Do you need hot cars in winter?

In cold weather, whether it is necessary to warm up the car has always been a concern of car owners. In some areas, the engine needs to run at high idle speed for a period of time to reach the normal working temperature. Specifically, the fast idle speed of cold car is to let the engine run at a high speed for tens of seconds to about 1 minute, and after the water temperature reaches the temperature set by the driving computer, the idle speed returns to normal. The normal working temperature of the engine is generally 80-90℃, and the calibration of individual engines is about 100℃, but it is not necessary to make the engine reach this temperature in daily hot cars. Generally, the coolant temperature is 60℃ and the engine oil temperature is above 50℃, which can meet the requirements. In addition, the fast idle speed of the cold car is not only for the temperature of the engine, but also for the engine to inject more fuel to preheat and let the three-way catalyst enter the working temperature as soon as possible to reduce automobile emissions. A secondary air pump is also installed in the American standard large-displacement car to preheat the three elements and control emissions during idling. Therefore, it is necessary to warm up the car in winter, but it is not necessary to warm up the car for a long time.

2.0T small steel cannon, brand-new 2023 Volkswagen Golf GTI launched.

Text/Theseus

Volkswagen is a world-famous manufacturer, and its global sales volume is second only to Toyota, ranking second in the world. In the domestic automobile market, Volkswagen is also very popular and has a good sales volume. Volkswagen has been developing in China for 40 years, which has established a good brand image in the hearts of consumers and has also become the benchmark of automobile brands. As a classic model of Volkswagen, Volkswagen Golf has been loved by young consumers for many years with its fashionable appearance and excellent mechanical quality. Golf GTI, as the top model of golf series, has outstanding performance and is known as a small steel gun, which is pursued by young consumers. Recently, FAW-Volkswagen announced the official launch of a brand-new golf GTI model, which is equipped with a better power system and a more fashionable and sporty appearance. The guide price is 229,800 yuan.

[Cheyou Headline-CheyouNo.-Zhidian Automobile]  

In terms of appearance, GTI is obviously more refined in appearance than ordinary golf. Adopt flat front design, through design, and the addition of red decorative strips highlights personality and movement, which is full of movement. Large-size air intake grille with blackened honeycomb structure inside brings brand-new visual impact and looks more sporty and domineering. In addition, the brand-new GTI adopts the brand-new LED headlight group design, which looks sharper and improves the aggressiveness of the whole vehicle, while the word GTI is also located at the left headlight corner, which instantly improves the advanced feeling of the whole vehicle.

The side of the car body is not much different from the ordinary version. The integral side skirt design makes the car body lower. The side lines of the vehicle are smooth and concise, and the classic body shape is still dynamic, but the latest 17-inch sports aluminum alloy wheels are added, which adds a sporty atmosphere. The lower part of the door and the rearview mirror shell are decorated with silver, which enhances the luxury of the vehicle.

At the tail, the tail design of the new golf GTI is very special, with distinct layers, and the integrated body shape design is selected. The taillights are more sharp, and the rear spoiler is large, with black surrounding at the top and bottom and double exhaust at both sides, showing the demeanor of a high-performance car.

When it comes to the interior, Golf GTI still adopts the ordinary version of golf design style. The center console design is almost the same as that of golf. The embracing center console that is biased towards the cab design adds a sense of movement with GTI’s exclusive red control interface. The perforated leather material and the fur cover of the seat make people feel comfortable and can reflect the luxury inside the car. The brand-new 10.25-inch LCD instrument panel, central control suspension screen and three-position multi-function steering wheel design reduce a lot of physical buttons and improve the sense of science and technology in the car. The GTI version adopts a new integrated sports plaid seat to provide better support and comfort. In terms of configuration, the new car is equipped with 30-color ambient lights, reversing images, constant-speed cruise, multiple driving modes, automatic parking, uphill assistance, variable steering ratio, electric sunroof, keyless entry and start, remote start, low-speed driving warning, active noise reduction, 8-speaker speakers, automatic air conditioning and so on. The main and passenger seats are equipped with airbags, front and rear head air curtains, knee airbags, passive pedestrian protection, tire pressure alarm, fatigue driving tips, etc. The new golf GTI can enjoy the blind spot image on the side of the car, the openable panoramic sunroof, leather seats, front seat heating and so on. From the configuration of golf GTI, a variety of intelligent configurations make consumers more convenient and worry-free.

