When the ping-pong ball is hit at supersonic speed …

In animation, Japanese students usually have the power of conan the destroyer, and playing ball always feels like a high-tech war.
In reality, can humans play ball games so ferociously?
(All the articles are professional, please don’t imitate them at home.)
Although it is impossible to rely on manpower, we can use the power of air and machines, such as the "vacuum table tennis cannon."
A cannon is actually more like a pipe. When a cannon is fired, the speed of the accelerated table tennis can reach 450km/h, which is about one third of the speed of sound.
At this time, the table tennis directly crashed into the coke with air pressure, and this can was like a punch in the abdomen:
What if the speed of table tennis is increased to supersonic speed? Will it be more powerful? In fact, mythbusters, a well-known popular science team, made a similar attempt many years ago.
According to their test, the average adult can hit the ball at a speed of about 112.6 kilometers per hour after swinging.The speed of sound is 1224 kilometers per hour, which is an insurmountable gap.
Unless, of course, the table tennis player is a machine.
After several attempts, they successfully increased the speed of table tennis to 730 kilometers per hour by pressure jet, which directly penetrated the 2.5 cm cardboard, but this speed is still far from the speed of sound.
At this time, the "vacuum ping-pong cannon" appeared.
To put it simply, this device is to put a ping-pong ball at one end of a pipe and then seal both ends of the pipe:
Then, the air in the pipeline is drained to make it enter a vacuum state, and then the seal at one end is punctured, and the air will rush in wildly and then fill the vacuum space.
At this time, the table tennis in the middle will be pushed by the air and move to the other side at high speed, and there is no air obstacle on the road.
The power of this kind of vacuum cannon has been improved remarkably. With only a 1.8-meter-long pipe, the ejection speed of table tennis has reached 600 kilometers per hour.
And if we add a pressure chamber to the vacuum cannon and increase the length of the barrel, the speed will be upgraded again.
(Image from Purdue University of Technology)
But it is not as long as possible. Once the barrel was lengthened to 47 meters:
The acceleration effect is different. After firing, the human eye can’t see the ball moving at all, and the ball disappears directly:
However, when the table tennis flies out of the barrel, it has been squeezed out of the ball by resistance.
In the end, the barrel was reserved for 6 meters, which not only ensured the integrity of the ball, but also reached the speed of 1770 kilometers per hour, which properly exceeded the speed of sound.
So, "What destructive power will the vacuum table tennis cannon have now?The researchers set the shooting target-a thick pig elbow.
Fill in table tennis, adjust the pressure, pump out the air and fire!
Table tennis hit the surface of the pork completely, and the elbow suffered great damage. A round wound immediately appeared on the epidermis:
But the injury doesn’t stop there. Under this wound, there is a wound with a depth of nearly 4 cm:
However, this wave of injuries is difficult to subdivide how much table tennis can account for. After all, it broke at the moment it touched pork, and the subsequent injuries were more like air cannons.
But overall, it smells like animation.
There are still many people who use "table tennis vacuum cannons" to sabotage. They have chosen all kinds of strange targets for testing.
Mark French, a professor at Purdue Institute of Technology, and his students, combined a supersonic table tennis cannon with a pressure chamber and a vacuum gun, which is said to be faster than an F-16 fighter.
(All the articles are professional, please don’t imitate them at home.)
In the face of this kind of attack, the table tennis bat can do nothing at all and is directly penetrated:
When you hit a tape, it’s like hitting tofu:
Not only did the tape break a hole, but the carton at the back also broke a hole:
Carton:
The most cruel thing is to play a row of cans and disappear in an instant:
Look at the injury of cans, it should be destroyed by the group:
With such destructive power, it is no wonder that the professor emphasized on the whiteboard that he is a professional team and advised others not to try it at home.
Bruce Yeany, a physics teacher, also tried to play cans. From the effect point of view, he used more power:
But when he bombarded the watermelon, he encountered a problem, that is, the quality of table tennis was too small after all, and it broke directly in front of the watermelon:
Is this the only survivor in the table tennis test?
However, watermelon didn’t laugh for long. The teacher unhurriedly increased the weight of table tennis, not much, just filled it with water:
Now, watermelon immediately becomes watermelon juice:
Watermelon: Can’t you afford to play?
However, the most extravagant way to play table tennis vacuum cannon comes from anchors Dianna Cowern and Brandon.They aimed a cannon at an iPhone 11 Pro worth more than 6700 yuan:
How can I put it? The moment when table tennis hits the mobile phone is quite artistic. Maybe this is the happiness of being rich.
(All the articles are professional, please don’t imitate them at home.)
(Part of the picture material in this article comes from the Internet, only for learning and communication.)
References:
https://www.youtube.com/watch? v=bAKqzAzfXKQ
https://www.youtube.com/watch? v=msgfm4DHiyc
https://www.youtube.com/watch? v=-HfaLqmRO1k
https://www.youtube.com/watch? v=wBY3Z4F0dxk
https://www.youtube.com/watch? v=YYNCGZCul1Q Physics Girl https://www.youtube.com/watch? v=rk-6wHimbUs
https://www.youtube.com/watch? v=JYivWedGCKc
https://www.youtube.com/watch? v=ts7v07lXmTQ
https://www.youtube.com/watch? v=nIL3HN4PQlI
https://www.youtube.com/watch? v=Z52yCL3tSGQ
https://www.youtube.com/watch? v=whkCwx2axQM
https://www.youtube.com/watch? v=87Cpe4bJn0U
Source: Mad Pill Science
Editor: xx
Reporting/feedback
Everyone is searching.
The table tennis movement in the competition includes the table tennis falling from a height when it is advancing. The jumping height is the fastest table tennis attack speed, and the fastest table tennis attack technology is () Fast speed is one of the outstanding characteristics of table tennis. The table tennis rules stipulate that the ball should be thrown when serving.



