The 2023 FISU Football World Cup ended and Beijing Normal University won the women’s team championship.

People’s Daily Online, Beijing, November 1 (Reporter Yang Lei) On October 31, the 2023 FISU Football World Cup ended in Jinjiang, Fujian. Beijing Normal University beat paulista University of Brazil in the women’s final and won the championship, while paulista University men’s soccer team won the men’s championship.

On the afternoon of October 31st, the battle for the women’s championship of the 2023 FIFA World Cup in Jinjiang was held at the training ground of Jinjiang Football Center. The team of Beijing Normal University, which represented China, played against the team of paulista University in Brazil, and the two sides fought for 120 minutes and drew 2:2. In the final penalty shootout, Beijing Normal University won the championship with a total score of 7:6.

"Today, we made full preparations for playing for 120 minutes and presented a very wonderful game to everyone. It is our honor to stand on the highest podium again after 12 years. " Bi Yan, former China international and head coach of Beijing Normal University, said after the game.

At the 2011 Shenzhen Universiade, Bi Yan helped the Beijing Normal University women’s football team win the championship by beating the Japanese team 2-1. Twelve years later, as the head coach, she led the team to the highest podium in the world college football again.

In the men’s final, paulista University of Brazil beat the Ukrainian National University of Economics and Business men’s soccer team 7-6 in a penalty shootout and won the championship. Hohai University’s men’s soccer team, representing China, created the best result of China University’s men’s soccer team in the FIBA World Cup, and finally won the eighth place.

All anxious, all chaotic, China football to the dog eat dog bone moment.

As a commentator, Mr. Huang appeared on XXTV-5 in the early 1990s, and Huang and Liu and Zhang Sanjianke created the column of World Football, which made us look forward to every Monday when we were studying in Beijing. My last impression was that I co-hosted the 2002 Japan-Korea World Cup with Shen Bing in 2002.

Later, it is said that he joined the media and became the online celebrity of football. With his football level, he should be able to dominate one side, and entertainment football can flourish off the court. Should be blessed, although the age difference is not big, but after all, watching his program has a beard.

Another master’s corner, I really don’t know. I know it by chance because of a technical term of "protective response" That is, online celebrity, who wears sunglasses and bobs his head to catch and scold anyone on the Internet, is said to know the way and know the king better than the beautiful country and Sichuan.

Because of the big sunglasses, I knew that I had a football teenager. Frankly speaking, we are not football professionals. Although big sunglasses preached everywhere that he was engaged in youth training, we always felt that it was at best a football training class and an off-campus training class.

It seems that the relationship between the two is not bad, and they have been entertaining to death, and they are also connected to each other live. I don’t know about it recently, maybe Mr. Huang has seen through the scam; Perhaps the head of the new Football Association named the big sunglasses, and Mr. Huang wanted to raise his arms and shout for the sake of his inner conscience.

Mr. Huang finally decided that junior football is a performance class in online celebrity. Zhan Yan, it’s worse than us, and we also evaluate it as teaching and training.

Big sunglasses know the king, how can you stop? Come on, bully me, no way. Although we are not studying literature, we are studying inorganic materials. We’re not subtle. What do you think you came from? Leave that station, you’re nothing, and you’re a bitch.

Football in China, what is this situation? In a rural phrase, that is: dogs eat dog bones.

China football, when can you get clean and let a certain line really "do it"?

This time, I am optimistic about Mr. Huang, just because I follow my heart and my heart.

Lose face! The first goal of the new president of the Football Association was ruined, and China Football took the Korean team to the end.

China’s football is once again in the doldrums. This time, the defeat comes from the women’s Asian qualifiers of the Paris Olympic Games. This is a very disappointing failure for players, coaches, fans and officials of China football. The first Paris Olympic Women’s Asian Regional Qualifier attracted the attention of many fans, but the final outcome dashed the dream of China women’s football team.

Paris Olympic Games is one of the biggest sports events in the world. It is held every four years and attracts athletes and teams from all over the world. Football is one of the important events in the Olympic Games, and it is the dream of every women’s football team to qualify for the Olympic Games on behalf of the national women’s football team. Therefore, the women’s Asian qualifiers for the Paris Olympic Games are of great significance to the participating national teams. However, the defeat of the women’s football team in China is not only a game defeat, but also exposes the deep-seated problems and challenges faced by the football team in China. Let’s discuss the reasons for this setback, the difficulties faced by China women’s football team and the future prospect of China football.

Looking back on the history of women’s football in China, we can see the glory of this team. China women’s football team won many honors in international football in 1990s and early 21st century. In 1986, 1989, 1991, 1993, 1995, 1997 and 1999, the women’s Asian Cup won seven consecutive championships; In 1990, 1994 and 1998, the women’s football team won three consecutive championships in the Asian Games; Runner-up in the 3rd Women’s World Cup in 1999. In 2006, she won the women’s Asian Cup again. They won the runner-up in the 1999 Women’s World Cup and the silver medal in the 1996 Atlanta Olympic Games. These achievements have made China women’s football team the pride of domestic sports, and also inspired generations of girls’ football dreams.

However, in recent years, the competitiveness of women’s football in China has gradually declined. Their performance in the international arena is not as good as before, and they gradually lost their former glory. Before the women’s Asian regional qualifiers of the Paris Olympic Games, China women’s football team had not performed well in the 2019 Women’s World Cup and failed to enter the quarter-finals. This has caused concern about the decline in the competitiveness of women’s football in China.

After Song Kai, the new president of China Football Association, took office, his first goal was to ensure that China women’s football team could successfully advance to the Paris Olympic Games. Song Kai has taken a series of measures, including strengthening the leadership, improving the quality of training, and formulating clear tasks. He made it clear that the success of the women’s football team in China is very important for the football team in China, and the Asian women’s football qualifiers of the Paris Olympic Games are the key for them to achieve this goal.

However, Song Kai’s first task after taking office ended in failure. This defeat is undoubtedly a heavy blow to him personally, and it also challenges his leadership position. As soon as he started to reform China football, he was confronted with such a great setback, which posed serious problems for his leadership and reform plan.

The lineup and competitiveness of China women’s football team

China women’s football team has always been the focus of attention. Their players have shown excellent personal abilities in the international arena, but the overall strength of the team has not reached the highest level. This setback makes people wonder whether China women’s football team needs more young blood and fresh strength to enhance the overall competitiveness of the team.

The frustration of China women’s football team also makes people think about the management and guidance of the coaching staff. On the field, at the management level, whether the coaching staff needs more reforms and improve the management level in order to better train and guide players is a problem that needs deep thinking.

This defeat is undoubtedly a painful experience for China women’s football team. After the game, the players cried many times, and the Xie Chang session of the whole team was full of sadness. They have worked hard for their own defeat, but in the end they failed to advance as expected. This setback needs reflection and summary, and China women’s football team needs to learn from it and constantly improve its level.

However, this defeat does not mean that the women’s football team in China has come to an end. This is only a temporary setback, not an end. China Women’s Football Team has many potential players, who will have the opportunity to prove themselves and compete for honor in future competitions.