In terms of power, as a small steel gun, its power performance is naturally the most concerned by everyone. The new car is equipped with a 2.0T engine, with a maximum power of 162kw, a maximum horsepower of 220 horsepower and a peak torque of 350 Nm. With the DQ381 7-speed wet dual-clutch gearbox, the speed-up time of 100 kilometers is only 7.2 seconds. It can be seen that the performance of this new car is very strong. In terms of chassis, the new Golf GTI has also updated the subframe, reinforced bearing, front double wishbone suspension stabilizer, front six-piston brake system and ceramic front brake disc, and the ground clearance of the chassis is reduced by 25mm compared with the ordinary version of golf. It is equipped with suspension system, brand-new shock absorber and valve system, which are unique to the new golf GTI, improving the driving quality and meeting the performance needs of young people.

Write at the end:

The appearance of the 2023 Volkswagen Golf GTI has attracted the attention and heated discussion of the majority of riders. Its strong performance, sporty appearance and interior design, high-quality driving experience and other aspects show its strong quality. The new Volkswagen Golf GTI not only continues the excellent tradition in the past, but also injects more innovation and high-tech configuration, making it a good choice for young consumers.

Sticking to his post | He waited for a 20-minute reunion dinner for 7 years.

During the Spring Festival holiday, there are always some people who can’t go home because of their work, but for many people, wherever they are, the Year of the League is Chinese New Year. Follow the camera together and witness a special reunion dinner.
Li Ningyun is a motor train driver in Chongqing Locomotive Depot’s Chongqing Wanke Special. His home happens to be in Wanzhou. Although he travels to Wanzhou several times every day, it is only an extravagant hope to go home and have dinner with his family. He hasn’t been home for a group year for seven years. He took the latest EMU to Wanzhou North Station today.
Arriving at Wanzhou North Station at 22: 45, Li Ningyun’s home is less than 12 kilometers away from Wanzhou North Station. For him, it is so close and so far away.
Li Ningyun, EMU driver of Chongqing Locomotive Depot:No one is allowed to leave the apartment for the night on the north side of Wanzhou, because they will get up at 4 o’clock tomorrow morning and then start their work tomorrow.
To Li Ningyun’s surprise, Li Haiyun, his younger brother, came back from abroad, specially bought a ticket for this train, and told his parents in Wanzhou in advance to prepare a surprise for Li Ningyun’s small year in the south.
Li Ningyun’s father Li Shengan:Usually we don’t see him. When we miss him, we can only look at his car outside the fence of the station and wave to him.
In order to prepare a good meal for their son, Li Ningyun’s parents also came to the vegetable market early and carefully selected the ingredients for the reunion dinner. When I got home, my mother cut vegetables and my father cooked them, all of which were Li Ningyun’s favorite dishes.
Under the coordination of the railway staff, parents came to their son’s apartment early with anticipation and arranged the reunion dinner in advance.
Li Ningyun, EMU driver of Chongqing Locomotive Depot:I have been working for more than 7 years, and I haven’t spent much time with them for the New Year. Let’s go back and spend the New Year with them when our son is busy.
Li Ningyun ate the reunion dinner in a hurry for only 20 minutes, but he felt the love of his parents and the warmth of home. In these 20 minutes, they have been waiting for seven years, and their next group annual banquet will be unknown.
Reporting/feedback

"Video" is healthy and has a bright future! Students at home and abroad wish readers of Yangcheng Evening News a Happy New Year’s Day.

