Knowledge of mine pool
Publish: 2021-04-14 05:58:55
1.
Mine pool refers to:
as the computing level of the whole bitcoin network continues to rise exponentially, a single device or a small amount of computing power can not get the block reward provided by the bitcoin network on the bitcoin network
after the computing power of the whole network has been improved to a certain extent, the low probability of getting rewards has prompted some geeks on "bitcoin talk" to develop a method that can combine a small amount of computing power and operate jointly, and the website established in this way is called "mine pool"
extended data:
the existence of the mine pool reces the difficulty of bitcoin and other virtual digital currency mining, reces the mining threshold, and truly realizes the bitcoin mining concept that everyone can participate in
but its disadvantages are also very obvious, because computing power is connected to the mine pool. As a mine pool, it will have huge computing power resources. In the bitcoin world, computing power represents the bookkeeping right, and computing power is everything. If the computing power of a single mine pool reaches more than 50%, it will be easy to launch 51% attacks against virtual digital currencies such as bitcoin, The consequences are very terrible:
the mine pool can make the mine pool with 49% of the remaining computing power have no harvest, instantly quit the competition and go bankrupt. The mine pool's computing power exceeds 50%. If 51% attack is launched, it will easily occupy all the effective computing power of the whole network
2. Unknown_Error
3. Most of the rabbits slap the ground with their hind legs, which is a way for them to express their feelings to the female rabbits. 2; Four not like & quot; The real name is elk, which is a rare animal in China. 4. Why does ice cream get angry
the reason why the ice cream is bubbling is that there are many invisible water vapor in the outside air. When the ice cream is very cold, it liquefies into droplets and surrounds the ice cream. It seems that the ice cream is bubbling. 5. Why is sunflower always facing the sun
sunflower stems contain a wonderful auxin. This auxin is very photophobic. When exposed to light, it will go to the backlight side. At the same time, it also stimulates the rapid proliferation of cells on the backlight side. Therefore, the backlight side grows faster than the phototropic side, resulting in phototropic bending of sunflower. 6. Why do cicadas molt
the shell (exoskeleton) of the cicada is hard and cannot expand with the growth of the cicada. When the cicada grows to a certain stage, the exoskeleton of the cicada limits the growth of the cicada, and the cicada takes off the original exoskeleton, which is the cicada slough. 7. How do bees make honey
bees first spit the sweet juice from the flowers into an empty hive. At night, they suck the sweet juice into their honey stomach to make it, then spit it out, and then swallow it in. In this way, they have to do 100-240 times to make sweet honey. 8. Why do stars twinkle
we can see stars twinkle, which is not e to the change of the luminosity of the stars themselves, but e to the occlusion of the atmosphere. The atmosphere is separated between us and stars. When starlight passes through the atmosphere, it will be affected by the density and thickness of the atmosphere. The atmosphere is not absolutely transparent, its transparency will change according to the density. So when we look at the stars from the ground, we can see that the stars seem to be flashing
9. Why do people yawn
when we feel tired, our bodies proce a lot of carbon dioxide. When there is too much carbon dioxide, more oxygen must be added to balance the body's needs. Because these resial carbon dioxide will affect our body's functional activities, then the body will send out a protective response, and yawn. Yawning is a kind of deep breathing action, it will let us inhale more oxygen and exhaust more carbon dioxide than usual, and also achieve the effect of eliminating fatigue
10. Why can snakes walk without feet
snakes have many scales, which is the outermost layer of armor on them. Scales are not only used to protect the body, they can also be their feet. When a snake crawls forward, its body will be S-shaped. Each scale on the outside of the S-shape will be tilted up to help the snake grasp the uneven road when it moves forward. These scales cooperate with the snake's muscles and can push the body forward, so the snake can walk without feet
11. Why do people turn white when they are old
there is a substance called "melanin" in our hair. The more melanin there is, the darker the color of our hair will be. If melanin is less, the hair will turn yellow or white. In old age, all kinds of functions of the body will graally decline, and the formation of pigment will be less and less, so the hair will graally turn white! 12. Why do fireflies glow
fireflies emit light because there are luminaries at the end of their abdomen. The luminaries are filled with phosphorous containing luminescent substances and luminescent enzymes, so that fireflies can emit flashing light. In addition to lighting, the purpose of firefly luminescence is courtship, warning, trapping and other purposes. It is also a communication tool for them. Different kinds of fireflies emit different light in different ways, frequencies and colors, so that they can convey different messages