issue

Wake up in the starry night

Please ban table tennis, because table tennis can cause unimaginable harm in some people’s hands, especially in the hands of water injectors, which can easily shoot people in the eyes.

2020-09-02

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Liyue 8l

Remember+

2020-09-05

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Single-player small game enthusiasts

Forgot to be funny. That’s it?

2020-09-04

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All 4 replies

Liu Fang the butcher

Vacuum pump is very expensive!

2020-09-02

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Meteor star gap

Mechanical vacuum pump can play, but it’s not that powerful. But it’s much better than vacuum cleaners

2020-09-03

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answer

Liu Fang the butcher

To achieve the effect in this article, the Roots vacuum pump with a million rmb will start!

2020-09-02

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All 6 replies

Lever and his friends’ daily life

L: hey! A, I brought you …
L was used by A to play table tennis …? Killed)
(l was born again)
A: Er … Hug …
(A is eliminated by cause and effect)
(a is born again)
(A is eliminated by cause and effect)
(a is born again)
(A is eliminated by cause and effect)
(a is born again)
A: stop! I surrender! I surrender!

2020-09-02

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Lever and his friends’ daily life

L:……
L:A……
A: I don’t know. Don’t ask me.
L:U……
U: what is quantum?
L: Er … ……Sans, you explain.
Sans:zzzzzzzzzzzzzzzzz ……
L:SSSSSAAAAAANNNNNNSSSSSS! ! ! ! ! !

2020-09-04

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Natural selection region

Enthusiasts in science field

Is the quantum state macroscopic, and the collapse state is realized through self-observation?

2020-09-04

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answer

All 4 replies

Azul ink rain

How are light particles produced?

2020-09-02

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answer

Natural selection region

Enthusiasts in science field

As a result, you are trapped in the track of the curvature engine and can’t move.

2020-09-04

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answer

Think about it.

Start my curvature engine quickly

2020-09-04

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All 4 replies

mp364m

What I lack are table tennis and cannons? What I lack is an Apple phone!

2020-09-02

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Maliania, the blade of Michella.

This kind of air cannon seems to be at the level of one million RMB.

2020-09-02

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T’s advantage lies in my T.

I thought, this air cannon may be more valuable.

2020-09-02

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Super snow leopard MVP

All the articles are professional, please don’t imitate them at home?

How to imitate? 1.8 joules into the orange!

2020-09-02

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Fengqi captain

And use interchangeable words. What is an orange?

2020-09-02

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0321426as

I just want to ask: how expensive is this table tennis? The inferior table tennis we used, the speed of which was only over 20 kilometers per hour, was smashed by our table tennis racket and split in half.

2020-09-02

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Bodhi shines all over.

However, Xiao Pang broke the ball with a backhand at the World Championships several times and flew directly in half.

But Zhou Yu’s time …

It’s almost a sense of sight after being shot.

2020-10-14

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Theoretical progress

More than 20 kilometers per hour is less than 10m/s, and nobody can run fast. You can smash the ball. . . 9.18 complain about the business!

2020-09-03

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All 5 replies

Tianxing lost his heart

Curvature can be used next time

speed up

2020-09-02

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Tianxing lost his heart

True light

Particle strike

2020-09-13

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answer

Maybe it’s a tomahawk

Wait, why did the earth fall?

2020-09-02

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Kawakaze Jiangfeng z6

The quality of water-injected table tennis is 20g, and the known exit speed is 1600km/h, that is, about 440m/s, and the kinetic energy is equal to one-half mass times the square of speed, and its kinetic energy is about 20 * 440 2/2 coke, which is calculated to be 1.93 * 10 6 coke, which can be approximately counted as 2,000,000 coke watermelon: I thank you tm.

The kinetic energy of this table tennis ball far exceeds the upper limit of 1.6 joules, so

//

@ account has been cancelled.

This content is temporarily invisible.

2020-09-02

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answer

Angry dung beetles

What did you say? I can’t understand it. Please be more specific.

2020-09-03

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Qingluan glazed lamp

An hour ago.

2020-09-02

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Drama loves z1.

Want to do it, is it illegal?