05:07
The pace of the new year is getting closer and closer, and the festive and peaceful atmosphere is filled in the air. The new year is full of our expectations and hopes, and it is slowly opening. On this festive season, many China students studying abroad are still overseas due to their academic arrangements, and many foreign students in China will spend New Year’s Day in China in 2024. At this special moment, they sent their most sincere wishes to readers and friends through Yangcheng Evening News.
In the past 2023, many international students set foot on the overseas study trip for the first time, and they groped and grew up alone with a strong homesickness. "I embarked on the journey of studying abroad for the first time, far away from my family, and my homesickness flooded into my heart. In the dead of night, my thoughts about my family and friends often appeared in my dreams, but I was not knocked down by strong thoughts and the pressure of life. On the contrary, I began to write poems, express my true feelings in words, and tell every mood." Meng Yuchen, who is now studying comparative literature at the University of Edinburgh in the UK, said. "This year, I saw a bigger and farther world. I have experienced the customs of different cultures and the perspectives of subject learning under different teaching modes. Living away from my family and friends has also taught me to be alone with myself and honed my life ability, "shared Ying Yi, who is now studying statistics, economics and finance at University of London.
There are also some international students who spent a rich and fulfilling year in 2023 in China. Zhang Hao, a Bangladeshi business Chinese major at Guangdong University of Foreign Studies, shared: "I had a very full life in 2023, and I took part in many activities. Among them, there is a computer design competition for college students in China and a sports meeting in the sports center. I also went to Chongqing on behalf of our school. " "In the past year, in the dormitory and in the classroom, I have made many friends from all over the world and met many students from China. At the same time, in Guangzhou, a city full of fireworks, we also walked around and saw a lot. Now we have seen a lot, then we ate a lot and played a lot of new things. " Chen Ziyang, from Malaysia and now studying in the history department of Sun Yat-sen University, said.
In the days of saying goodbye to the old and welcoming the new, many international students also expect that they can achieve better themselves in China in the future. Fang Yijia, who is from Malaysia and now studying in the Chinese Department of Sun Yat-sen University, said: "In the new year, if there is enough time, I hope to visit more other places in China in the future, such as the Forbidden City in Beijing, the West Lake in Hangzhou, the watchtower in Jiangmen, etc. I want to know more about the customs of these places, and I hope that I can continue to gain more knowledge, continue to make progress and become better during my study trip at CUHK." Feng Yinyu, from Venezuela and now studying business Chinese at Guangdong University of Foreign Studies, shared: "In 2024, I look forward to continuing to learn and grow in a multicultural environment. Make greater progress in personal growth and academics, and make better plans for your future career! "
The bell of the new year is about to ring, and students at home and abroad have sent their most sincere wishes to the motherland and the readers of Yangcheng Evening News. Zhang Hao blessed: "I wish you good health, all the best and a bright future!" Meng Yuchen sent a wish: "I sincerely wish the motherland better and better and prosperous! May our country be brilliant in its development! The country is safe and the people are happy! May the mountains and rivers of the motherland be more beautiful and the heritage of civilization become more profound. " "I wish all those who are still working hard for their goals can get what they want and do it smoothly!" Fang Yijia blessed.
The gongs and drums on New Year’s Day are about to ring, and warm wishes have been delivered. On this occasion, I also wish students at home and abroad a happy New Year’s Day, a healthy family and successful studies!
Text, video | Reporter Sun Wei Intern Li Bo Hu YuxiFigure | Photo courtesy of respondents
Reporting/feedback

How many of these technologies from NASA have you seen?

  Today viewpoint

  Aerospace gives people a special feeling of "high cold", which reminds them of advanced fighter planes and magnificent space stations that ordinary people can’t see, touch or use.

  A few days ago, the well-known American website "GOBankingRates" took stock of 25 kinds of technologies originated from the National Aeronautics and Space Administration (NASA) in our daily life, which spread all over our "food, clothing, housing and transportation". They come from the distant sky, but they are convenient for our daily life.

  Food: baby milk powder, freeze-dried fruit, food safety packaging.

  At present, more than 90% of infant formula in the United States contains microalgae. It was originally the product of NASA research, the purpose of which was to test the potential use of algae as an oxygen "recycling agent" in space travel.

  Freeze-dried fruit is a common snack. However, the purpose of NASA’s development of freeze-drying technology is to make the fruits in the Apollo mission easier to carry, and this technology can maintain 98% nutrition with 20% quality.