13. Why do you coo when you are hungry
when you are hungry, you will grunt. This is because the food you ate before is almost digested. Although the stomach is empty, the gastric juice in the stomach will continue to secrete. At this time, the contraction of the stomach will graally expand, and the liquid and gas inside will stir up, causing a gurgling sound. Next time, don't be embarrassed by your tummy! Because this is a normal physiological action
the reason why the ice cream is bubbling is that there are many invisible water vapor in the outside air. When the ice cream is very cold, it liquefies into droplets and surrounds the ice cream. It seems that the ice cream is bubbling. 5. Why is sunflower always facing the sun
sunflower stems contain a wonderful auxin. This auxin is very photophobic. When exposed to light, it will go to the backlight side. At the same time, it also stimulates the rapid proliferation of cells on the backlight side. Therefore, the backlight side grows faster than the phototropic side, resulting in phototropic bending of sunflower. 6. Why do cicadas molt
the shell (exoskeleton) of the cicada is hard and cannot expand with the growth of the cicada. When the cicada grows to a certain stage, the exoskeleton of the cicada limits the growth of the cicada, and the cicada takes off the original exoskeleton, which is the cicada slough. 7. How do bees make honey
bees first spit the sweet juice from the flowers into an empty hive. At night, they suck the sweet juice into their honey stomach to make it, then spit it out, and then swallow it in. In this way, they have to do 100-240 times to make sweet honey. 8. Why do stars twinkle
we can see stars twinkle, which is not e to the change of the luminosity of the stars themselves, but e to the occlusion of the atmosphere. The atmosphere is separated between us and stars. When starlight passes through the atmosphere, it will be affected by the density and thickness of the atmosphere. The atmosphere is not absolutely transparent, its transparency will change according to the density. So when we look at the stars from the ground, we can see that the stars seem to be flashing
9. Why do people yawn
when we feel tired, our bodies proce a lot of carbon dioxide. When there is too much carbon dioxide, more oxygen must be added to balance the body's needs. Because these resial carbon dioxide will affect our body's functional activities, then the body will send out a protective response, and yawn. Yawning is a kind of deep breathing action, it will let us inhale more oxygen and exhaust more carbon dioxide than usual, and also achieve the effect of eliminating fatigue
10. Why can snakes walk without feet
snakes have many scales, which is the outermost layer of armor on them. Scales are not only used to protect the body, they can also be their feet. When a snake crawls forward, its body will be S-shaped. Each scale on the outside of the S-shape will be tilted up to help the snake grasp the uneven road when it moves forward. These scales cooperate with the snake's muscles and can push the body forward, so the snake can walk without feet
11. Why do people turn white when they are old
there is a substance called "melanin" in our hair. The more melanin there is, the darker the color of our hair will be. If melanin is less, the hair will turn yellow or white. In old age, all kinds of functions of the body will graally decline, and the formation of pigment will be less and less, so the hair will graally turn white! 12. Why do fireflies glow
fireflies emit light because there are luminaries at the end of their abdomen. The luminaries are filled with phosphorous containing luminescent substances and luminescent enzymes, so that fireflies can emit flashing light. In addition to lighting, the purpose of firefly luminescence is courtship, warning, trapping and other purposes. It is also a communication tool for them. Different kinds of fireflies emit different light in different ways, frequencies and colors, so that they can convey different messages
13. Why do you coo when you are hungry
when you are hungry, you will grunt. This is because the food you ate before is almost digested. Although the stomach is empty, the gastric juice in the stomach will continue to secrete. At this time, the contraction of the stomach will graally expand, and the liquid and gas inside will stir up, causing a gurgling sound. Next time, don't be embarrassed by your tummy! Because this is a normal physiological action
4. Water (chemical formula: H & # 8322; O) It is an inorganic substance composed of hydrogen and oxygen. It is a colorless and odorless transparent liquid under normal temperature and pressure. Water, including natural water (rivers, lakes, atmospheric water, seawater, groundwater, etc.) and artificial water (water is obtained by combining hydrogen and oxygen atoms through chemical reaction). Water is one of the most common substances on the earth. It is an important resource for all life including human beings, and also the most important part of organisms. Water plays an important role in the evolution of life. Human beings have known about water for a long time. In the ancient simple material view of the East and the west, water was regarded as a basic element, and water was one of the five elements in ancient China; In the ancient western theory of four elements, there was also water.