2020-09-06

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v_qiu

Well, the speed of leaving the chamber exceeds the standard. Whoever tries it in China is illegal.

2020-09-02

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Elegant skn0624

Mythbusters is a real popular science program.

2020-09-02

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Luoguodaren

The writer of the article must be a graduate student with severe internet addiction, and he is flying like a kite.

2020-09-02

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Yan’s terminator z fu soul Soviet shirt z

Bench (only after reading it)

Don’t spray funny.

2020-09-02

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luckgodmo

Won’t the air in table tennis explode under vacuum?

2020-09-03

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Subway planning designer

If you use billiards, the power is even harder to imagine.

2020-09-02

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Juesheng Nanmo

This is one of the reasons why the per capita consumption of resources in the United States ranks first in the world. Just like PINKRAY  Jr. knows what it’s like to have three tones a year, he wastes a lot of experimental props, sees foreign children doing domino experiments on TV, and there are a lot of things on the Internet that are similar to putting people into shredders.

2020-09-02

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Thunder and lightning doctor sheep call animals.

We China people, just addicted to mobile phones every day, laughing to death, China is silent?

2020-09-02

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eyrbxjeusus

Boy, I won’t watch the funeral film without this thing.

2020-09-02

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Damn dog

The martial arts in the world are only fast and unbreakable.

2020-09-02

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kn12A

Faster than F16, air defense ball

2020-09-02

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Top health care for adults: exercise

Text | Rotating Sunshine (rich book author)

For adults, exercise is the most cost-effective way to keep fit.

At the end of December 2021, Yuan Jingtian, a 40-year-old rice expert in Sanya, passed away due to illness.

When we feel sorry for expert Yuan, we should also realize the importance of keeping healthy.

I remember reading such a passage:

"We can’t control whether the future is rich or poor, when the cause will develop, and how others evaluate us.

But at least we can control our bodies and keep them in the best condition. "

Health preservation is a magic weapon to maintain the best state of the body. For adults, exercise is the most cost-effective way to keep fit.

Insisting on taking exercise as the top regimen is a homework that we need to work hard to do.

  • Exercise gives back to our state of physical and mental health.

Writer Liu Na wrote in "Flowers in Leisure":

"Whether it is a better job, a better company, and a better move forward, we need to give our physical and mental batteries full of energy."

Exercise, like a battery that charges our body and mind, can make us have a healthy body and a good mental state.

Academician Zhong Nanshan, who is over 80 years old, is still fighting in the front line when the epidemic in COVID-19 is raging, maintaining high-intensity work, relying not only on deep scientific research reserves, but also on a strong body.

Zhong Lao’s good state benefits from persistent exercise. In the past few decades, he has exercised at least three times a week for more than an hour each time, which has become his unshakable habit.

Grandpa Zhong Nanshan said, "Exercise plays a key role in my health. The length of life, mostly does not depend on aging and disease, but a normal lifestyle.

Nowadays, it is precisely because many young people have not developed a correct lifestyle that various diseases will appear in their bodies and their organs will age faster. "

The sweat we shed for sports will one day be returned to us with a strong body and a good mental state.

At the same time,Whether it is to drive away confusion or to fight anxiety, exercise is one of the simplest and most practical methods.

Sammi Cheng, a female star, once suffered from severe depression. For a time, she overeated, resulting in a completely out of shape.

She is also getting more and more anxious, and her body and mind are on the verge of collapse.

In order to get rid of her bad state and restore her body and mind to a healthy level, she followed the doctor’s advice and began to try moderate exercise.

She started running for eight kilometers every day, and she persisted for more than ten years.

Although she is nearly 50 years old now, she is still well-proportioned and full of energy, which vividly explains the story that "time never defeats beauty".

Insisting on exercise will make us have a state of good physical and mental health, so that we can calmly resist the traces of time.

The stage of a person’s life is not in the eyes of others, but in his own heart.

We insist on sports, not to win applause from others, but to broaden the length of our lives and the width of our hearts.

  • Exercise can help us form the habit of self-discipline.

Russian educator ushinski said: "Good habits are the capital that people store in the nervous system. This capital will continue to grow, and a person can enjoy its interest all his life."

Exercise can help us form the habit of self-discipline, so as to salvage more light and hope in life.

The writer Haruki Murakami has been running for at least one hour every day since 1982.

In the book "What Do I Talk about When I Run", he recorded his running mood for 36 years and his daily feelings.

It takes a lot of perseverance to insist on exercise, but Haruki Murakami thinks, "I don’t want to run today, so I just run. This is the way of thinking of long-distance runners."

He gets up at 4 o’clock every day, writes for 5 hours, runs for 1 hour or swims for 1.5 hours in the afternoon, then reads and listens to music, and goes to bed at 9 o’clock in the evening. Whenever I started writing a novel, this routine never changed.

To outsiders, Murakami’s writing life is a bit rigid, like a Swiss mechanical watch, and every minute is not bad.

But Haruki Murakami himself knows that this habit of self-discipline has benefited him a lot.