  In order to ensure the safety and quality control method of space flight food development, NASA has now become a food industry standard to protect the food safety of consumers all over the world.

  Life: memory foam mattress, scratch-resistant lenses, anti-ultraviolet sunglasses, cordless vacuum cleaner, Nike air-cushion sports shoes, space blankets, ski boots.

  Comfortable memory foam mattress can fully fit the human body and relieve stress, which is necessary for many families. Memorable foam was not originally used to make mattresses. It was originally developed by NASA to cushion the impact of spacecraft landing on astronauts.

  Compared with ordinary glass, scratch-resistant lenses have a longer life. In fact, the scratch-resistant coating is a "by-product" accidentally discovered by Jet Propulsion Laboratory (JPL) under NASA when researching the diamond hard coating for aerospace.

  In 1980s, two scientists from JPL developed a kind of welding glasses, which can absorb, filter and scatter the strong light emitted during welding. Later, this technology was widely used in anti-ultraviolet sunglasses.

  Initially, Black&Decker was ordered to develop a portable device for Apollo and Gemini missions, which was used to extract samples from below the surface of the moon. This technology has been improved to become a "cordless vacuum cleaner".

  Nike air-cushioned sneakers use the patent of "Blow Rubber Molding" obtained by M. Frank Rudy, a former engineer of NASA. The initial application target of this technology is spacesuit.

  The space blanket is insulated and heat-preserved, which is an essential item for survival in the wild and marathon. But it was originally developed by NASA to protect spacecraft and astronauts at low temperatures.

  In addition, the technology used by NASA in the joints of spacesuits has been improved and used in ski boots, which improves the athletes’ control ability in skiing.

  Home: swimming pool purification system, household heat insulation materials.

  In order to resist the extremely low space temperature, NASA made an insulating material called "radiation barrier" from aluminized polyester. According to JPL, aluminized polyester is now used in most household insulation materials.

  In 1960s, NASA developed an electrolytic silver iodide filter to provide clean drinking water for astronauts, and now it is widely used to purify swimming pools.

  Travel: aircraft deicing system, precision GPS, anti-skid groove on highway, better tires.

  According to NASA’s technology transfer plan, civil aircraft can fly in cold weather, mainly due to a thermoelectric deicing system called Thermawing developed by NASA.

  Many mobile phones are equipped with precision GPS technology developed by JPL, and its data comes from JPL global GPS receiver network. Even if there is no wireless connection, you can still use GPS positioning on your mobile phone.

  NASA’s Langley Research Center has developed anti-skid slot technology to prevent aircraft accidents on wet runways. Later, this technology was widely used in expressways.

  In 1970s, Goodyear Company developed a new tire material for NASA Viking Mars probe, which was used in parachute system. This technology was later used to improve ordinary tires, increasing their life by 10,000 miles.

  Electronic products: mobile phone camera, notebook computer, high-power solar cell, wireless headset, mouse, CAT scanner.

  In the 1990s, NASA asked JPL scientists to make a miniature camera that can be installed on spacecraft while ensuring the quality of photography. According to JPL, one-third of mobile phone cameras now use this technology.

  According to the Smithsonian National Air and Space Museum, "Grid Compass" is the first notebook computer in the world. It was first used in the space shuttle mission in 1983, which is one of the inventions of NASA.

  The crystalline silicon solar cells used in the home originally came from the lightweight solar energy system developed by the Environmental Research Aircraft and Sensor Technology Alliance under NASA for electric aircraft.

  NASA has developed wireless headphones for astronauts to facilitate their communication. Now this technology has entered thousands of households.

  According to JPL, a NASA researcher developed a computer mouse in the 1960s, which allowed users to operate on the computer screen and made the computer more interactive.

  JPL initially developed a CAT scanner to scan aerospace components to get advanced digital images to detect defects. Now, it has become a commonly used medical instrument.

  Medical care: cochlear implant, invisible dental appliance, ear temperature thermometer.