5. Little scientific knowledge
1. Rabbits use the action of slapping the ground with their legs to transmit information. Most of the rabbits slapping the ground with their hind legs are male rabbits, which is a way for them to express their emotions to female rabbits
2. The largest monkey in the world is baboon, and the smallest monkey is woku
3. The real name of "Si BU Xiang" is elk, which is a rare animal in China
4. Why does ice cream get angry
the reason why the ice cream is bubbling is that there are many invisible water vapor in the outside air. When the ice cream is very cold, it liquefies into droplets and surrounds the ice cream. It seems that the ice cream is bubbling
5. Why do sunflowers always face the sun
sunflower stems contain a wonderful auxin. This auxin is very photophobic. When exposed to light, it will go to the backlight side. At the same time, it also stimulates the rapid proliferation of cells on the backlight side. Therefore, the backlight side grows faster than the phototropic side, resulting in phototropic bending of sunflower.
1. Rabbits use the action of slapping the ground with their legs to transmit information. Most of the rabbits slapping the ground with their hind legs are male rabbits, which is a way for them to express their emotions to female rabbits
2. The largest monkey in the world is baboon, and the smallest monkey is woku
3. The real name of "Si BU Xiang" is elk, which is a rare animal in China
4. Why does ice cream get angry
the reason why the ice cream is bubbling is that there are many invisible water vapor in the outside air. When the ice cream is very cold, it liquefies into droplets and surrounds the ice cream. It seems that the ice cream is bubbling
5. Why do sunflowers always face the sun
sunflower stems contain a wonderful auxin. This auxin is very photophobic. When exposed to light, it will go to the backlight side. At the same time, it also stimulates the rapid proliferation of cells on the backlight side. Therefore, the backlight side grows faster than the phototropic side, resulting in phototropic bending of sunflower.
6. What is the content of popular science knowledge
popular science knowledge is a kind of knowledge words that can explain various scientific phenomena and theories in a simple language. For the purpose of popularizing scientific knowledge
popular science knowledge covers all aspects of science, including physics, chemistry, biology and daily life. Because of its wide range, it has laid a foundation for the significance and influence of popular science knowledge. The significance of popular science knowledge inevitably requires that our popular science ecation must keep pace with the times and go with the quality ecation we advocate. Synchronous development. Make popular science knowledge and popular science ecation come into people's life in a real sense. The significance and influence of popular science knowledge will be far-reaching and long-term< Here are two examples:
1. Why do stars twinkle
we can see stars twinkle, which is not e to the change of the luminosity of the stars themselves, but e to the occlusion of the atmosphere
the atmosphere is between us and the stars. When the starlight passes through the atmosphere, it will be affected by the density and thickness of the atmosphere. The atmosphere is not absolutely transparent, its transparency will change according to the density. So when we look at the stars from the ground, we can see that the stars seem to be flashing
2. Why do people yawn
when we feel tired, our bodies proce a lot of carbon dioxide. When there is too much carbon dioxide, more oxygen must be added to balance the body's needs. Because these resial carbon dioxide will affect our body's functional activities, then the body will send out a protective response, and yawn
yawning is a kind of deep breathing action, which can make us inhale more oxygen and exhaust more carbon dioxide than usual, and also eliminate fatigue< br />……
popular science knowledge is a kind of knowledge words that can explain various scientific phenomena and theories in a simple language. For the purpose of popularizing scientific knowledge
popular science knowledge covers all aspects of science, including physics, chemistry, biology and daily life. Because of its wide range, it has laid a foundation for the significance and influence of popular science knowledge. The significance of popular science knowledge inevitably requires that our popular science ecation must keep pace with the times and go with the quality ecation we advocate. Synchronous development. Make popular science knowledge and popular science ecation come into people's life in a real sense. The significance and influence of popular science knowledge will be far-reaching and long-term< Here are two examples:
1. Why do stars twinkle
we can see stars twinkle, which is not e to the change of the luminosity of the stars themselves, but e to the occlusion of the atmosphere