The future of women’s football in China is still full of hope. Although this defeat is sad, it can also be seen as an opportunity to urge the China women’s football team to make greater efforts to prepare for future competitions. China women’s football team needs to learn from this failure, strengthen teamwork and improve the overall competitive level.

China football needs more reforms and improved management level to better promote the development of China football. Although this setback is sad, we believe that China Football Club will keep going and strive for its dream. I hope that the women’s football team in China can re-emerge and win honor for the country, and I also look forward to more progress and development of football in China in the future. No matter how difficult it is, China football will keep going.

The failure of China women’s football team is a setback, but it is also an opportunity. China football needs to learn from it, keep moving forward and strive for more honor. In the future, China women’s football team will have the opportunity to rally and make a name for itself in the international arena again. At the same time, China football needs to continue to reform and improve its management level to ensure the long-term development of China football. No matter how many challenges are encountered, China Football will stick to its dream and strive to move forward.

Domestic beauty has stood up since then?

Author | Liu Ran

Title map | IC photo

# This article belongs to Tiger Sniff’s newly launched column "Shiny IPO". This column aims to pay attention to the newly listed companies this season, dismantle their industrial and investment values, and provide the public with a more comprehensive and accurate commercial interpretation, including articles, long pictures, short videos, live broadcasts and other forms.

The perfect diary, which is only three years old, has been on the stage of the New York Stock Exchange with the title of "the first domestic beauty".

On the evening of November 19th, Perfect Diary’s parent company, Yixian E-commerce, successfully went public with the stock code "YSG" and the issue price was US$ 10.5. Then it opened up nearly 70% and its share price closed at US$ 18.4 on the first day. As of press time, the market value of Yixian e-commerce exceeds 13 billion US dollars.

From the establishment of the brand to the first place in Tmall makeup, and then to the listing, the perfect diary has a smooth journey. Of course, there is the help of capital behind this. Since 2018, Yixian e-commerce has maintained the rhythm of financing at least once a year. This year, it won two financing in the unit of 100 million US dollars in April and September respectively. On the list of investors, there are many head institutions such as Zhenge Fund, Gaochun Capital, Gaorong Capital and Houpu Investment.

Why can Perfect Diary, together with other "online celebrity" cosmetics, stand out from the encirclement and become a phenomenal brand in the domestic beauty market, which has been shifted by the brand will of Europe, America, Japan and South Korea? This not only depends on the label of "domestic products" and capital, but also is considered as the victory of the new marketing era. In the media group interview on the evening of listing, Huang Jinfeng, founder and CEO of Yixian E-commerce, did not deny this initial impression, but he also said that according to the model of Yixian E-commerce, after the initial investment, there will definitely be a return period in a certain period of time in the future.

Therefore, how should we define the perfect diary? What kind of challenges does Yixian e-commerce face after listing? How far can the dividend in the new traffic era help it go? These problems are still worthy of further study.

Yixian e-commerce has come to this day, and this "diary" has actually been written to the first few pages.

First, do you make money with cost-effective beauty?

Within two years, the valuation of Perfect Diary once rose from $1 billion to $4 billion, and its value soared four times. It was not until the prospectus was published that the results of this dark horse in the beauty industry finally revealed the mystery: the revenue increased significantly from 640 million yuan in 2018 to 3.03 billion yuan in 2019, an increase of 377.1% year-on-year; The net income in the first three quarters of 2020 was 3.27 billion yuan, a year-on-year increase of 73.2%.

There is no need to repeat the story of the rise of the perfect diary. With the mature Internet infrastructure, social and short video platforms have brought new traffic dividends, and platforms such as Xiaohongshu, Tik Tok, bilibili and Tmall have become the promised land of the perfect diary.

According to the prospectus, Yixian e-commerce is the first beauty brand to use online KOL on a large scale. As of September 30, 2020, there were nearly 15,000 KOLs cooperating with Yixian e-commerce, including more than 800 KOLs with more than 1 million fans.

Up to now, Yixian E-commerce’s products often appear in various KOL video and live broadcast rooms. Even if you have never used its products, under the education of various forms of advertisements on these platforms, you may also call out the names of explosive products, such as animal eye shadow disks, feather satin powder cakes, Odin eyeliner, cat and mouse blush.

The perfect diary has really gone out of a different way from the so-called big-name beauty cosmetics. With the characteristic labels of "cheap", "good-looking" and "fast on the new", it quickly seized the cognition of the post-95 users who were active in Xiaohongshu, Tik Tok and bilibili.

The renovation of the Perfect Diary is very fast. When Li Jiaqi pushed the new feather satin powder in the live broadcast room, the popularity of the geographical eye shadow tray actually just passed less than half a year. According to the data in the prospectus, in the whole year of 2019 and the first three quarters of 2020, Yixian e-commerce launched more than 1,500 SKUs in eye makeup, lip makeup, foundation makeup, cosmetic tools, gift boxes and skin care categories, and it can complete the whole process of a new product from concept proposal to development and launch within 6 months, while international brands usually need 7-18 months. Behind this speed, the perfect diary adopts OEM/ODM mode, that is, under the impetus of data, it is jointly developed and produced with manufacturers.

Because of this model, the gross profit of Yixian e-commerce is not disappointing, and its gross profit margin in 2018, 2019 and the first three quarters of 2020 is between 63% and 64%. (Of course, the gross profit of the beauty industry itself is not low. According to public information, the gross profit margin of Estee Lauder in the third quarter of this year was 76.8%, and the gross profit margin of L ‘Oreal in the first half of this year was around 73.1%. In contrast, Yixian e-commerce is not high. )

Generally speaking, in the prospectus, Perfect Diary defines itself as a "DTC(Direct-to-Customer)" brand. In the early stage, we made explosive products through a lot of online publicity and online celebrity KOL endorsement, and sold them through online channels.So that the brand can directly establish marketing and transaction contact with customers without channels such as distribution/consignment and store manager, and form an efficient feedback mechanism and data center.

In 2018, 2019, the first nine months of 2019 and the first nine months of 2020, the proportion of net income generated by Yixian e-commerce through DTC channels reached 91.1%, 88.1%, 88.7% and 86.7% respectively. In the whole year of 2019 and the first nine months of 2020, the number of DTC users of Yixian e-commerce was 23.4 million and 23.5 million respectively, up by 236.3% and 50% year-on-year.

The construction of digital middle platform based on social platform marketing to lay out a controllable supply chain system is the main reason why Yixian e-commerce stands out in the current beauty field.

This is the initial victory of the perfect diary.

As a new brand that has just experienced from 0 to 1, the bright performance growth rate is eye-catching and makes the capital crazy. And at this speed, the perfect diary also ushered in its anxiety.

Second, the anxiety of traffic stars

Although the highlight moment has arrived and the gross profit margin is not ugly, in fact, Yixian e-commerce is still in a state of loss as a whole.

