In the evening, my mother said that she would go out to help me buy things and leave me alone at home. I agreed. Not long after my mother left, I began to get scared. It was dark at home and it was raining cats and dogs outside. When I looked out of the window, there were few pedestrians on the road. It suddenly occurred to me that my mother didn't bring an umbrella, and I was in a hurry. I thought: will my mother get wet and wrestle? I've been thinking a lot. I immediately turned off the TV, changed my shoes and went out. It is dark outside. Because I was in a hurry, I accidentally fell down the stairs and made tears come out. I slowly got up from the ground and rushed outside willy-nilly, running in the rain. Finally, I ran across the street. I waited anxiously, thinking: Is this red street lamp broken? Why is it so slow? It's like rushing over. Stamp your feet when you miss me.
Suddenly, a figure appeared before my eyes. "Mom, it's mom." I cried happily. Seeing my mother like this, I couldn't help crying. I handed my umbrella to my mother, who wiped the rain on her face and said, "Really, how did you do this to yourself?" Be careful next time, I can go home by myself. " "No, you can't go home in the rain, or you'll catch a cold." I shouted, and my mother was scared by me. On the way home, I had a heart-to-heart talk with my mother, talking and laughing, and didn't care that it was raining. I'm afraid my mother will get wet in the rain. When she wasn't looking, I slowly moved my umbrella to her side, but I became a "drowned rat". When I got home, my mother found that I was soaked to the skin. I was very distressed and hugged me. I feel something hot in my hand, but it turned out to be-mother's tears. I thought: I must take good care of my mother in the future. She did too much for me before … and then dried her tears. My mother also praised me for being sensible and growing up. I am very happy to hear that, as sweet as honey.
To filter the real peace of mind composition, we must first filter the mentality.
* * * When I was a child, I often complained that I couldn't study quietly. After hearing this, the teacher told him earnestly that as long as he was calm enough, he was not afraid of the noise of the outside world.
Only then did * * * wake up. He recited aloud in the market every morning, and finally he developed extraordinary perseverance and state of mind.
This laid a solid foundation for him to lead the establishment of new China in the future.
If a person wants to succeed, there will be all kinds of factors that bother you, interfere with your judgment and confuse your sight.
In fact, external factors are only a small aspect. What really determines you is your heart.
Man is a thinking reed.
People are different from reeds because they have a thinking mind.
Although the mind is an abstract thing, it is also the most precious and pure thing for people.
People rely on the mind to perceive and touch this complex world. Therefore, if you want to maintain real peace, you must first filter your mind.
* * * can filter out external noise and keep inner peace and clarity, so we can get real peace, look at all problems wisely and finally lead the people to victory step by step.
I have never seen him panic for a moment, whether it was the suppression of the Kuomintang or the blockade of the Japanese army. I think this is the real peace.
Xiang Yu suffered a defeat when he was fresh, and was finally defeated by Wujiang. Why? Because he failed to filter his thoughts.
Xiang Yu's men demanded a breakthrough, but they were besieged on all sides. Xiang Yu can't help but be frightened to disgrace. Did the Chu people surrender to the Han Dynasty? Why are there so many Chu people? So I fled to Wujiang in a panic, but I was afraid that I would be sorry for my elders in Jiangdong, so I killed myself. It's pathetic.
Apart from Liu Bang's stratagem, Xiang Yu's failure lies in his confused mind. He failed to filter his mind, and the last line of defense in his heart was crushed by being besieged on all sides, which also predicted his ultimate failure and death.
There is an old saying: "It is best to attack the heart."
This sentence is very reasonable.
In modern terms, Xiang Yu did not have a strong heart.
The first criterion of inner strength is to be able to filter your mind, wait in line for external interference, stick to your inner beliefs and keep real peace.
Sima Qian filtered out the outside gossip and finally finished Historical Records. Qian Xuesen was able to filter out the pressure from the United States and resolutely returned to China, achieving "two bombs and one satellite" ... so many, too numerous to mention.
Of course, filtering the mind does not mean rejecting everything and being a stubborn and paranoid person. Filtering the soul should be to strengthen the inner ideal, goal and pursuit, to eliminate external interference with great determination, courage and perseverance, to maintain real peace, and then to advance slowly and firmly on the road to success with the arrogant attitude of east, west, north and south.
Only by filtering your own mind can you be truly calm.
I want to do an experimental composition on refraction, filtration and precipitation of water. I did an experiment today. I put chopsticks in water.
I found that the chopsticks seemed to be broken.
I thought the chopsticks were really broken. Take them out quickly.
It turns out that chopsticks are not broken.
My mother laughed at me.
I was not convinced at all and asked, "Why?" Although I was not convinced, I didn't show it.