Writer Haruki Murakami wrote in his autobiographical novel: "For more than 30 years, I have never felt that writing is a hard job, and I have never encountered a low tide."

Insisting on exercise has helped him form the habit of self-discipline. He moved the habit of self-discipline into his creation, thus gaining a reputation in the literary world.

Although for most of us, even if we persist in exercise, it will not change our lives dramatically, and we will still be anonymous in the vast sea of people.

But insisting on exercise and getting up early will make us change subtly:

Netease Cloud once had such a hot comment: "In fact, you can get up early instead of staying up late. The world is still sleeping, parents are still sleeping, the boss is sleeping and the teacher is sleeping;

The whole world is still sleeping, so you can watch the sun rise slowly and feel that the light will always come;

The people you care about will wake up slowly, the world is still moving slowly, and you will still have your own time. "

Persisting in exercise and getting up early will give us a brand-new state to treat life, thus continuing to write about beauty in ordinary daily life. This is also the compound interest effect of self-discipline.

Because time knows, there has never been any life, only a lot of accumulation.

  • Exercise can make us more resilient.

Angela duckworth, an American psychology professor, through the study of West Point Military Academy, came to the conclusion that:

"The core element of a person’s success is not IQ, EQ, family background, or so-called test scores, but the person’s psychological resilience, or anti-vulnerability. "

Sports is a powerful weapon to exercise our psychological resilience.

Because many sports have their own competitive characteristics. As long as you participate in sports competitions, you will win or lose.

If you participate in sports regularly, you won’t care about winning or losing for a while, thus making people more resilient.

In his New Year’s Eve speech in 2022, Luo Zhenyu talked about one thing that he went to see 60-year-old Yu Minhong:

"I asked him, do you exercise at ordinary times? He immediately got up and did 10 push-ups, which made me dumbfounded.

What I envy is not only his body, but his energy. New Oriental’s education and training business was frustrated, but it’s okay. People started all over again and worked on agricultural products. "

Yu Minhong, 60, can get up immediately and do 10 push-ups, which means that he should spend a lot of time on exercise.

In fact, Yu Minhong has always attached great importance to sports. He once advocated in his speech that "every child should practice at least one sport."

As we all know, Yu Minhong is a very resilient person:

He was admitted to the university only after three college entrance examinations, and he also experienced various hardships in the process of starting a business in New Oriental.

In 2021, due to the implementation of the national "double reduction" policy, Yu Minhong’s teaching and training business in New Oriental was frustrated. Yu Minhong was not discouraged, but took the lead in leading teachers to transform into live sales of agricultural products.

Yu Minhong’s resilience in the face of difficulties comes from his usual exercise.

Wang Xiaobo said: "Life is a slow process of being hammered."

Exercise gives us the resilience and confidence to wait for a bright future when facing the life of mountains and rivers.

Ming Chen, the champion mentioned by Qipa, once said: "Nothing in the world is meaningful, but meaning is given by people. And persistence itself is an extremely shining meaning. "

Insisting on exercise is to protect our health and expand more possibilities for our life.

At the beginning of the new year in 2022, I hope that when we make New Year’s resolutions, sports can squeeze into our crowded wish list, and I hope that everyone of us can enjoy sports.

Love sports, this is the way we adults should pursue health.

About the author: Rotating Sunshine (author of Fu Shu) upgrades life awareness with 5 million people. The source of this article is Fu Xiaoshu. The copyright of this article belongs to Fu Shu, and it is not allowed to be reproduced without authorization. Infringement will be investigated.

Note: The picture in this article comes from the Internet. If there is any infringement, please contact to delete it.

Running, skipping rope, climbing stairs … hurt your knee? Don’t worry about it. Look at the exercise guide for the best of both worlds here.

When it comes to exercise, many people are worried about hurting their knees.

So what kind of exercise hurts the knee the most?

The answer is

Sitting for a long time hurts your knees the most!

Long-term sedentary articular cartilage will gradually lose nutrition and "starve to death"

So exercise properly.

To prolong the life of the knee.

But the premise is to master scientific methods.

Avoid unnecessary damage.

Chen xingzuo

china japan friendship hospital

Deputy chief physician of orthopedics

Climb mountains and stairs

Risk of knee injury: ★★★★★★★

When going up the mountain (stairs), your knees will bear about three times your own weight.

When going down the mountain (stairs), the knee will not only bear the impact of the ground, but also increase the wear of the knee.

Therefore, it is not recommended to climb mountains and stairs as daily exercise.

Click on the picture below to see the correct posture of going up and down the stairs.

Key points of climbing without hurting knees:

The center of gravity is slightly forward when going up the mountain and slightly backward when going down the mountain.

Hold the railing to help or use the trekking pole.

Knee injury, good leg first when going upstairs, bad leg first when going downstairs.

Tip: Old people, overweight people and people with knee injuries are best to crawl less. Don’t insist on climbing if your knees are uncomfortable.

rope skipping

Risk of knee injury: ★★★☆☆☆

The risk of skipping rope to knee joint is mainly related to the venue.