DTC mode saves the cost of agents and other intermediate links for Yixian e-commerce. Yixian e-commerce has achieved a certain degree of profit before 2019, but by 2020, its adjusted net loss in the first three quarters exceeded RMB 1 billion.

In addition to the impact of the epidemic, the main reason for turning from profit to loss in the first three quarters of 2020 is the continuous investment of Yixian e-commerce in brand building-behind the track of high-speed driving, it is the great cost of maintaining the brand.

According to the prospectus, in order to vigorously promote its brands such as Perfect Diary, Little Odin and Wanzi Heart Selection, in the first three quarters of 2020, the sales and marketing expenses of Yixian E-commerce have reached 2.033 billion yuan, accounting for 62% of the revenue (the average gross profit margin in the same quarter is 63%), while in 2019, the proportion was only 41%.

These cost data seem to prove the general recognition of the perfect diary-its rise is equivalent to the victory of marketing.

Concerns from the outside world have emerged. Brocade, the analysis platform of listed companies, said that such losses are not common in beauty listed companies. For example, Yujiahui, Polaiya and Marumi, which have already become A-shares, are relatively stable in the first three quarters of 2020, and their net profit performance is much better when the revenue scale is 1 billion yuan and 2 billion yuan. At the same time, the article said that under such a loss, it is difficult to further increase the scale of the perfect diary because of the small differentiation of beauty products and the small overall growth rate of the industry.

Marketing and traffic have become people’s first impression of the perfect diary, which is a sharp double-edged sword.

We should know that Perfect Diary is almost synchronized with the rise of Little Red Book, Tik Tok and bilibili, which makes Perfect Diary seize the opportunity of this wave of traffic dividends, and because it makes full use of private domain traffic, it firmly holds the post-95 users in its hands with "face-to-face" service. However, omni-channel marketing has now become an e-commerce event, and channels and traffic centers will continue to change and shift. Only relying on traffic dividends to promote brand development may have a very limited effect.

For brands,Clever marketing methods and traffic effects can bring immediate growth effects, but relying on them alone can not create long-term brand value.Specific to the industry, beauty is an industry with low technical threshold and prevailing OEM. Compared with the ability of self-production and independent research and development owned by big brands, the threshold of OEM/ODM mode is much lower. At the same time, under the emerging traffic brought by new social platforms, the reproducibility of OTC brands is also increasing. It can be said that the perfect diary will face more homogenization competition, and the investment in marketing may be more.

For such "cross-examination", Huang Jinfeng finally made his own response.

He said that this year’s marketing costs have risen. The first reason is that many offline stores have been opened this year, and the rents of offline stores and employees’ salaries have still been paid during the epidemic. Second, Odin Jr. and Wanzi Xinxuan are still in their high-speed growth period, and they are in a big investment stage.

At the same time, in Huang Jinfeng’s view, every brand will have an investment period, and then it will enter a stable stage of profitability, and the return of Yixian e-commerce will be faster than that of traditional brands. "Our business model is slightly different from traditional brands. Traditional brands will take longer to build brands, and we can make brands grow faster based on the user-centered and Internet-based model. After the user purchases the product, his data models of repurchase rate, retention and product recognition can be calculated. After the initial investment, there will definitely be a payback period in a certain period of time in the future. " He said.

As for the next, Huang Jinfeng believes thatWhen the market is facing great challenges and changes, it should continue to invest.: "At this stage, Yixian’s e-commerce strategy is very clear. We will never back down and insist on investing. Although we are still far from the international beauty giants today, to be honest, we still have self-knowledge in our hearts, but when it is time to fight, we will never admit defeat, and we must invest when we invest. "

Obviously, in the short term, the perfect diary still can’t get rid of the label of "marketing". In order to get out of it faster and create greater value for the brand, the perfect diary is trying to start from other aspects.

Third, the challenges that face us

Yixian e-commerce is now releasing new signals and trying to add more keywords. Their direction is nothing more than high-end, multi-brand, multi-category and offline layout. Everything has just begun.

In October 2020, Yixian e-commerce announced the acquisition of a majority stake in Galénic, a high-end beauty brand under Pierre Fabre Group of France. And this business may officially kick off the "acquisition" trip of Yixian e-commerce.

Pierre Fabre is one of the largest dermatology and nursing groups in Europe, and it also owns brands with high reputation in skin care products such as Yayang. Official website of Galénic shows that the price of its products is about 20 ~ 100 euros, which is higher than the price of 49 ~ 129 yuan of Perfect Diary.

Huang Jinfeng explained that this "acquisition" is not a 100% acquisition, but a joint venture company has been established between the two parties. This is because the company will go to skin care products and high-end routes in the future, and it still needs to learn a lot. Pierre Fabre has invested in product research and development for many years, so I hope they can bring more help in research and development and production.

The acquisition of Galénic brand is obviously to supplement the shortcomings of the high-end product line and skin care products of Yixian E-commerce, and continue to export freshness to users, and then supplement their R&D and production capabilities with the deep cooperation with Pierre Fabre.

Yixian e-commerce has realized that a single category and brand image does not have long-term competitiveness, and it is best to become a beauty group with multiple categories and brands to cope with different market needs and time changes.

You know, before Galénic, Yixian E-commerce had three brand matrices, namely Perfect Diary, Little Odin and Wanzi Heart Selection, which basically covered the lower price range of makeup and skin care products, butWhat supports the achievements of Yixian e-commerce is actually only the main force of the perfect diary.

According to the prospectus, in the first three quarters of 2018, 2019 and 2020, the sales contribution of Perfect Diary accounted for 100.0%, 98.3% and 82.1% respectively, and the sales of Odin Jr. and Wanzi Xinxuan accounted for less than 20%. Just like the popularity and reputation of their products, most of them are concentrated on makeup categories such as eye shadow and lipstick at present, and the presence of skin care products is not high.

"Multi-brand" is the only way for most beauty groups to maintain their vitality. After all, a huge product matrix means more market share, endless explosions, and more stable vitality. At the same time,The interaction between high-end brands and low-end brands can also make the revenue and profit sources more diverse and healthy.According to public information, L ‘Oré al Group currently has 36 mature brands, including top brands such as helena rubinstein, and first-line cosmetics/skin care brands such as YSL, Giorgio Armani and Lancome.

The rapid upgrading speed of the beauty industry leads to high time cost of independent research and development, especially the threshold of high-end beauty and skin care products is much higher than that of beauty products. Such slow efforts are difficult to meet the growth goals of Yixian E-commerce today, and the efficiency of achieving the goal through acquisition is also much higher.

The trend of "high-end" has also gradually appeared in the marketing level of perfect diary. The spokespersons of Perfect Diary used to be young idols and traffic stars. Until October this year, Perfect Diary took Zhou Xun, who had endorsed Audi and Chanel-related products, as the first global spokesperson, and at the same time used European and American singer Poke Ye as the brand ambassador of Perfect Diary, emphasizing research and development stories while launching new products and endorsing the premium of the brand.