Mother said, "It is because of the refraction of light that we feel that chopsticks seem to be broken.
In fact, chopsticks are not broken at all, but it is difficult for us to tell them apart.
You'll find out later.
That's what I'm talking about. Check the information! "Speaking of which, I found some information, which is like this: this is caused by the refraction of light. When light is injected from one medium (air) into another medium (water), the incident angle is greater than the refraction angle, and chopsticks look thicker and more inclined. Looking down from the air, they are divided into two parts just like chopsticks are broken. But it will not refract when placed vertically in the air. At this time, the incident angle is 0 degrees.
I thought it was wonderful.
It turns out that light is refracted from air to water, and chopsticks look thicker.
From the air, it seems that the chopsticks are broken.
This water experiment made me understand a lot, but I looked at things from a different angle.
I thought: What if you stir chopsticks with water and then put them back? Have a try.
Ah! Great! Hee hee ~ ~ nothing, just the same.
That's weird. Chopsticks should be shaking, right? I replaced it with a bigger cup.
Stir it, ah! Chopsticks really seem to be shaking! I see. If there is more space, chopsticks will shake.
This experiment is really fun! And I also know a lot of scientific knowledge.
I want to do the experiment of water refraction, filtration and precipitation. I did an experiment today. I put chopsticks in water.
I found that the chopsticks seemed to be broken.
I thought the chopsticks were really broken. Take them out quickly.
It turns out that chopsticks are not broken.
My mother laughed at me.
I was not convinced at all and asked, "Why?" Although I was not convinced, I didn't show it.
Mother said, "It is because of the refraction of light that we feel that chopsticks seem to be broken.
In fact, chopsticks are not broken at all, but it is difficult for us to tell them apart.
You'll find out later.
That's what I'm talking about. Check the information! "Speaking of which, I found some information, which is like this: this is caused by the refraction of light. When light is injected from one medium (air) into another medium (water), the incident angle is greater than the refraction angle, and chopsticks look thicker and more inclined. Looking down from the air, they are divided into two parts just like chopsticks are broken. But it will not refract when placed vertically in the air. At this time, the incident angle is 0 degrees.
I thought it was wonderful.
It turns out that light is refracted from air to water, and chopsticks look thicker.
From the air, it seems that the chopsticks are broken.
This water experiment made me understand a lot, but I looked at things from a different angle.
I thought: What if you stir chopsticks with water and then put them back? Have a try.
Ah! Great! Hee hee ~ ~ nothing, just the same.
That's weird. Chopsticks should be shaking, right? I replaced it with a bigger cup.
Stir it, ah! Chopsticks really seem to be shaking! I see. If there is more space, chopsticks will shake.
This experiment is really fun! And I also know a lot of scientific knowledge.
...
Hello, everyone, I am a distributor of xx Company.
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So how big is it? It's smaller than an ordinary kettle.
Although small, it can filter up to 5000 liters of colorless, odorless and odorless harmful substances, as well as oxygen and minerals, which are sweet and healthy.
What are the functions and characteristics of such a good water purifier? That's too much. Let's start with the water purification system.
The water purifier has a quadruple water purification system. The first one is the pleated pre-filter screen, which can filter out the pollution particles with the size of 1 micron.
The second layer is a pre-purification filter layer, which can filter smaller pollutant particles, such as sediment and dirt.
The third is the high-density activated carbon filter screen, which can filter out 140 kinds of pollutants and particles as small as 0.2 micron, improve the taste, smell and clarity of water, and retain minerals beneficial to human body.
The last one is ultraviolet lamp tube, which can kill all kinds of bacteria and viruses in water, and the killing rate is as high as 99.99%.
Such a good water purifier must pass many certifications.
By the end of 20 1 1, this product has obtained more than 100 patents, NSF international certification and gold medal of American Water Quality Association.
After listening to my introduction, do you know about xx water purifier? For the health of you and your family, action is better than action. Come and buy it!
Clean glass composition 500 words Clean glass quickly Now technology is more and more developed, and there are high-rise buildings, buildings, factories and cars everywhere.
There is less and less greening, but there are more and more people with lung cancer, all because of the exhaust gas from factories, range hoods and cars, which makes them get lung cancer.
In order to reduce the number of people suffering from lung cancer, I want to invent a kind of glass called "purified glass".
There is a special purification net in the "purified glass", and the material is made according to the function of trees to convert carbon dioxide into oxygen.
There are many dense holes on its surface, which are invisible to the naked eye.
When the exhaust gas reaches the purification net through the small holes, the purification net will filter the exhaust gas and turn it into fresh air.
Moreover, every time fresh air is exhausted, the waste gas absorbed is doubled.
Where will the exhaust gas flow? It turns out that there is a net covered with small water droplets behind the purification net.