  Adam Kiser, an engineer at Kennedy Space Center, used his working experience in electronic, sound and vibration sensor systems in the space shuttle project to develop early cochlear implants by using electric pulses instead of sound amplification technology.

  Compared with the traditional metal appliance, the invisible dental appliance is more beautiful. It is made of transparent polycrystalline alumina, which was originally developed by NASA to track heat-seeking missiles.

  Nowadays, many parents use ear thermometer to measure the temperature of sick babies or young children. According to JPL, this thermometer adopts infrared dissection technology invented by NASA and Diatek.

  There is always one of these 25 technologies that you have seen, touched and used. Aerospace technology can not only be used in high space, but also improve our quality of life after landing, which is one of the driving forces for human beings to explore and fly higher and farther.

  (Science and Technology Daily, Beijing, July 8 th)

A small-scale "world war"! Deeply reveal why the Syrian crisis can’t stop.

       CCTV News:In Syria, this crisis full of pain and destruction has begun to enter its eighth year. From Dongguta to Aflin, from "politicization of humanitarianism" to successive "threats of chemical weapons", these chaos and the wrestling behind the great powers have become the epitome of the chaotic situation in Syria. So, where did this crisis come from? Why has it lasted for seven years and still can’t stop?

one

Image source network

       Time has entered 2018, and the Syrian crisis situation that lasted for seven years has not become clearer.

       The conflict in Dongguta, the re-emergence of humanitarian problems and the self-talk of relevant countries have once again shattered the hope of peace that was ignited by the exit of extremist organizations.

       Not only Dongguta, but also Russian and Israeli warplanes were shot down in succession. The anti-terrorist coalition led by the United States clashed with pro-government forces in Deir ez-Zor, and Turkey launched the "Olive Branch Action" against Kurdish armed forces in northern Syria — — The situation in Syria is more foggy than ever.

       Huntington, an American political scientist, in his book The Clash of Civilizations and the Reconstruction of World Order, divided the "fault line war of civilizations" into three levels: the parties actually fighting and killing each other, the countries directly related to the main participants, and the top core countries — — If the top countries have no intention to end the war, the conflict will continue.

       In fact, the Syrian crisis basically conforms to this theory: if the participants are divided into three levels, the extremist organizations that have lost their momentum only belong to the lowest level, that is, one that fights and kills each other, including the Syrian government, Hezbollah in Lebanon, opposition armed forces, the terrorist organization "Conquest Front" and the "Syrian Democratic Army" led by Kurdish armed forces.

Syrian opposition opened fire on buildings (image source network)

Syrian opposition opened fire on buildings (image source network)

       Above the hierarchy of factions on the ground, there are neighboring countries, including Iran, Turkey, Israel, Saudi Arabia and other Gulf countries. Most of them directly participated in the chaos in Syria and promoted the development of the situation.

       However, although it has great influence on the situation in Syria, the surrounding stakeholders can’t influence the final situation in Syria, because at the top, there is a game between Russia and the United States, two world powers.

       At present, Russia has announced that it has begun to withdraw its troops from Syria, and at the same time, it has promoted several dialogue platforms such as Astana and Sochi in an attempt to solve the Syrian issue as soon as possible. However, the attitude of the United States on the Syrian issue is extremely vague. It has established the so-called "border protection force", set up as many as 20 military strongholds, refused to participate in the Russian dialogue platform, and constantly created obstacles for the political settlement of the Syrian issue on the grounds of human rights and chemical weapons.

Armed men from the People's Protection Force are on alert at the air raid site.

Armed personnel from the "People’s Protection Force" are on alert at the air raid site (image source network)

       There are more than ten participants in the Syrian crisis, and there is also a decisive factor in the absence of the United States. What is more complicated is that the contradictions contained in the Syrian crisis are also different.

       At the end of 2010, the so-called "Arab Spring" swept across the Middle East and North Africa. Since Tunisia, many countries such as Libya, Egypt and Yemen have experienced chaos.

       In March 2011, protests broke out in Syria.