"For Yixian, it is a challenge to enter the skin care category and take the high-end route, but we are full of confidence." Huang Jinfeng said.

In addition to more levels of brands and categories,I’m afraid the perfect diary now needs more diversified sources of income.

At present, the sales of Yixian e-commerce still rely on the e-commerce platform. According to the prospectus, in the first three quarters of 2019 and 2020, the sales of its online platforms accounted for 96.7% and 91.3% respectively. At the same time, the main online sales channel is Tmall.

This situation leads to the fluctuation of its sales with the off-peak season of e-commerce. For example, its sales in shopping festivals such as "618" and "Double Eleven" account for a large part of Q2 and Q4. In such a special period of e-commerce sales, the perfect diary needs to prepare more inventory and higher marketing budget than usual, thus raising the operating cost.

Dependence on a single sales channel has become an urgent problem to be solved. Therefore, the offline store that traditional brands love has also become one of the new stories to be told in the perfect diary.

Up to now, Yixian e-commerce has about 218 stores online, covering more than 100 cities. Feng Qiyao, president of the new retail business unit, is responsible for the offline layout of the company. Facing the reality that Yixian e-commerce relies on online channels, he responded that as a beauty company that started from e-commerce, Yixian has been involved in offline business for less than two years, so the current income ratio does not explain the problem, but he has always believed in the importance of new retail to enhance user value.In the future, we will make great efforts to invest offline, and we will remain self-employed rather than joining in order to establish a moat of brands in the future.

Shanghai Perfect Diary Cosmetics Store, picture from IC photo.

However, offline stores are different from the good times online. This is a business that tests the management and expansion ability of stores, which will also bring new pressure to the future operation of Perfect Diary.

Fourth, fight for the right to speak

Yixian E-commerce in the spotlight has attracted the attention of all startups and investment companies, not only because it has flourished as a new brand in just three years, but also behind it represents the future of this wave of new beauty brands.

There is more than one "perfect diary".

Often appearing on the list of e-commerce platforms and in major KOL live broadcast rooms, there are Hua Xizi, who is often compared with Perfect Diary, and domestic brands such as Tangduo, Winona, Mary Daijia, Zhiyouquan, Yuze and HomeFicialPro. On the other hand, Lin Qingxuan, Dai Chunlin, Xie Fuchun, Baique Ling, Marubi and so on, who also rely on e-commerce platforms and marketing to "renovate" their brands.

According to public information, the sales of Huaxizi are expected to be close to 3 billion by the end of the year, and the momentum of Huaxizi is not weak in terms of the exposure of social platforms, sales growth rate and double eleven.

Facing the competition of similar brands under the same banner of "domestic products", the perfect diary after listing needs to strengthen the moat and maintain the market advantage. There will be a lot to see in the competition between them.

butHu Wei believes that, in essence, the competition of domestic beauty brands has actually reached the stage of competing for definition and leading "Chinese aesthetics".Whose products can take the lead in winning young people in China and even in the world will lay the foundation for competing for the right to speak as a beauty leader.

More domestic brands often choose to interpret their brand image in Chinese style, and instill an emphasis on aesthetics in this generation of young people. Among them, Hua Xizi chose the cuckoo with oriental face as the image spokesperson, and at the same time deliberately emphasized the Chinese style and ethnic minority elements in products and packaging, and promoted it overseas. The marketing action of its new gift box set in overseas KOL was quite frequent. The perfect diary emphasizes "developing products based on the facial and skin characteristics of Asian women", trying to define the beauty needs of these post-95 s.

However, the young groups they are targeting are actually the ones that international brands are eyeing now.

International brands have lowered their posture. Who makes China market become the largest and most competitive beauty market? Yang Donghao, CFO of Yixian E-commerce, gave a data: 60% of the growth in the beauty field in the next 5-10 years will come from China. "He who gets China gets the world." Huang Jinfeng also said that this year’s "Double Eleven" has become a very important node in the field of beauty. Because of the epidemic, the investment of international beauty giants in China reached its peak this year.

Despite the rise of domestic products, they still have to face some realities: according to public information, 80% of the cosmetics market in China is still occupied by overseas brands, and domestic brands are mainly concentrated in the low-end market.

And most of the domestic brands that have survived from the only market often have a common fate-to become flat substitutes from big-name foundries, or "stepping stones" on the road of "cost-effective girls" to big brands. Standing at the top of the pyramid of earning money and brand value are always international big-name products: they all have a fixed class and consumer groups behind them, and the higher the brand, the less mobile its user class is.

The beauty market as a whole is still in the hands of international brands, and the data comes from Tmall and public information.

Perfect diaries have come to people’s field of vision with new ways of playing, and the opportunity of domestic beauty products market has surfaced behind the popularity.

"China must have a chance to give birth to a new L ‘Oreal." The dialogue between Huang Jinfeng, the founder of this perfect diary, and Zhang Lei, Gaoyan Capital, is often circulated in public reports. However, Chen Yuwen, co-founder of Yixian E-commerce, once told China Entrepreneur Magazine, "If one day, we have the opportunity to become a leading group in China Beauty Group, in fact, we don’t want to be L ‘Oreal in China, we hope to be a perfect diary of the world."

Caution in words can’t stop people from comparing domestic brands with international brands.The next situation of the perfect diaries will become the vane of whether domestic beauty brands can make their mark.

The perfect diary is ahead of the road to listing, but it is a difficult problem for domestic beauty brands to seize the right to speak from mature beauty brands, and they are still at the same starting line. It’s not easy to create and lead a new trend. Before oriental aesthetics goes international, the premise is to ensure that it can cater to young people’s aesthetics for a long time, so that the unconventional "online celebrity products" can become enduring classic brands.

In the final analysis, whether the brand can last for a long time depends on whether the product is easy to use.

If you are optimistic enough,Perfect diaries still hope to become synonymous with oriental make-up, and rank among the first-line beauty brands with the reputation of domestic beauty. It’s just a long road.

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Advantages and disadvantages of the four strokes (technical flow angle)

In this article, we will objectively evaluate the advantages and disadvantages of the four major strokes and the four most basic strokes. As a swimmer, relevant knowledge will help you to understand swimming more deeply and make swimming and body and mind combine perfectly.

breaststroke


Breaststroke is generally one of the first strokes that beginners come into contact with. Modern breaststroke has developed into whip breaststroke leg, and the breaststroke swimmer has also been broken down into several action stages, namely, returning the arm, sliding, paddling, chest and hand, all of which are done underwater or near the surface.

The advantage of breaststroke is that the head can easily get out of the water, the front vision is not affected, and there is no big breathing problem. Another advantage is that the hands and legs of breaststroke move synchronously in the same symmetry, which is also beneficial for beginners to master the initial movements, so breaststroke is easier to learn from all strokes.

The main disadvantage of breaststroke is that it is slower than other strokes and less efficient.

backstroke


Backstroke is the easiest stroke to learn after breaststroke. Backstroke, as its name implies, is swimming on the back, and backstroke leg is also a kind of whipping leg, and it should be whipped up and down alternately.