When the sun shines, the waste gas will stick to the water droplets, which will evaporate in the air.
This is the glass I want to invent-"purified glass".
Composition: Literature can only become a classic after historical filtration. How to conceive? 1. Forest purifies air.
With the rapid development of industrial and mining enterprises and the sharp increase of fossil fuels for human life, a certain amount of harmful gases are mixed in the polluted air, which poses a threat to human beings, among which sulfur dioxide is a widely distributed harmful gas.
All living things have the ability to absorb sulfur dioxide, but the speed and ability of absorption are different.
Plants have a huge leaf area and absorb more sulfur dioxide than other species.
According to the measurement, the sulfur dioxide in forest air is less than that in open space 15-50%.
If it is in high temperature and high humidity summer, with the vigorous physiological activity function of trees, the speed of forest absorbing sulfur dioxide will accelerate.
When the relative humidity is above 85%, the speed of sulfur dioxide absorption by forests is 5- 10 times that when the relative humidity is 15%.
Second, forests have natural epidemic prevention functions.
Trees can secrete fungicides with strong lethality, kill germs and microorganisms in the air, and have a certain health care effect on human body.
Some people have measured the content of bacteria in the air in different environments: 65,438+0,000 in parks where people walk, 30,000-40,000 in urban streets, and only 55 in forest areas.
In addition, the bactericidal dose secreted by trees is also considerable.
For example, a hectare of cypress forest can secrete 30 kilograms of bactericide every day, which can kill diphtheria, tuberculosis, dysentery and other germs.
Third, the forest is a natural oxygen factory.
Oxygen is the basic condition for human life. The human body is breathing oxygen and expelling carbon dioxide all the time.
It is common sense that healthy people will not die if they don't eat or drink for three or two days, but will die if they lack oxygen for a few minutes.
According to the literature, a person needs to inhale 0.8 kg of oxygen and expel 0.9 kg of carbon dioxide every day to survive.
Forests absorb a lot of carbon dioxide and release oxygen during their growth.
According to research, for every 44 grams of carbon dioxide absorbed by trees, 32 grams of oxygen can be released; Leaves produce one gram of glucose through photosynthesis, which can consume all the carbon dioxide contained in 2500 liters of air.
According to theoretical calculation, every cubic meter of wood grown in the forest can absorb about 850 kilograms of carbon dioxide in the atmosphere.
At the peak of tree growth, one hectare of broad-leaved forest can absorb one ton of carbon dioxide every day and produce 750 kilograms of oxygen.
The data show that 10 square meter of forest or 25 square meters of grassland can absorb all the carbon dioxide that a person breathes and supply the required oxygen.
It is true that trees also absorb oxygen and expel carbon dioxide at night, but the amount of carbon dioxide inhaled during the day is very large, almost 20 times that at night, compared with the side effects at night.
On a global scale, forest green space can treat nearly 1000 billion tons of carbon dioxide for human beings every year, provide 60% clean oxygen for the air, and absorb suspended particles in the atmosphere, which has great ability to improve air quality; And can reduce greenhouse gases and thermal effects.
Fourth, the forest is a natural muffler.
With the development of transportation, especially in cities and towns, noise is more and more harmful to human beings.
According to the research results, the noise is below 50 decibels, which has no effect on people; When the noise reaches 70 decibels, it will cause obvious harm to people; If the noise exceeds 90 decibels, people can't work for a long time.
As a natural muffler, forest has a good anti-noise effect.
Experiments show that parks or woodlands can reduce noise by 5-40 decibels, which is 5-25 decibels more than the natural attenuation effect of open spaces at the same distance from the sound source. The car tweeter can reduce the noise 10-20 decibels when it passes through the multi-level forest belt composed of lawns, shrubs and trees with a width of 40 meters, which is 4-8 decibels more than the natural attenuation effect in the open area.
Planting trees on urban streets can also reduce noise by 7- 10 decibels.
In order to have a good effect of noise reduction, there must be at least one forest belt with a width of 6 meters (crown) and a height of 15 meters in the city. The forest belt should not be too far away from the sound source, and it is generally between 6- 15 meters.
5. Forests can regulate climate.
The dense forest canopy can absorb, scatter and reflect part of solar radiation energy in summer, thus reducing ground warming.
Although most forest leaves wither in winter, dense branches can still reduce the wind speed blowing across the ground, reduce air flow, and play a role in heat preservation and moisture preservation.
According to the measurement, the temperature of forest in summer is 2-4℃ lower than that of urban open space, and the relative humidity is high 15-25%, which is lower than that of asphalt concrete cement pavement 10-20℃.
Because the roots of trees go deep into the ground, they constantly absorb the water in the deep soil for trees to transpiration, which makes the forest form fog normally and increases precipitation.