       At the beginning, the main contradiction in Syria was the stay of President Bashar and the reform of the government. However, because of the interests, the protests in those years were used by many parties, including western countries. After seven years of conflict, ethnic contradictions, religious contradictions and sectarian contradictions have already evolved. From the Kurdish autonomy movement to the rise of Islamic fundamentalism in Syria, to the sectarian dispute between Sunni and Shia, the situation has developed beyond everyone’s expectations.

       It is extremely difficult to completely solve any of the above contradictions, coupled with the attempts of many countries in the Middle East to intervene in the Syrian crisis to achieve regional hegemony, the historical grievances caused by the Palestinian-Israeli issue and the Israeli occupation of the Syrian Golan Heights, the refugee tide caused by the Syrian crisis, and the rampant terrorism and extremism in the 21st century — — The Syrian crisis has concentrated most of the major contradictions of mankind for centuries, so it has become a small-scale "world war" after its outbreak.

       Xu Dezhi, a CCTV reporter, said that it is almost impossible for more than a dozen crisis participants to solve at the same time, or at least cool down so many contradictions and sort out the intertwined interests, which is the fundamental reason why, up to now, although many parties are calling for a political solution to the Syrian issue as soon as possible, it still has little effect. Igniting the fuse of war is very simple, but ending a war is beyond people’s control.

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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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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All 4 replies

Azul ink rain

How are light particles produced?

2020-09-02

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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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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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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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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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new energy vehicle

# Article First Challenge # Will new energy vehicles replace fuel vehicles?

Different people have different views on whether new energy vehicles will replace fuel vehicles.

Wang Qing, deputy director of Market Economy Research Institute of the State Council Development Research Center, predicted that by 2025, the annual sales volume of new energy vehicles in China will reach about 17 million, and by 2030, the market share of new energy vehicles will exceed 90%. This means that in the next decade, the sales and influence of new energy vehicles will increase rapidly.

On the other hand, new energy vehicles and fuel vehicles have their own application scenarios. In the short term, new energy vehicles may not completely replace fuel vehicles. This is because there are still some problems in new energy vehicles, such as safety, charging and battery life. If these problems are solved, new energy vehicles may further expand their market share.

However, in the long run, it is an inevitable trend for new energy vehicles to replace fuel vehicles. With the continuous progress of technology and the enhancement of environmental awareness, new energy vehicles will be applied in more fields, including passenger cars and commercial vehicles. At the same time, the policy is also promoting the development of new energy vehicles. For example, some cities have gradually stopped selling fuel vehicles.

To sum up, new energy vehicles may replace fuel vehicles at some point in the future, but this process may take some time. In this process, fuel vehicles and new energy vehicles will

Coexist and compete with each other.

Three "magical" coincidences in history make people doubt that the world is a reincarnation.

In the ancient East, there seems to be a mysterious veil hidden in the long river of history, revealing some amazing strange coincidences from time to time. These coincidences seem to be legends woven by history itself, leaving future generations with deep thoughts, and these stories hover in my heart, making me feel the mystery of the world’s reincarnation between ink and paper.

Let’s focus on the experience of Emperor Gaozu Liu Bang. His life is full of legends, and his leap from Buyi to Tianzi has attracted worldwide attention. But also, an episode that happened in his escape career is even more incredible. According to the report, when Liu Bang passed through a mountain forest, he encountered an unusually white boa constrictor crossing the road, and he cut it in two with his sword without fear. This python can’t help being given symbolic meaning by later generations-it was the test and hint given to Liu Bang by the god of fate, and he declared to the world the possibility of his future success with courage and determination.

Then, we might as well compare the fate trajectories of Qin Shihuang and Emperor Wen of Sui in Sui Dynasty. Qin Shihuang helped the world, burned books to bury Confucianism, repaired the Great Wall, built Epang Palace and built water conservancy, which was a great achievement. However, the grievances created by his harsh and cool laws are like undercurrents. After his death, the Qin Dynasty declined rapidly and eventually collapsed after only a few short years. Hundreds of years later, Emperor Wen of Sui in the Sui Dynasty also created a prosperous era of reunification. However, after the second emperor Yang Guang ascended the throne, his extravagance and tyranny made Jiangshan once again step into the path of subversion. Two dynasties, after the death of the founder, ushered in a similar fate.