The hands of the backstroker swing like a windmill in turn. After the straight arm comes out from the hip, the straight arm moves to the top of the head to enter the water, and then grabs, pulls and pushes the water to the hip for one cycle.

The advantage of backstroke is that once the backstroke is well balanced, breathing is not a problem at all, and it is more efficient than breaststroke, and it can also do long-distance backstroke, and it can be used as an auxiliary treatment stroke for patients with low back diseases.

Backstroke also has disadvantages. The speed of backstroke is not as fast as freestyle and butterfly. For beginners, it is not easy to master the balance of backstroke. Therefore, the nose will often get water and choke, and for beginners, swimming will be very uncomfortable because they can’t look forward.

freestyle


Freestyle requires swimmers to lie prone, and the leg movements are the same as backstroke legs, which are also whipping legs, and they should be whipped up and down in a cross way. The hand movements require that the arm should be pulled back from near the thigh and head into the water, and then the water should be scratched and pushed to the thigh and then returned to the arm.

The advantage of freestyle is clearly that it is fast. Freestyle is the fastest and most effective stroke, and it is also the fastest stroke in competitive competitions, and it is also the favorite stroke of long-distance swimmers in recent years. Freestyle can achieve the minimum physical consumption for long-distance swimming.

The disadvantage of freestyle is that the face must be underwater for a long time and vertically downward, which requires turning your head when breathing. The coordination of breathing and body swimming in freestyle makes it one of the more difficult swimming postures to master.

butterfly stroke


Butterfly stroke is the most beautiful and difficult stroke among the four strokes. Butterfly stroke requires the body to do wave-like movements like dolphins, that is, whip the whole body. The underwater movement of the arm is actually similar to the front of freestyle, except that the hands are synchronized, and the water is thrown in front of the water after being pulled under the hips.

The advantage of butterfly stroke is that it is fast. Apart from freestyle, butterfly stroke is a relatively fast stroke, which is faster than breaststroke and backstroke. Another advantage is that it looks good and fun because of its unique dolphin-like body fluctuation.

However, one disadvantage of butterfly stroke is that it consumes too much and is not suitable for long-distance swimming. Another disadvantage is that it is not easy to learn, because butterfly stroke requires difficult body wave movements and the timing of arm ejection is not easy to grasp.

The technical advantages and disadvantages of the four strokes are briefly analyzed, which helps beginners to understand swimming and enhance their curiosity, and also helps swimmers to learn more about swimming. Help all people who love swimming to explain the problems encountered in swimming.

China beauty cosmetics won’t give in easily.

Title map | vision china

Three years after the epidemic, it seems that the economy and consumption have been slowly drawn out. How many people will wear full makeup when they go out now?

According to the latest data released by the National Bureau of Statistics, the total retail sales of cosmetics in March 2022 was 34.5 billion yuan, down 6.3% year-on-year, which was the first decline in two years. Waves come between the ripples, and the signs of industry change can be seen from these data.

In it, China’s beauty brand has also sung all the way to a difficult step, and after a sharp rise and fall, it has come to a difficult turning zone:The whole industry has entered a period of deep ploughing, and it is urgent to find a new growth engine after the traffic dividend disappears.

But for enterprises, the transformation under the headwind of the industry has always been a life-and-death test.

Even Yixian E-commerce, which achieved the listing myth in four years by virtue of the perfect diary of "Light of Domestic Products", has become a shackle now. If it cannot establish a higher barrier for its own products and brands, its road to rise will reach its peak.

So,The key question now is, where will the tide of the beauty industry flow? Can the perfect diaries follow the trend and be reborn, and then get the favor of capital?

The direction of the tide

Tides also have cycles. If you want to understand the challenges of domestic beauty products more deeply, maybe you can look back a little.

Around 2000, a batch of "Made in China" appeared in China’s daily chemical industry, which seems to be a big brand today: "Vitality 28", "Little Nurse" and "Ding Jiayi" … Now these forgotten names have also sprung up, even if they compete with international big brands, they have never fallen behind.

But in the end, most of them failed, and the reasons are very complicated. First, under the epidemic, beauty cosmetics, as a non-mandatory consumption, are weaker as a whole; Second, consumers are more picky and the traffic is getting more and more expensive; Third, the industry supervision policy has become stricter; Fourth, the business strategy failed to be adjusted in time, and the living space was squeezed by the acquisition of Xuecang.

But even if the market is cold, China’s beauty industry still has huge imagination:

In 2021, the Food and Drug Administration officially announced that China had become the second largest cosmetics consumption market in the world, which took only 20 years. With the increase of per capita disposable income and the improvement of consumption concept, the beauty market has not yet reached the ceiling. From the subdivision of the track, skin care products are more needed and the ceiling is higher.

If we benchmark overseas markets, the per capita consumption of cosmetics in China will be less than 50 US dollars in 2019, and the markets in Europe, America, Japan and South Korea will be 5-7 times that of ours, which shows that the demand has not been fully released. But from the perspective of competition pattern,International brands still dominate the high-end beauty market in China, while domestic products are dormant in the mass market. In the era of the rise of the national tide, there is hope to run out of domestic beauty brands that can compete with international giants in the future.

There is room for development,How do domestic beauty brands find and install the next round of growth engines?

Judging from the growth path of global beauty brands that have been deposited for a hundred years, product strength and brand strength are undoubtedly the two core competencies that can lead by far. This clearly shows that beauty brands must have strong R&D strength in order to provide products with more powerful and targeted functions.

For a time,The strategic layout of brand power and crossing cycle has become the focus of beauty industry.New domestic products have also tried the water.

For example, Yixian e-commerce has launched a triple transformation. But many years ago, "Made in China" failed to cross the threshold. Can today’s new domestic products solve it?

Fight change with change.

Let’s focus on Yixian e-commerce, a beauty brand that has reached the level of ten-year revenue of some domestic brands in three years. It develops products by integrating the world’s top supply chain, gains the recognition of users with the quality of comparable brands, and superimposes the accurate grasp of traffic dividends, so that its repurchase rate, conversion rate and positive word-of-mouth continue to rise, thus grabbing market share faster.

However, with the gradual fading of the channel dividend and the impact of the epidemic, the overall growth of the beauty industry slowed down, and Yixian e-commerce also experienced an "unwell" reaction-in 2021, it achieved an operating income of 5.84 billion yuan, an increase of 11.6% year-on-year, and the growth rate slowed down. But in fact,Yixian e-commerce is also one of the few beauty companies in the industry to achieve positive growth in performance.

When the environment is different, the market competition intensifies and the traffic platform matures gradually, and now there are fewer and fewer "traffic depressions". Compared with competing for traffic, the key element of future competition is hard power in all aspects. Therefore, beauty companies began to enter the stage of refined operation 2.0, from "impulse" to "quality improvement".