Generally, the concrete floor downstairs in a residential area can’t provide an effective buffer for the impact force when skipping rope falls to the ground, and it is easy to hurt the knee for a long time.

Key points of skipping rope without hurting knees:

Choose plastic floor or cement floor to lay plastic mats.

When jumping, keep your feet close together to avoid bending your knees greatly.

The take-off height is 2 cm ~ 4 cm, so as to ensure that the skipping rope just passes through the soles of the feet.

Shake the rope with wrist strength and keep the big arm close to the torso.

jogging

Risk of knee injury: ★★☆☆☆

Jogging rarely causes knee injuries as long as it is not excessive.

A few people with obvious O-leg, X-leg deformity or knee joint disease and overweight should exercise reasonably according to the doctor’s advice.

Key points of running without hurting knees:

Warm up for 5-10 minutes before jogging, and run for 30-60 minutes every day, without paying too much attention to the distance.

Lean forward slightly, swing your arms naturally, and touch the ground with your forefoot.

Keep the speed "breathing, heartbeat is slightly faster but you can talk normally"

Plastic ground and asphalt road are selected for the site, and cement ground is not recommended.

Tip: Treadmill needs to be used with caution. If the setting is unreasonable and the speed is too fast, it is difficult for the average person to keep up with muscle strength and coordination after fatigue, but it is easy to get injured. In addition, the weight is too large, and the injured knee joint should be guided by a doctor.

At the same time, don’t be a "weekend hero" and suddenly go to exercise. Exercise should be gradual, gradually increase the amount, and the weekly increase should not exceed 10%. Don’t be a "weekend hero" and suddenly exercise.

a kind of traditional Chinese shadowboxing (tai chi chuan)

Risk of knee injury: ★★☆☆☆

Some people think that Tai Ji Chuan’s squats like "Ma Bu" will put too much pressure on his knees.

As a matter of fact, many scientific studies actually show that playing Tai Ji Chuan twice a week can not only protect the knee but also relieve psychological stress.

Key points of Tai Chi without hurting knees:

You need to warm up before playing Tai Ji Chuan.

Don’t squat too much in pursuit of beautiful movements.

You need to stand on one foot or rotate your body slowly.

Once knee discomfort occurs, don’t endure it and stop immediately.

Ride a bike

Risk of knee injury: ★★☆☆☆

When riding, people’s weight mainly presses on the seat cushion, and the force on the knees is relatively small, which also helps to strengthen the muscles around the joints.

However, if you ride too hard or take some wrong riding posture habits, it will also have certain health risks to your knees.

Key points of cycling without hurting knees:

Adjust the height of the seat to: when the foot steps on the lowest position, the knee joint slightly bends about 170.

Hold your head high while riding, keeping your knees and toes facing forward.

Keep riding at a constant speed, and don’t suddenly increase the speed by force.

Exert your thigh, and step on the pedal with the first third of the sole of your foot.

Tip: If there is obvious discomfort in front of the knee joint when riding a bicycle, it is necessary to minimize such activities.

Click on the picture below to see the details of riding a bike correctly.

swim

Risk of knee injury: ★☆☆☆☆☆

When swimming, the body is basically parallel to the water surface, and the knee joint is basically free of load, so it is best for the knee joint.

However, patients with knee injuries should avoid breaststroke as much as possible. Water resistance will impact the knee joint when breaststroke kicks, and long-term high-intensity breaststroke may aggravate the symptoms.

Tip: Freestyle and backstroke are more recommended to protect the knee joint.

Can knee pads help maintain your knees?

Many functional knee pads only sell a conceptual thing, and one thing that all functional knee pads do is actually heating. Keeping warm is a very important part of knee joint maintenance, because the joint itself is afraid of wet and cold.

Therefore, normal knee pads have two main functions.

1. Keep the knee warm

2. Increase the stability of joints.

If the functional kneepad is non-invasive to the knee joint, it is actually no problem to use. However, some people may be allergic to drugs for knee pads, so they need to be careful.

Knee pads used in osteoarthritis, the most important function is to keep warm;

The main function of knee pads used in traumatic arthritis is to provide extra stability for joints;

Primary synovitis and gouty arthritis may not be particularly important for the use of knee pads.

point out

1. Don’t rely too much on knee pads.

Long-term dependence will lead to muscle atrophy inside the joint, which is actually more unfavorable for the protection of the whole joint.

Especially for relatively young people, we must not rely too much on knee pads, but should make muscle strength stronger.

2, the temperature must not be too high, not too long.

3. Observe whether there is drug allergy in time.

4. Don’t wear too tight knee pads.

Too tight kneepads can easily lead to blood stasis, resulting in poor blood return, which may lead to thrombotic diseases of lower limbs, which may even be fatal.