Finally, we turn to the story of Zhao Kuangyin in the Song Dynasty and the last son of heaven in the Southern Song Dynasty. Zhao Kuangyin, a general of the Zhou Dynasty, rose to fame in helping the imperial court to quell civil strife and expand its territory, and usurped the seven-year-old throne left by Zhou Shizong from humble origins through the Chen Qiao mutiny. A similar plot was staged again in the last years of the Southern Song Dynasty. When the Southern Song Dynasty was besieged by the Yuan Army and was on the verge of extinction, the young emperor Meng Gong chose to jump into the sea heroically to show his loyalty and loyalty. The two young emperors suffered different but similar fate twists and turns.

When we put these three sections of history together, it seems that we can perceive that the breath of reincarnation is slowly permeating the river of time. Every turn and coincidence is like a chess game arranged by God’s will, waiting for the chess pieces to perform.

But can we really assert that history is reincarnation? I’m afraid we still need to have reservations. Because history itself is made up of countless individual behaviors; It should be noted that although the waves are small, they can gather into an ocean, and people are small, but they can also affect the historical process. These seemingly "magical" coincidences are just a few fragments highlighted in countless events, which does not mean that all history follows a certain established pattern.

Perhaps we should learn wisdom from these stories and study the law: the extraordinary ambition of heroes often indicates extraordinary achievements; Authoritarianism leads to the boiling of national resentment and eventually to its demise; Power translocation is often accompanied by the fading of old forces and the birth of new forces.

To sum up, although history always gives us countless possibilities and associative spaces, every era that needs to learn from the past and diligently explore the true meaning of the laws behind them has its particularity and independence. Anyone can try his best to exert his style and contribute his strength in his position and become a small and powerful wave that pushes history forward.

What is culture? Culture can nourish heart and ambition.

Culture is not knowledge, culture is the pursuit of beauty! Expressed in more concise words, it can be abbreviated as: culture is the sum of language and words.

"Culture" can be expressed in four sentences:

1. Self-cultivation rooted in the heart:

Self-cultivation can be divided into two main contents. First, knowledge literacy is reflected in a person’s IQ; The second is humanistic accomplishment, which is reflected in a person’s emotional intelligence. Therefore, self-cultivation is improved through learning and cultivation the day after tomorrow, so as to achieve the realm of internalization in the heart, externalization in behavior, and integration of knowledge and practice.

2, don’t need to remind others consciously:

Self-awareness means that you know something and take the initiative to do it. The difference between humans and animals is that there are two lives: one is the life of the body; The second is the life of culture. Take away the "culture" tendon, people are just ordinary animals, and people are conscious.

3. Freedom on the premise of constraint:

Freedom is self-determined, without restrictions and constraints. The freedom advocated is a kind of freedom that is harmless to others in society, and it is based on goodness and justice. We should realize that freedom not only means the desire to be liberated from bondage, but also means the responsibility to respect the value of others’ existence. Only within reasonable limits and by using reasonable means can we achieve real freedom.

4. Kindness for others:

The first paragraph of the classic of Chinese studies "San Zi Jing" says: "beginning of life, human nature is good. Sex is similar and learning is far away. " This means that when people are born, their nature is good and their temperament is very similar. But with the different changes and influences of their living environment, everyone’s habits will be different.

If you treat others well, others will treat you well. If you are full of kindness, you can warm the people around you. In daily life and work, it is necessary to be helpful and kind to others, unite with leaders and colleagues, actively create a relaxed and pleasant working atmosphere, and construct harmonious interpersonal relationships.

According to the traditional concept of human beings, culture is a social phenomenon, which is the product of long-term human creation, but also a historical phenomenon and the accumulation of human society and history. To be exact, culture is the way of thinking, values, lifestyle, behavior norms, art and culture, science and technology of a country or a nation that can be passed down and spread. It is a universally recognized ideology that can be passed down for human communication and a sublimation of perceptual knowledge and experience of the objective world.