Yixian e-commerce has also opened a new model of "hematopoiesis", and the first step is the transformation of "reducing blood fat and increasing muscle".This has also brought it higher operational efficiency and improved profitability:

In 2021, the operating expenses of Yixian e-commerce totaled 5.523 billion yuan, down 8.67% year-on-year; Sales gross profit margin increased by 2.5 percentage points year-on-year to 66.8%; Net loss narrowed by 42.5% year-on-year.

butThe key is still in the second step: creating a new growth curve.

Internet gives new domestic products the opportunity to become "online celebrity", but it also reduces the possibility of them becoming "Changhong" brands. Yixian e-commerce is lucky, and Perfect Diary is its first brand to enter the mature stage; However, referring to the development history of those international beauty giants, we must establish our own multi-brand matrix to maintain lasting vitality.

The first direction of attack is definitely the new growth point of China’s beauty industry-mid-to-high-end beauty market. According to the data of Huajing Industrial Research Institute, the proportion of mid-to high-end beauty market in 2020 and 2021 was 24.8% and 26.3% respectively, and the growth rate was significantly higher than that of mass beauty market. It can be seen that the trend of consumption upgrading is also applicable to the beauty industry.

Yixian E-commerce has also laid out two high-end skin care brands, EVE LOM and French Kelanli, and achieved initial results: during the double 11 in 2021, EVE LOM sold for two hours, which exceeded the total sales of double 11 in 2020; Kelanli broke the international record of Tmall and became one of the fastest growing high-end skin care brands in 2021.

Thanks to this, Yixian e-commerce skin care sector achieved rapid growth. In 2021, the income of skin care brands grew rapidly, and GMV reached nearly 1 billion yuan, up 332% year-on-year, accounting for 14.6% of the total revenue, which has become the second growth curve.

In addition,Beauty and skin care have also set off a "component party" craze. This young people are keen to explore whether the product ingredients are scientific and pursue a healthier and more effective way to become beautiful.Yixian e-commerce also launched a targeted brand: DR.WU Darfu, who positioned the brand of "Doctor Specialized Research". As long as you have a little understanding of "brush acid" and "Early C and Late A", almost no one knows its ace single product almond acid essence; Everyone’s yearning for eggshell muscle also helped it become the first acid product of Tmall double 11.

Yixian E-commerce also independently hatched the skin care brand Wanzi Xinxuan and launched the independent beauty brand Pink Bear, thus building a matrix with eight brands, including Perfect Diary, Little Odin, Wanzi Xinxuan, Galénic French Colanli, DR.WU (Chinese mainland business), EVE LOM, Pikoan and Yi ‘an State, and initially forming a coverage of all categories and full price bands.

If the brand matrix is still an iceberg on the water, then talents, R&D and infrastructure are huge bases under the water.

Judging from the 2021 annual report of Yixian E-commerce, it is actively investing in these "three major assets".

In terms of research and development, Yixian e-commerce invested 142 million yuan in real money in 2021, up 113.6% year-on-year, and the R&D expense ratio reached 2.43%; Its R&D investment level has been in the first echelon of domestic beauty listed companies. Up to now, Yixian e-commerce has 118 patents worldwide, and the number of patents has increased by 71% year-on-year, including 39 invention patents (some of which are in the process of transfer).

Yixian e-commerce also actively uses external forces to integrate global resources through Open Lab open R&D system.Its cooperation not only includes well-known research institutions at home and abroad, such as the Institute of Chemistry of the Chinese Academy of Sciences, the National Nano-drug Engineering Technology Research Center of Huazhong University of Science and Technology, and the 3D Skin Research Institute of the University of Lyon, France; It also includes related upstream and downstream, such as Shanghai Ruijin Hospital, Kosmeishi, Yingteli, etc., in order to jointly solve the problem of beauty research.

It can be seen that Yixian e-commerce turned"technical beauty cosmetics"With great determination, it also has enough liquidity and flexibility to achieve strategic goals (by the end of 2021, its book capital totaled 3.14 billion yuan); It’s just that this return may be nonlinear, but can today’s capital market be patient?

Enter a new value cycle

Yixian e-commerce used to be the "darling of capital", whether it was multiple rounds of financing in the process of growth, or ultra-fast completion of listing, or the market value soared from 100 million US dollars to 16 billion US dollars in February 2021.

However, after that, influenced by the double factors of the inner ring, the performance of Yixian e-commerce capital market is hardly optimistic, and its share price has seriously deviated from its intrinsic value.

External factors include the end of the channel dividend period, the constant pressure on the share price of the beauty sector caused by repeated epidemics, and the constant turmoil of the China Stock Exchange policy and the valuation killing caused by geopolitical conflicts. Internal factors mainly mean that Yixian e-commerce is in a strategic transition period, and now it focuses more on reducing costs and increasing efficiency and realizing profitability. These measures will also make sales fluctuate within a certain period of time.

For this reason, Yixian E-commerce received a delisting warning from new york Stock Exchange. Although this is a normal regulatory risk warning of NYSE, it does not mean that the enterprise is in the delisting stage, and Yixian E-commerce can completely raise its share price by means of repurchase and "share reduction" in the next six months to avoid delisting risk, but in the end, it depends on the effectiveness of its transformation to regain the favor of the capital market.

However, there is no precedent for the reversal of difficulties in China Stock Exchange.

Weilai, one of the top three domestic new electric forces, once fell to the red line of delisting in 2019, but by the end of the year, Weilai’s sales had grown against the trend and won the sales champion of new car-making forces for two consecutive months.The core is inseparable from the user’s belief in its product strength.

Inconvenient charging and long charging time are another obstacle to the use of electric vehicles after the anxiety of continuing navigation and battery safety problems. However, Weilai’s power exchange mode has solved the pain points in the market and brought confidence to electric vehicle users.

Many car owners have great expectations for the popularity of Weilai 100-degree battery and power exchange station. In their eyes, Weilai can solve the problem of users’ energy replenishment, at least at high speed, without considering the problem of running without electricity.

It is because of product strength that word-of-mouth comes out of the circle that Weilai’s sales can return to the growth track (Q4 still delivered more than 8,000 vehicles in 2019).

Visible,Product strength and brand strength are the basis for these new domestic products to enhance their fundamental performance and ultimately faithful wife.

This is also what Yixian e-commerce is practicing.

From the perspective of pure capital market, for beauty companies, the driving force of valuation switching usually comes from the continuous growth of existing brands, the marginal contribution of new brands, and the β -type development opportunities brought about by the tightening of supervision, accelerating the clearing of small and medium-sized enterprises, channel change and the rise of national tide.

What can be expected is that research institutions generally predict that the growth rate of cosmetics industry will show a trend of low before and high after this year, and the industry beta market is expected to be realized in the second half of the year; In the long run, the cosmetics industry is still a good track for "long slopes and thick snow". In the end, the new local beauty forces with strong brand matrix and group development potential will have greater investment value.

It is easy to break the circle, but difficult to grow red. Only by doing difficult and valuable things can perfect diaries truly usher in the next golden five years.

