hothouse earth" The greenhouse planet " was a concept that was often mentioned by people with the rapid development of the world's industry. PM 2.5, smog, the oxygen layer, sunspots, and the melting of Arctic glaciers were all related to the greenhouse planet. If you want to understand the basic situation of Earth in detail, you can read the book " greenhouse Earth ", which details the effect of the word " greenhouse " on Earth.
From a scientific point of view, the greenhouse effect of the Earth was similar to the greenhouse principle of growing crops. The short-wave radiation of the sun penetrated the earth's atmosphere and shot into the ground. After the ground warmed up, it released long-wave radiation. These long-wave radiation were absorbed by greenhouse gases such as water vapor and carbon dioxide in the atmosphere, thus warming the earth's climate. For example, without the atmospheric greenhouse effect, the average surface temperature would drop to-23 ° C, while the actual average surface temperature was 15 ° C. The greenhouse effect increased the average surface temperature by 38 ° C. Moreover, the rate of global warming caused by human activities far exceeded the natural climate fluctuations of other periods of the Earth since the Caino era. According to the current situation, the Earth would reach a " hot " greenhouse state that had never been seen in 50 million years in 2300.
In addition, greenhouse gases also affected the Earth's atmosphere, making the stratosphere thinner and thinner. The universe sucked away dozens of tons of Earth's atmosphere every year. If the Earth lost its atmosphere, all living things would go extinct within three minutes.
Reaction Condition of Aspirin and Ferric TriCl3Aspirin will react with FeCl3 under acidic conditions. The ester bond in the molecules will be heated and then the formed Salicolic acid can react with FeCl3 solution under neutral or weakly acidic conditions (with a pH4 - 6).
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The focal length of the surveillance cameraIn an optical system, the focal length of the surveillance camera was the distance from the optical center point of the lens to the camera's CCD-based/CMOS-based sensor. It can also be understood as the distance from the center of the lens to the focal point of the light when parallel light is incident. The size of the focal length determined the image size, field of view, and depth of field of the surveillance image. Generally speaking, the larger the focal length, the farther the view, and the smaller the field of view. The smaller the focal length, the closer the view, and the larger the field of view. The focal length of mainstream surveillance cameras was generally 2.8mm, 3.6mm/4mm, 6mm, 8mm, 12mm, 16mm, etc. Some even had a zooming function. Cameras with different focal lengths are suitable for different monitoring ranges. For example, for situations where the monitoring range is small and the viewing angle is large, such as a family living room, small shops, etc., you can choose a surveillance camera with a smaller focal length.(For example, a 3.6mm or 4mm focal length camera can have a viewing angle of 75°-90 °, an effective monitoring distance of more than 5 meters, and can cover 40 - 80 degrees of space); for a larger monitoring range (such as a space of 10m * 10m), you need to choose a surveillance camera with a larger focal length.
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The complete collection of novels related to the dark day is free to watch.I recommend 'The Unparalleled Journey.' The author's thoughts confuse the heavenly secrets. This was an Eastern fantasy novel. The main character was extremely cold and was a Seeker." I'm the only one who kills people in this world. No one in this world will kill me." The story unfolded in endless time and space, full of secrets. No female lead, unique setting, decisive killing, dark style. It was super godly in the early stages, a little weak in the middle stages, and a little lousy in the later stages, but overall, it was very creative, like a work of a great god. The reviews on the book list were not bad, and the author's other books could also be read.
" Old Days Chapters " was not bad either. It was a fantasy novel written by Xu Ming. The main character was a little special, facing a strange game. No female lead, dark style, infinite style, and the theme of Cthulhu was very novel. The first world was written very well. The plot was deep, the main character was decisive in killing, and he had the potential to become an immortal herb.
" I Live Forever in the World of Liaozhai ", a Xianxia novel written by Watermelon Awesome. The main character Huang Liang traveled through Liao Zhai and became a gatekeeper. He was lucky enough to get the position of longevity. The story was very interesting.
'Doomsday Repairman' was a science fiction novel written by Twinkle Ten-Thousand-Year. Although she was a eunuch, she was still very stunning when she was in university.
Dark Blood Age, a sci-fi apocalyptic masterpiece that was popular all over the world. The story of the end of the world after the disappearance of the sun was very torturous, but the plot was extremely exciting. From the end of the world to the universe, it was a classic. " Doomsday Cockroach " was also very good. It was a story of a doomsday struggle to survive, and the plot was very touching.
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A novel with a particularly powerful protagonistI recommend " Madman of the Nine Heavens ", a fantasy novel written by a calm and composed person. The main character was a genius, the young clan leader. He was a madman who cultivated, fought, slapped faces, and took in maids. If you were tired of watching the good-for-nothing flow, you could read this book. It was very exciting from the beginning to the end.