the atmosphere is between us and the stars. When the starlight passes through the atmosphere, it will be affected by the density and thickness of the atmosphere. The atmosphere is not absolutely transparent, its transparency will change according to the density. So when we look at the stars from the ground, we can see that the stars seem to be flashing
2. Why do people yawn
when we feel tired, our bodies proce a lot of carbon dioxide. When there is too much carbon dioxide, more oxygen must be added to balance the body's needs. Because these resial carbon dioxide will affect our body's functional activities, then the body will send out a protective response, and yawn
yawning is a kind of deep breathing action, which can make us inhale more oxygen and exhaust more carbon dioxide than usual, and also eliminate fatigue< br />……
7. Why does milk have a layer of skin after being heated
the skin floating on the surface of milk is coagulated protein. Milk contains essential nutrients for growth and development of cattle, and protein is one of the most important nutrients
proteins solidify when heated. The reason why boiled eggs solidify is that the protein in the eggs solidifies. The protein in milk also solidifies when heated
why there is a sound of searching when the wind blows
the wind is actually a phenomenon proced by the air flow, and the gas itself does not proce sound. The sound of wind we hear is actually a vibration wave proced when the gas flows and acts on the object that blocks it, and the frequency of the vibration wave is just right and can be heard by people, which becomes what we call the sound of wind, If there is no object blocking him, there will be no wind
Why do water droplets splash when they drop into hot oil
because the mass of water is heavier than that of oil, and its boiling point is much lower than that of oil. When water boils rapidly at high temperature, there will be crackling explosion. Water vapor becomes kinetic energy and oil splashes up
why can't stainless steel rust< Stainless steel is not easy to rust. Just because it is not easy to rust, people call it stainless steel. Ordinary stainless steel is made by adding about 18% chromium into iron, that is to say, it is an alloy. In addition, there is stainless steel made by adding nickel into iron. Compared with iron, stainless steel is not easy to rust because when stainless steel is used to make thin plate, it is easy to rust, This kind of coating is a kind of oxide, in fact, it is also a kind of "rust". Therefore, it can also be said that stainless steel is a kind of metal easier to rust than iron, but its "rust" just acts as a protective film
the skin floating on the surface of milk is coagulated protein. Milk contains essential nutrients for growth and development of cattle, and protein is one of the most important nutrients
proteins solidify when heated. The reason why boiled eggs solidify is that the protein in the eggs solidifies. The protein in milk also solidifies when heated
why there is a sound of searching when the wind blows
the wind is actually a phenomenon proced by the air flow, and the gas itself does not proce sound. The sound of wind we hear is actually a vibration wave proced when the gas flows and acts on the object that blocks it, and the frequency of the vibration wave is just right and can be heard by people, which becomes what we call the sound of wind, If there is no object blocking him, there will be no wind
Why do water droplets splash when they drop into hot oil
because the mass of water is heavier than that of oil, and its boiling point is much lower than that of oil. When water boils rapidly at high temperature, there will be crackling explosion. Water vapor becomes kinetic energy and oil splashes up
why can't stainless steel rust< Stainless steel is not easy to rust. Just because it is not easy to rust, people call it stainless steel. Ordinary stainless steel is made by adding about 18% chromium into iron, that is to say, it is an alloy. In addition, there is stainless steel made by adding nickel into iron. Compared with iron, stainless steel is not easy to rust because when stainless steel is used to make thin plate, it is easy to rust, This kind of coating is a kind of oxide, in fact, it is also a kind of "rust". Therefore, it can also be said that stainless steel is a kind of metal easier to rust than iron, but its "rust" just acts as a protective film
8.
scientific knowledge is some common sense used in daily life
1. The thermos can keep warm
the bladder of the thermos is made of two layers of glass. After the air in the middle layer is pumped out, a vacuum is formed inside. Because vacuum is not easy to transfer heat, the water in it is not easy to cool. When we put the ice into the thermos, the heat outside the thermos is also not easy to get into the thermos, and the ice is not easy to melt
4. The main reason why the fruits are not sweet after more rain is sugar. With enough light, the leaves can proce a lot of sugar through sunlight, and the surplus is stored in the fruits. If in the process of fruit growth, cloudy days and more rain, plants can not get enough sunlight, leaves can not create more sugar, fruit is not sweet