Related skills of playing badminton well

This content comes from @ What is worth buying APP, and the opinions only represent the author himself | Author: Where the dust floats,

The first part learned the basic knowledge of badminton. Let’s continue to discuss and learn the related techniques of playing badminton well.

1. Hold the racket
The key to playing badminton is to hold the racket. Everyone’s hands are different in size, but try to divide them into two parts. Hold the racket with middle finger, ring finger, little finger and palm. Flexible use of index finger and thumb.

First, it is used for forehand and backhand conversion; The second is the support point for swinging the racket. Usually the forehand fulcrum is the thumb and the backhand fulcrum is the index finger. The following is a schematic diagram. Focus on the position of the index finger.

Forehand grip

Backhand grip

2. Wrist

When you play ball, whether it is forehand grip or backhand grip, you should rely on your wrist to lead the racket left and right, then twist the racket back to the position of your fist and mobilize your whole body to serve the ball.

3. Hit the ball

Badminton can be hit because of the inertia force of the racket. Badminton is the best only when the beat turns positive, so that the ball hit will be free. Therefore, it is necessary to adjust the row surface in time and grasp the timing of hitting.

strike a ball

4, footwork

Footwork is also very important in badminton. Keep in mind that a consciousness is to have a low center of gravity. Because basically every stroke is made with the right foot striding forward, it is necessary to develop that when striding, the toes turn outward and the right heel touches the ground first, which can effectively and quickly attack or return to defense.

pace

After mastering these skills, you can improve your badminton skills, and you won’t be very bad in your daily activities. Of course, we must continue to practice and adjust in the later period to find a way that suits us.

Of course, there are still many requirements to achieve professional standards. . . Give professional things to professional people to do. As non-professionals, we should master the basic skills and do more exercise.

The author declares that there is no interest in this article, and welcomes rational exchange and harmonious discussion among value friends ~

Speed does not lose high-speed rail! How does badminton, the king of ball speed, fly?

Speaking of badminton, I think everyone is familiar with it. Even if you are not a badminton fan, you will often see players in various sports venues or squares, and you will be right.Lindane, Li Zongwei.When famous players hear about it.


However, even fans who often play ball may not have noticed it.Details of badminton flight.

Why is badminton designed like this? Does it always fly with its heavy ball head facing forward? How far can badminton fly? Does it spin when it flies?Presumably these questions have aroused everyone’s curiosity, so let’s walk into the text together ~

Part 1: Flip of Badminton

Anyone who has played badminton will notice a phenomenon, that is, when the ball flies towards you, it is almost always.Ball head in frontThe gesture. Put yourself in the other’s shoes, and your opponent will certainly see the same phenomenon. Then there is only one possibility, that isAfter each side hits the ball, badminton will turn over.Then turn around and fly back. The question is, is the U-turn completed at the moment of hitting the ball? Maybe we take it for granted.

Fig. 1 (a) a snapshot with an initial velocity of about 18.6 m/s and an initial angular velocity of about 206 rad/s (with an interval of 5 ms); (b) Snapshots with an initial velocity of about 10.4 m/s and an initial angular velocity of about 28 rad/s (interval of 6.5ms). | The picture is from the literature [1]

Unfortunately, the answer is not like this. As shown in the above picture, the moment of hitting the ball is basically atAbout 1msIt’s done, but it’s usuallyAbout 20msThe ball can be turned over. And then go through itDamping oscillationIn order to make its ball head point in the direction of speed. In order to show this process more intuitively, we draw the relationship between the ball head pointing and the speed direction in Figure 2.Angle φEvolution over time. amongτ, τ and τThey respectively represent the time from the first turning to the ball head facing forward, the damping oscillation time and the characteristic time to reach stability.

Fig. 2 Evolution of included angle in two cases. | The picture is from the literature [1]

It can be seen that after 0.1-0.15s, badminton seems to have a forward posture, so except for some special hitting situations, weIt is difficult to capture with the naked eye.The process of rapid turnover adjustment of badminton after hitting the ball. So … Does this flip behavior of badminton have anything to do with its own structure?

Fig. 3 Force analysis of badminton when traveling | The picture is from the literature [1]

The answer is yes. Badminton byCork ball head and skirt structure made of goose feather/duck feather or plastic.Composition, in which the ball head is heavier and the skirt structure has a larger cross-sectional area. We might as well abstract this feature as identified by B and C in the figure.Large mass and large cross-sectional areaSkirt area andSmall mass and small cross-sectional areaThe ball head area of.

When flying, assuming that the direction of the ball head is not consistent with the direction of the speed, and there is an included angle φ, the air resistance acting on B and C will generate a moment with the center of mass G as the reference point respectively. On the one hand, the skirt structure has a large cross-sectional area and air resistance.FBigger, on the other hand, BG is longer than GC, so the ball will inevitablyRotate counterclockwise around the center of mass until the ball head points in the direction of speed..

Figure 4 Badminton shape schematic. | The picture is from the literature [1]

If the above weight distribution is easy to think of, then aboutWhy did badminton choose an opening angle close to 45?Perhaps few people have thought about it. In fact, this is closely related to whether badminton can experience flipping and achieve stability faster. Some scholars have recreated the shape and mass distribution characteristics of badminton with small iron balls and skirt structures made of plastic, and released it freely in the way of skirt structure facing down in water, so that it can turn over during sinking, as shown in the following figure.How does its opening angle affect the turnover and stabilization time?.

Fig. 5 How the opening angle affects the turnover and stabilization time. | The picture is from the literature [1]

Visible, opening angle is too small and too big is not conducive to the stability of the flip, and fromThe range of 30 to 90.Will experience a stable and fast platform area. Obviously, the opening angle of badminton falls in this area.

Part 2: the flight path of badminton

Different from tennis, badminton’s flight trajectory is greatly influenced by air resistance because of its light weight.Seriously deviate from the shape of parabola. Generally speaking, the equation of motion followed by badminton flight can be written.

Among them, and are the mass, density and cross-sectional area of badminton, respectively, and the speed,UandgIs the vector of velocity and acceleration of gravity, and is a constant related to the test conditions. It is not difficult to understand that in addition to the gravity term that makes it do oblique throwing, the ball will also receiveResistance whose magnitude is proportional to the square of velocity and whose direction is opposite to velocity.. And the specific trajectory is made up ofSize and direction of initial velocityDecide. For badminton, we can define a quantity related to its flight characteristics, which is called pneumatic length.

For the badminton we use, this distance is about 4.6m, which determines that the final stable speed of the badminton is U=6.7m/s when it falls freely and vertically. In the picture below, we can see the flight trajectory of badminton at different initial speeds.Comparison between calculated value (solid line) and actual value (scattered point)It can be seen that the motion equation can predict its trajectory well.

Fig. 6 Comparison between the calculated value and the actual value of badminton trajectory with different initial speeds. | The picture is from the literature [1]

So how far can badminton fly? We might as well look at the changing trend of the distance X traveled by badminton when it falls to the same height as the starting height after approximately throwing. According to the above equation of motion, we can find that this distance depends on the initial speed of badminton. willFlight distancexOn the relationship between initial velocity elevation angle θ and velocity magnitude uDrawing, you can get the following results.