Guide to the risk of knee injury in sports

Risk of knee injury by climbing mountains and stairs: ★★★★★★★

Risk of knee injury by skipping rope: ★★★☆☆☆

Risk of knee injury due to jogging: ★★☆☆☆

Risk of knee injury in Tai Ji Chuan: ★★☆☆☆.

Risk of knee injury by cycling: ★★☆☆☆

Risk of knee injury in swimming: ★☆☆☆☆☆

Source: CCTV life circle

What is culture? An over-interpreted problem, in fact, it is very simple.

"This man is really uneducated!" "This city has a strong cultural atmosphere."We often talk about culture, but have you seriously thought about it? What is culture?

According to statistics, there are more than 360 definitions of culture given by experts and scholars at home and abroad, and more than 200 are said to be more influential.

British Taylor, the father of anthropology, he in the study of human culturePrimitive culture, the pioneering workIn the book, culture is defined as:"Culture is a complex whole, including knowledge, belief, art, morality, laws, customs and all the abilities and habits acquired by human beings in society."

Yu Qiuyu’s definition of culture is said to be the shortest in the world: "Culture is a spiritual value and lifestyle that becomes a habit, and its final result is collective personality."Not counting punctuation, it is exactly 30 words.

An online essay about what culture is said: A real literate person does not depend on how many books he has read or what school he has attended, but should have four qualities:Cultivation rooted in the heart; Consciousness without reminding; Freedom based on constraints; Kindness for others.I personally agree with this view. Let’s share a few short stories that happened around me.

That winter, after the newly bought house was renovated, I bought Hisense LCD TV. On the first day, the delivery man sent the TV set home and told us that there would be professionals to install and test it tomorrow.

The next morning, when I got up and opened the curtains, I saw that there were snowflakes in the sky and a thin layer of snow had been covered on the ground. I thought at that time: I’m afraid the person who installed the TV can’t come today. Anyway, cable TV hasn’t been opened yet, so you can install it any day. Don’t worry.

About nine o’clock, the intercom doorbell rang in a hurry. I picked up the receiver, and there was a young man on the screen, saying that he had come to install the TV. I was surprised and opened the unit door for him.

When I heard a knock at the door, I opened the door. It was a young man who looked about thirty years old. But he was not in a hurry to enter the door, but stood at the door rummaging through the toolkit he was carrying. It was the weather in March 9, and I let him in, but he refused. He found two shoe covers from his bag and put them on his feet quickly before entering the house.

I smiled and said to him, "It doesn’t matter, don’t be so particular!" He replied: "This is my job responsibility, and it must be like this!"

Young people are quick with their hands and feet, and soon they installed the TV set and taught us how to use it. In the meantime, I handed him a cigarette and he said no; Made tea for him to drink, but he said he was not thirsty.

Standing at the window and looking at his far-away back and a line of footprints left in the snow, my heart was moved by his little move of putting on shoe covers.

At the beginning of that year, we traveled to Taiwan Province. The tourist bus is running on the expressway, and my friend’s three-year-old daughter suddenly wants to urinate. A friend asked the female tour guide if she could ask the driver to stop the car so that her little daughter could go under the car for convenience.

These days, the driver and the tour guide are accompanied all the way, and we are already familiar with each other. There is only a friend’s little daughter and a child in the car. Without waiting for the tour guide to ask questions, the words of the middle-aged male driver came up: "It’s not convenient to park on the road, just let her do it in the car. The urine of the boy is very expensive!" My friend was very grateful to hear the driver’s words.

After parking at a scenic spot, a friend wanted to find tools to clean the car. The driver said to his friend, "You go and play well, just let me do this!" My friend was very touched. Although it is a small thing, it makes people feel incomparable comfort and warmth.

Walking in the square early in the morning, a little girl of four or five years old caught my attention. She stood not far from the dustbin, two small hands were peeling something, and she didn’t see it until she got closer. She is holding two packaged milk tablets in her hand, and she is peeling the packaging tin foil with her small hands. Inadvertently, two tiny pieces of tinfoil fell to the ground. The little girl bent down to pick up the tin foil on the ground and threw it into the dustbin. She stood beside the dustbin and threw the stripped tin foil into the dustbin. When she saw me looking at her, she raised a piece of milk in her hand and gave me a sweet smile.

At noon, we ate at a fast food restaurant in a seaside scenic spot. The sun is like fire outside, and the heat wave attacks people; The air conditioner in the store is open and the temperature is suitable. A little boy of four or five years old has been standing at the side of our dining table. At first, it didn’t attract our attention. There are many people dining in fast food restaurants, and diners waiting for seats are everywhere. In the meantime, I looked at the boy carefully: white skin, clean and decent clothes, small age, neat and orderly hair, not like a wandering child. When we are almost finished, he looks at us from time to time. I’ve seen boys stand for so long and look at us from time to time. I leaned close to him and asked, "What can I do for you? Can I help you? " The little boy told me in a childish voice that he was waiting for our seats. Grandparents are still waiting over there. Following his eyes, we saw an elderly couple with outstanding temperament not far away, standing quietly waiting for their seats. My wife and I quickly finished eating the food on the table and immediately asked the little boy to invite his grandparents. "Thank you, grandparents!" The little boy did not forget to thank him. The elderly couple smiled and nodded to us, and politely said "thank you!" As we were leaving, the little boy waved and said, "Goodbye, grandparents!"