Culture is the total system of symbols (mainly words, supplemented by images) and sounds (mainly language, supplemented by phonology and notes) created and commonly recognized and used by people in the process of constantly knowing and transforming themselves and nature.

Culture, the afterlife of this life, is the behavior of some people to carry out their life beliefs. When the noblest place in a person’s temperament blooms in all aspects of life, when a person’s aesthetic taste is enough to give life a kind of elegance and flavor-that is culture.

Culture is the best nourishment.

Everything in the world is supported.

The grass and trees are in the wild, and the rain and dew are born to help; Body and mind are in the study, and kissing ink can nourish them.

If the study is a person’s spiritual sanctuary, then the long thing in the study is the pearl in this sanctuary.

Ancestors said: when writing, you can raise pens, when grinding, you can raise ink, when washing, you can raise paper.

When the library is in the library, the supplies of the study room can be spent over the years; If you are always close to things, your body and mind will be spiritually influenced.

Culture is the best nourishment.

The nourishment of life comes from the pursuit of life interest, but also from the immersion of long things.

In the rooms of ancient literati in China, there must be pens, ink, paper and inkstone for the case, and piano, chess, books and paintings for the lent. Besides, there are all kinds of elegant things.

Nowadays, when we see these old things in the study from a distance, we can hear the excited voices of the ancients and see their sincere faces as long as we understand them with our hearts.

They camped in the study, or played in Tibet, or lived in seclusion … and nourished by culture, which built a bright world for us.

Playing with Wen Zang can nourish the heart.

Culture is formed over time, and the way to hide and play can nourish the heart.

Elegance and vulgarity are often the first criterion in the way literati look at artifacts.

Whenever you see a thing, you should judge its advantages and disadvantages, define the realm of elegance with the mind of a gentleman, and create a true rhyme and taste that conforms to the literati’s aesthetics.

There are many beautiful things in the room, and the world is better than Taoyuan.

In the name of the post, the truth is orderly, and Mo Chi is fragrant; Appreciate the boxing stone, clear the supply, exquisite smoke and clouds, and the muscles and bones are towering;

Product green grass and bamboo, elegant room, case into a secluded field; Virtual Lu Qing Kuang, sitting in the dust to release concerns, elegant things Ming Zhen Yun;

Open-minded, all wonderful; Xuan Lang in Zhang’s room is natural and unrestrained.

By writing things in style, you can nourish your spirit.

Gewu, when there is an aesthetic seed, nourishes itself from the traditional scale.

Ancestors said: the piano is silent, the staff is light, the cup is elegant, the bamboo is cold, and the stone is impressive …

In addition to leisure and entertainment, there is a poetic charm in the study, which makes people physically and mentally idle.

If you do what you want from your heart, you will be a man, and you will not be detained, but you will not go beyond the rules.

It is the highest state to understand the nature within a certain statute, conform to the rules and set an example for future generations.

From things and devices, from devices and people, we can make our conscience in things and nourish our true qi in edification.

Living in seclusion with literature can raise your ambition.

China’s philosophy is a philosophy of leisure, and living in leisure can raise one’s ambition.

As the poet Ni Si said:

Reading books on righteousness and reasoning, learning the words of calligraphy and calligraphy, sitting quietly, talking with friends, drinking half drunk, watering flowers and planting bamboo, listening to the piano and playing with cranes, burning incense and frying tea, and going to the city to watch the mountains mean playing chess. Apart from the above, although I have other pleasures, it is not easy for me.

Life is leisure, and long things are companions. Whether reading, posting, burning incense, playing the piano, playing chess or drinking tea, long things in the study are the carriers.

Getting a period of leisure and happiness constitutes a brilliant aesthetic philosophy, which affects the world’s pursuit of leisure and elegance.

Today, we are far away from the luxury of spirit, and today’s dignitaries and rich people do not have such a life, because cultural life is not only material wealth, but also spiritual nobility, which is a real affair.

In this sense, the pursuit of beauty with culture is to immerse beauty in life.

If life is a flower, then culture is soil. May you and I live in peace in our daily life and drop the seeds of beauty and bloom the most wonderful flower.

END