Through analysis and comparison, the annual precipitation in forest areas is more than that in non-forest areas 10-30%.
According to foreign reports, in order to protect the natural environment, the green coverage rate of forests should account for more than 25% of the total area.
Six, the forest changes the low-level airflow, which has the functions of preventing sandstorms and reducing disasters, conserving water sources and conserving water and soil.
Due to the blocking and friction consumption of forest trunks, branches and leaves, the wind speed entering the forest area will be obviously weakened.
According to the data, dense canopy can reduce the wind speed by as much as 50% in summer.
The wind is 200 meters before entering the forest, and the wind speed changes little; After crossing the forest, it takes about 500- 1000 meters to restore the speed before crossing the forest.
Humans use this function of forests to plant trees and control desertification.
The rotten layer of forest surface litter is increasing, forming a thick humus layer, just like a huge sponge that absorbs rainwater, which has powerful functions of absorbing water, delaying runoff and weakening flood peak.
In addition, the canopy can intercept rainwater, reduce the impact of rainwater on the ground, and maintain soil and water.
According to the calculation, the canopy can block 10-20% of the precipitation, most of which evaporates into the atmosphere, and the rest falls to the ground or seeps into the soil along the trunk to become groundwater, so a forest is a reservoir.
The roots of forest vegetation can firmly fix the soil, prevent the land from being washed by rain, prevent soil erosion and prevent land desertification.
Seven, the forest has the function of dust removal and sewage filtration.
Smoke, dust and waste gas emitted by industrial development seriously pollute the air and threaten human health.
The folds and fluff on the leaves of tall trees, as well as the viscous oil and juice secreted by stomata, can intercept a lot of dust and have obvious blocking, filtering and adsorption effects.
According to the data, spruce can absorb 8 8. 14 grams of dust per square meter every day, 9.86 grams of pine forest and 3.39 grams of elm forest.
Generally speaking, the air dust concentration in forest areas is lower than that in non-forest areas 10-25%.
In addition, the forest has a strong ability to purify sewage. According to foreign research, sewage passes through 40 meters of woodland. ...
Now science and technology are more and more developed, and there are high-rise buildings, buildings, factories and cars everywhere.
There is less and less greening, but there are more and more people with lung cancer, all because of the exhaust gas from factories, range hoods and cars, which makes them get lung cancer.
In order to reduce the number of people suffering from lung cancer, I want to invent a kind of glass called "purified glass".
There is a special purification net in the "purified glass", and the material is made according to the function of trees to convert carbon dioxide into oxygen.
There are many dense holes on its surface, which are invisible to the naked eye.
When the exhaust gas reaches the purification net through the small holes, the purification net will filter the exhaust gas and turn it into fresh air.
Moreover, every time fresh air is exhausted, the waste gas absorbed is doubled.
Where will the exhaust gas flow? It turns out that there is a net covered with small water droplets behind the purification net.
When the sun shines, the waste gas will stick to the water droplets, which will evaporate in the air.
This is the glass I want to invent-"purified glass".
...
How to filter out illegal keywords in an article? Like asking questions? If it is, it is not within the scope of our legal discussion, but we like to put some sensitive and frequently used words into the program on the system and put them into the "blacklist". Once they appear, the program will be filtered and blocked.
But if you mean articles in life, it is a legal issue, but it is not easy to generalize.
Because illegal keywords are too numerous to mention.
It can even be some impassioned, elegant and civilized words, but it may still be illegal in essence.
How to prevent it? In my opinion, we can only look at the legal awareness and legal level of the writers, revisers and finalizers.
Due to lax control, many novels, movies and TV shows often see illegal language and plots, which can be summarized by an idiom: Everywhere.
Now science and technology are more and more developed, and there are high-rise buildings, buildings, factories and cars everywhere.
There is less and less greening, but there are more and more people with lung cancer, all because of the exhaust gas from factories, range hoods and cars, which makes them get lung cancer.
In order to reduce the number of people suffering from lung cancer, I want to invent a kind of glass called "purified glass".
There is a special purification net in the "purified glass", and the material is made according to the function of trees to convert carbon dioxide into oxygen.
There are many dense holes on its surface, which are invisible to the naked eye.
When the exhaust gas reaches the purification net through the small holes, the purification net will filter the exhaust gas and turn it into fresh air.
Moreover, every time fresh air is exhausted, the waste gas absorbed is doubled.
Where will the exhaust gas flow? It turns out that there is a net covered with small water droplets behind the purification net.
When the sun shines, the waste gas will stick to the water droplets, which will evaporate in the air.
This is the glass I want to invent-"purified glass".
Please indicate the source for reprinting. Words and deeds need filtering.