race runs from the starting point on the first floor to the end point on the top floor of the building, and an effective timing technology system is adopted. In the competition, participants can not only experience the pleasure of climbing mountains, but also reduce the influence of the weather.

It is understood that about 100 people participated in this competition, and the players on the scene were divided into groups of men and women, and finally the third runner-up was decided. Wang Yong, a contestant, said: "Vertical racing is a very interesting sport, which not only tests your physical fitness, but also requires good coordination and psychological quality." "I experienced the fun of competition and realized that I still have a lot to improve in training and preparation." Contestant Zhang Jianhua said. (Yang Ling/graphic)