" Master of Fighters " was not bad either. It was a fantasy novel written outside the galaxy. After the main character transmigrated, he had the Gaia system in his hands. He relied on various methods to generate enhancement points to become an expert. He could crush firearms and defeat non-humans. His martial artist level was set clearly.
The Reborn Great Author was an urban novel written by someone else's kitten. The protagonist was reborn in another world. There were many search engines in his brain, and he copied books to create all kinds of classic works. Although the ending was a bit messy in the later stages and the female lead was a bit of a failure, she was the founder of the literary genre and was the founder of plagiarism novels. Her pace was not bad and it was worth reading.
The Journey of Immortal Cultivation was created by Fenghua Lonely. The main character changed from a demon to a god. He acted in all directions. There was no female protagonist. He was cold, ruthless, and decisive. He liked this kind of thing.
"Me!" Shocked the World was an urban novel written by Yu Qing. The protagonist's rebirth in 2012 had a shocking system. The style of writing was not brainless. The protagonist's personality was loving. He was reborn to protect his sister.
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What is the state of a woman in her forties?A 40-year-old woman was in many states.
From a physiological point of view, in women between the ages of 35 and 45, the secretion of estrogens began to gradually decrease, but the level of hormones was relatively stable. During this period, women's career and family were relatively stable, and their stress was reduced. In addition, they had a clearer understanding of their own needs. Some women were more likely to obtain physiological satisfaction. However, different women's physiological needs were different, which was related to many factors such as physical condition, living environment, and husband and wife relationship. The level of physiological needs was often closely related to psychological state and quality of life. At the same time, the 40-year-old woman was about to enter the climacteric stage and her body began to show some changes, including irregular menstruation.(such as irregular menstruation, long menstrual period, increased or decreased menstrual volume), vasodilatation (It is easy to cause hot flashes, and the skin of the face, neck, and chest will be red for a short time, accompanied by symptoms such as heat and sweating), Autonic nervous disorder (such as insomnia, palpitation, dizziness, ringing in the ears, etc.), mental and nervous symptoms (such as being agitated, easily angered, anxious or depressed, unable to control themselves, etc.); There are also hormonal changes in the physiological aspect (Ovary function begins to decline and hormone secretion decreases), changes in the genitourinary system (the thinning of the vaginal-like cells, weakening of resistance, easy infection, urological system contraction, frequent and urgent urine, and symptoms of urine insolence), edema (after the lack of oestrogens, bone calcium escapes, blood calcium and urine calcium increases, and a large amount of calcium is lost), changes in the cardiovascular system (increase in the risk of cardiovascular diseases), etc.
From the perspective of psychology and life, some women might live very calmly, while others might feel anxious when facing the burden of middle-age. For example, in terms of career, some women might encounter bottlenecks; in terms of family, 40-year-old women's understanding and demands for intimate relationships were more mature. Some people believed that couples should communicate more, understand each other's needs, and live a harmonious life. In terms of life attitude, some women in this age group could realize that half of their lives had passed, and they should not care too much about their appearance. They should live for themselves and put their attention back on themselves. Some could enjoy life in a healthy state, not troubled by traditional ideas, nor deliberately cater to the expectations of others. They listened to the voice of their bodies and enjoyed the present.
In terms of appearance, at the age of 40, whether it was dressing or temperament, he needed to make some changes to find the most suitable way to show his appearance. Postures are more important than body shape changes. To avoid problems such as hunchbacks, rich bags, slippery shoulders, and thick backs, you need to develop good daily habits, such as correcting unhealthy sitting postures, moving your limbs frequently, stretching, and exercising to shape your body.(For example, doing cardio, yoga, and calisthenics). In terms of single item selection, you can choose a single item that can be used to maximize your body shape, showing an advantageous body proportion and a harmonious and stable body line. Women who know how to dress also have a higher taste when choosing accessories.
"A Woman in Her Forties" is equally exciting. Everyone is welcome to click and read it!
What is the effect of Haikang's 200W resolution?Haikang's 2-million-pel device had many effects:
- In terms of video conference, for example, the Hikvision ds-u102d video conference camera, with 2 million pixels and a 1920x1080 resolution high-definition lens, could provide excellent image quality. Without zooming, the field of view could reach 85 degrees, which could adapt to a medium-sized conference scene of 20 people.
- In terms of surveillance, for example, in some equipment used in residential areas, shopping malls, schools, and other entrances and exits, the 2-million-pel high-definition camera had a maximum resolution of 1920*1200 and a frame rate of up to 25fps. It also used 1/2.7"progressively scanned mos, which had good imaging results. It had a 0.002Lux low-illumination monitoring effect, and could be seen more clearly at night.
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