I deeply felt: it is rare for a child at a young age to know the rules and be so polite.

One day, walking in the yard of the community, an old man in front of me was walking with his puppy. Soon, the old man and the dog stopped. I didn’t know what they were going to do, so I slowed down. When I came near, I found that the puppy had just finished excreting. I saw the old man take out a stack of toilet paper from his coat pocket, which was dark in color and thick in texture. The old man pulled out a few pieces, squatted down to pick up the excrement wrapped in the puppy and threw it into the trash can. To be honest, this is the first time I have seen what a dog owner has done. The old man’s behavior is not like a temporary act, but more like a long-term habit. The old man’s actions are moving! I am thinking: If all dog owners can do this, what kind of situation would it be?

Many times, culture is a hidden existence. Maybe we often can’t see the concrete image of culture, but it is obviously very important to us.It will make your thoughts richer, your work more independent, your life more interesting, and your behavior more civilized and elegant, which is not only beneficial to yourself, but also a little contribution to social progress.

Bai Yansong once said: "Whether a person has a culture or not depends not on his studies.How high is the calendar. People with academic qualifications do not necessarily have culture; People without education are not necessarily uneducated. Reading a lot of books, having a high diploma, and having education are sometimes completely different. "

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Chinese and foreign scholars say cultural relics: capturing the "bright spot" of China culture in artifacts.

China news agency, Shanghai, November 25 th: Chinese and foreign scholars say cultural relics: capturing the "bright spot" of China culture in artifacts

China News Service reporter Wang Wei Kang Yuzhan

The World Congress on China Studies and the Shanghai Forum were held at the Shanghai International Conference Center from 23rd to 24th. At a sub-forum held on 24th, Wang Chunfa, director of the National Museum of China, presented a precious cultural relic in the museum-bronze rhinoceros statue with gold, silver and moire patterns in the Western Han Dynasty, from which he realized the unique charm of Chinese civilization.

This statue is in the shape of a rhinoceros, with its head held high and its eyes inlaid with black beads, which is the image of Sumen rhinoceros who lived in China in ancient times; The whole object is decorated with staggered gold and silver moire as thin as hairspring, which is exquisite and gorgeous, and it can be called a fine bronze ware in the Han Dynasty. The bronze statue made of animals shows the concept of harmony between man and nature and the nature of Taoism in ancient China.

"This precious cultural relic not only vividly narrates the past, but also profoundly affects the present and the future, enlightening us to respect history, respect our predecessors, respect nature and protect the environment." Wang Chunfa said that human knowledge is accumulated through exploration from generation to generation, and it should be passed down from generation to generation. Chinese and foreign scholars are welcome to the National Museum of China to feel the moving place of the bronze rhinoceros statue with wrong gold, silver and moire.

What are the China cultural relics that foreign scholars are interested in? In the face of a reporter’s question from China News Service, Han Yili, a former associate professor in the Literature Department of Moscow Humanities University, made a list on the spot-Oracle Bone Inscriptions, bronzes, silk books of Mawangdui … Some of them were related to the topic of Zhouyi he studied, and the other part was out of his personal interest.

In Han Yili’s view, the importance of ancient cultural relics and historical documents lies in helping people truly understand the ancient world outlook and living conditions. Compared with some subjectively recorded words, real artifacts can reflect a period of history more intuitively. "Many cities in China have their own museums, so that everyone can learn history and experience culture from ancient artifacts. How to better protect cultural relics and inherit culture is where we should learn from China. "

Yi Xin, an international student from Shanghai University in Mexico, immediately thought of blue and white porcelain. "I found that China’s blue and white porcelain is very similar to some artifacts I saw in Mexico. Later, I read the literature to know that these artifacts really came from China. Exploring how these artifacts arrived in Mexico from China and looking for connections between different cultures made me feel very interesting. "

Yi Xin told reporters that China has a long history and China culture has many "bright spots", which let her know the real China from different angles. "We will not stop exploring China, because there are many things worth studying here." (End)

Chinese culture has an eclectic and open mind.

Source: People’s Daily-People’s Daily

Eclecticism is a kind of wisdom. Han Yu said in "A Solution to Learning": "Jade cinnabar, red arrow and green cheese, cattle and horses, the skin of defeated drums, all of which are collected and stored, and those who are ready for use are also good doctors." This means that a clever doctor will put away all kinds of things for a rainy day, which means to have both and everything. Eclecticism is also a kind of mind. Culturally, it is to keep an open mind, actively learn from all the outstanding achievements of human civilization, learn from others and use them for our own use.