Fig. 7 Variation of travel distance (m) with initial speed direction (elevation angle) and speed.

As long as you have played badminton, this picture must contain some information points that you can empathize with. For example, we find that no matter how hard we use, it seems that badminton always flies."come to an abrupt end" near a certain distance. The upper speed limit in this picture has been reached.140m/sHowever, the farthest distance that can be reached is only 13.83m. And the badminton court we use13.4m longThat’s why badminton can only hit the opponent’s backcourt from one side even if it tries its best, and it won’t play much even if it is out of bounds.

Fig. 8 Schematic diagram of badminton court

Some readers may ask, is it too exaggerated to set the upper speed limit to 140m/s? Can badminton fly so fast? In fact, it is not an exaggeration. In July 2013, Chen Wenhong, a Malaysian men’s doubles player, killed the ball under the ideal conditions in the laboratory.493km/hThe amazing speed is equivalent to136.9m/s. There are also reports that Danish player Codin has played.506km/hKill the ball record, namely140.6m/s. Even in the game, Codin played.426km/hSuper fast kill ball. thereforeBadminton is the deserved king of ball speed!

Fig. 9 The ultra-fast kill of Keding 426 km/h.

In fact, the flight trajectory of badminton is also related toType of ballRelated. We usually have two kinds of balls made of feathers and plastic. The following figure shows the difference of their flight paths.

Fig. 10 Trajectory comparison between feather ball and plastic ball. | The picture is from the literature [1]

On the one hand, with the same initial angle and speed,The reachable range of plastic ball making is larger than that of feather ball making.; On the other hand, feathering is near the highest point of flight.Greater curvature, trajectoryCloser to the "triangle".

Figure 11 Plastic balls


This is because under the condition of ensuring firmness and low cost,Plastic ball making tends to be biased.. This also means that feathering can be done without going out of bounds.Fly at a faster speed, thus reducing the opponent’s reaction time. Therefore, feather ball making is often more popular.

Part 3: the rotation of badminton

You may have noticed that badminton feathers areArranged obliquely in the same clockwise directionYes. Is this an irrelevant design? Actually, it is not. We can think of each feather as a thin plate, which will be subjected to when traveling in the fluid.The direction is perpendicular to the plane and opposite to the speed direction.The force, as shown in the figure below.

Fig. 12 Stress diagram of feather | The picture is from reference [1]


We immediately think that the resultant force of these forcesWill make the whole badminton rotate around the axis!When badminton travels at a faster speed, the greater the resistance, the greater the torque generated by the resultant force, which makes badmintonFaster rotation. If we multiply the angular velocity ω by the axial radius r of the feather to get the linear velocity at the feather, we will find that it is almost the same as the traveling speed.Linear relationship.

Fig. 13 Relationship between badminton rotational linear speed and traveling speed | The picture is from the literature [1]

Moreover, compared with plastic balls,The rotation speed of feather ball is obviously faster in flight.. The analysis shows that faster rotation will limit the precession of feather pelletizing, whichConducive to the stability of feathering in flight..

It seems that the flight details of badminton are really a university question. In this process, we can not only learn a lot.Physical knowledge, but also help to understand the ball.Flight path. After watching the push, the little friends quickly pick up the racket and see if the skills are improving ~

References:

[1] Cohen C, Texier B D, Quéré D, et al. The physics of badminton[J]. New Journal of Physics, 2015, 17(6): 063001.

[2] Badminton (Ball)-Wikipedia

[3] Kwan M W. It’sa Birdie… It’sa Shuttlecock… It’s Badminton: The Physics Behind the Badminton Shuttlecock[J].

[4] The world record of killing balls has reached a new high!


Editor: clouds open and leaves fall

"How many flowers did you earn today?" Why is domestic beauty more and more expensive? | Business Micro-Historical Records

Recently, Li Jiaqi’s inappropriate words in a live webcast caused widespread controversy, which made him and his co-brand Hua Xizi questioned. According to the statistics of bloggers in Little Red Book, Hua Xizi’s eyebrow pencil is priced at 79 yuan, with a content of only 0.07, and the price per gram is higher than that of gold. Why do you think that "cheap and big bowl" domestic beauty products are becoming more and more expensive? How to strike a balance between "self-help" and "price increase" for domestic beauty cosmetics?

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Table tennis Portugal tournament ends! Japan was wiped out, Guoping won three championships, and the men’s team was defeated.

In the Portuguese table tennis match in 2023, the audience witnessed a fierce confrontation and technical contest. This competition is not only a test of athletes’ skills, but also a test of their psychological resilience. In this competition, the confrontation between the Japanese team and the China Table Tennis Team is particularly eye-catching, and both teams have demonstrated a high level of competitive state and adaptability.

First of all, it should be pointed out that the China table tennis men’s team suffered a rare rout in this competition. This result undoubtedly shocked many table tennis fans and experts. China’s men’s team, which is usually known for its stability and strength, seems to be unable to cope with the Japanese team. On the other hand, the Japanese team showed a rare unity and fighting spirit, and they showed excellent performance and were full of strategy in the game.

By analyzing the competition process, it can be found that psychological factors played an important role in this competition, except for the similar strength of the two teams in the technical level. China players are a little nervous and insecure at the critical moment, while Japanese players seem to be more adaptable to the stressful environment and can better control the rhythm and mood of the game. This difference in psychological preparation may explain why the Japanese team can completely suppress the China team.

Next, it is worth noting that table tennis, as a sport with extremely fast speed, requires extremely high concentration and reaction speed, and puts forward extremely high requirements for athletes at the spiritual level. Keeping concentration and adjusting strategy are the key to winning, and this is where the Japanese players performed well this time.

Nevertheless, we can’t just focus on the results when evaluating the game. Failure is also the only way for growth and progress. Although the China table tennis men’s team failed to get what they wanted, their fighting spirit and efforts are still worthy of recognition and respect. Similarly, the victory of Japanese players also proves their determination to constantly improve and break through themselves.

Looking back on the whole Portuguese table tennis competition, while analyzing the technical details and strategic layout of the competition, the inner world of the athletes is equally important. Sports competition is not only a physical contest, but also involves many aspects such as will, emotion and psychological quality.

To sum up, in the report shared by the gentle ship SvE publishing platform to the readers, we see a panoramic and in-depth analysis of the 2023 Portuguese table tennis competition. This paper objectively analyzes various complicated factors in the fierce competition between two representative groups-Japanese team and China table tennis team, and especially emphasizes the important position of psychological level in high-level competitive sports.


Finally, it reaches the emotional resonance point in expressing respect and encouragement to the contestants regardless of success or failure. Everyone in the sports field deserves admiration: the losers are tenacious and brave for it; Successful people are inspired by their outstanding achievements. Through such in-depth reports and reflections, we have more realized that the sports spirit transcends the simple binary opposition between victory and defeat, and passed on this spirit of persisting in pursuing Excellence and never giving up.