习近平总书记在文化传承发展座谈会上指出:“中华文明具有突出的包容性”“决定了中华文化对世界文明兼收并蓄的开放胸怀”。中华文化的这种开放胸怀具有深厚历史底蕴,在新的时代条件下不断彰显,为文明发展拓展了广阔前景。

中华文化自古就有兼收并蓄的开放胸怀。中华文明是世界上唯一绵延不断并以国家形态发展至今的伟大文明。对世界不同文明兼收并蓄,为文明发展不断注入活水,是成就中华文明绵延不断的重要原因之一。中外文化交往、文明交流的故事不胜枚举。2100多年前,汉代使者张骞自长安出发,出使西域,开始打通东方通往西方的道路,此后一条横贯东西、联结欧亚的古丝绸之路逐渐开辟出来。这条路成为经贸往来之路,也成为不同文明交流互鉴之路。唐代僧人玄奘西行求法,往返17年,带回佛教经典600多部,并积极进行翻译传播。佛教在中国长期演化,儒释道三教合流,给中国人的宗教信仰、哲学观念、文学艺术、礼仪习俗等留下深刻影响。明代徐光启与来到中国的西方学者利玛窦共同翻译《几何原本》,被认为是西方科学传入中国的象征之一。明清时期,一批精通儒释道的伊斯兰学者,将伊斯兰文化与儒家文化结合,对促进伊斯兰教中国化产生了深远影响。

Chinese culture has an eclectic and open mind, which has profound historical reasons. In ancient China, there was a super-large population and region, with a long-term leading level of economic development and frequent economic and trade exchanges with other countries and regions, the most prominent being the formation of the Silk Road on land and the Silk Road on the sea. These economic and trade exchanges have not only promoted economic prosperity, but also brought about the exchange and integration of science, technology, culture and art between China and other countries. At the same time, an important concept in Chinese "harmony" culture is to value harmony and harmony among all nations, and to advocate that different countries treat each other peacefully and live in harmony. China people regard the world as the world and think that the world belongs to one family. Many ancient rulers also saw that cooperation and exchanges between countries were far more conducive to stability and development than conquering wars. In addition, China’s ancient thought of practical application advocated "unity of knowledge and practice, bowing to behavior", opposed empty talk and advocated solving practical problems. Therefore, methods and means that are beneficial to social development and effective for improving people’s livelihood can be learned and used by me. In this way, a pragmatic and aggressive attitude is formed. When people come into contact with excellent foreign cultures, systems and arts, they are more willing to learn from them.

到了近代,马克思主义传入中国,给古老中华文明注入新的活力。中华文化兼收并蓄的开放胸怀与马克思主义的世界眼光、全球视野和全世界无产者联合起来的开阔胸怀具有高度契合性。中华优秀传统文化包含着天下为公的大同理想、民为邦本的民本思想、修齐治平的家国情怀、“天行健,君子以自强不息”的奋斗观念、知行合一的实践哲学等,这些思想观念、价值追求与马克思主义理论具有高度契合性。这种高度契合性为马克思主义同中华优秀传统文化相结合提供了条件。中国共产党人将马克思主义作为自己的信仰,深刻把握这种契合性,把马克思主义基本原理同中华优秀传统文化相结合,让马克思主义成为中国的,用真理力量激活古老文明,不断推动中华优秀传统文化创造性转化、创新性发展。

习近平总书记指出:“中华文明是在同其他文明不断交流互鉴中形成的开放体系。从历史上的佛教东传、‘伊儒会通’,到近代以来的‘西学东渐’、新文化运动、马克思主义和社会主义思想传入中国,再到改革开放以来全方位对外开放,中华文明始终在兼收并蓄中历久弥新。”中华文化始终以兼收并蓄的开放胸怀与其他文化交流交融,不仅造就了丰富多彩的中华文明,而且为人类文明贡献了中华文化宝藏。

人类社会走向冲突还是繁荣,很大程度上取决于如何对待不同文明之间的差异。中华文明兼收并蓄的胸怀、博采众长的态度对于促进人类文明进步具有重大意义。中国共产党立志于为人民谋幸福、为民族谋复兴,为世界谋大同、为人类谋进步,弘扬和平、发展、公平、正义、民主、自由的全人类共同价值,倡导尊重世界文明多样性,以文明交流超越文明隔阂、文明互鉴超越文明冲突、文明包容超越文明优越,促进各国人民相知相亲,携手促进人类文明进步。

习近平总书记指出:“交流互鉴是文明发展的本质要求。”我们要通过深化人文交流互鉴消除隔阂与误解、促进民心相通,推动构建全球文明对话合作网络,丰富交流内容,拓展合作渠道,努力架起人与人之间情感沟通的桥梁,拉紧国与国之间加深理解和信任的纽带,共同建设一个开放包容的世界。继续保持兼收并蓄的开放胸怀,不忘本来、吸收外来、面向未来,立时代之潮头、发时代之先声,我们一定能不断创造中华文化新的辉煌,建设中华民族现代文明,推动建设更加美好的世界。

(作者为中国社会科学院哲学研究所副所长)《 人民日报 》( 2023年08月07日 09 版)