5. Why can't we water the flowers at noon in summer?
in the early morning and evening of summer, the weather is cool, when we water the flowers, the difference between the soil temperature and the water temperature is not too big, and the flowers won't be hurt. At noon, the temperature in the soil is also very high. If you suddenly pour cold water on the flowers, some flowers will not stand the sudden change of temperature and may die soon. Therefore, the summer watering, must be in the early morning or evening
9. 1. Benzene, toluene, xylene and other volatile organic pollutants in furniture can lead to fetal congenital defects
2. Soap is the most environmentally friendly detergent< In 1941, Chinese physicist Wang Ganchang proposed an experimental scheme to verify the existence of neutrinos. Half a year later, American scientists carried out experiments based on this scheme and confirmed the existence of neutrinos
4. Putting the sanitary ball in the closet will proce a certain sublimation, and it will become smaller after a period of time
5. When using the air conditioner in summer, it is best to set the temperature at 26-28 ℃
6. Cooking fume in restaurants can cause pollution and harm health, so cooking fume purification devices should be installed
7. Eating iodized salt can meet the human body's iodine intake, and people usually use iodized salt. We need to keep iodized salt sealed because of the volatility of iodine
8. Geothermal energy, wind energy, solar energy and other energy which can avoid causing air pollution are called clean energy
9. Fragrant plastic book covers, pencils and other fragrant stationery are popular among primary and secondary school students. However, according to professionals, these stationery with pungent smell will threaten human health because they contain a lot of formaldehyde
10. Nuclear power plants must always adhere to the principle of quality first and safety first< Two thousand years ago, people thought that the earth was the center of the universe. Until the 17th century, Galileo observed with his own telescope that the earth revolved around the sun
12. High above the ground, there are few atmospheric molecules, so the light scattered by the air molecules is also less, so the sky becomes dim when it is high above the ground
13. Wild animals contain a large number of parasites, which can easily ince some parasitic diseases, such as cerebral cysticercosis, paragonimiasis, intestinal parasitic diseases, etc
14. The first person to fly in the history of China's manned space flight is Yang Liwei
15. It's better to soak vegetables in clean water for 10-20 minutes to remove most pesticide resies
16. On April 12, 1961, astronauts from the former Soviet Union took the "dongfang-1" spacecraft to travel in space for the first time< The surface temperature of the sun is about 6000 ℃< In 1964, China successfully bombed the first atomic bomb
19. The only scientist who won the Nobel Prize twice in history is Madame Curie
20. Medical alcohol is 75 degrees
21. The folk ghost fire is actually the result of phosphorus spontaneous combustion in the air
22. The cross section of common thermometer is round, while the cross section of thermometer is similar to a triangle. The main function of the thermometer in this shape is to amplify the liquid column for easy reading< When insects fly, their wings vibrate. Butterflies vibrate 5-6 times a second, and bees vibrate 300-400 times a second. When they all fly behind you, you can feel the bees fly behind you with your hearing
24. Gastric juice is the most acidic liquid in human body< The first satellite was launched by the former Soviet Union
26. When driving a car, the speed of 80 km / h is 25% less than that of 110 km / h
27. If a child makes mistakes in his homework, it is best to advise him not to use correction fluid
28. Automobile exhaust contains NO2, carbon monoxide, hydrocarbons and other harmful substances
29. Frost occurs when the temperature of an object or crop drops to 0; Below C, the water vapor in the air directly condenses into white ice crystals on the ground or crops< In 1954, the former Soviet Union built the first nuclear power plant in the world< The temperature of the core is above 5000 ℃< The Wright brothers invented the airplane
33. Nineteen Ancient Poems: a distant Altair, a Han woman in Jiaojiao river. Vega is in the constellation Lyra
34. Orion is the most representative constellation in the winter sky
35. The famous Chinese American physicist Ding Zhaozhong won the Nobel Prize in physics in 1976 for his discovery of a long-lived, heavy mass meson
36. The rated frequency standard of power system in China and most countries in the world is set at 50 Hz, and the rated frequency standard of power system in a few countries is set at 60 Hz< The comet is called "broom star" because it has a long tail like a broom
38. The color of the sun is white
39. Trees can absorb carbon dioxide and release oxygen through photosynthesis
40. All the colors on the color TV light screen are made of three primary colors: green, red and blue
41. China's hybrid rice is famous in the world, and Yuan Longping is known as "the father of hybrid rice" in the world
42. There are 88 constellations in the whole day.
2. Soap is the most environmentally friendly detergent< In 1941, Chinese physicist Wang Ganchang proposed an experimental scheme to verify the existence of neutrinos. Half a year later, American scientists carried out experiments based on this scheme and confirmed the existence of neutrinos
4. Putting the sanitary ball in the closet will proce a certain sublimation, and it will become smaller after a period of time
5. When using the air conditioner in summer, it is best to set the temperature at 26-28 ℃
6. Cooking fume in restaurants can cause pollution and harm health, so cooking fume purification devices should be installed
7. Eating iodized salt can meet the human body's iodine intake, and people usually use iodized salt. We need to keep iodized salt sealed because of the volatility of iodine
8. Geothermal energy, wind energy, solar energy and other energy which can avoid causing air pollution are called clean energy
9. Fragrant plastic book covers, pencils and other fragrant stationery are popular among primary and secondary school students. However, according to professionals, these stationery with pungent smell will threaten human health because they contain a lot of formaldehyde
10. Nuclear power plants must always adhere to the principle of quality first and safety first< Two thousand years ago, people thought that the earth was the center of the universe. Until the 17th century, Galileo observed with his own telescope that the earth revolved around the sun
12. High above the ground, there are few atmospheric molecules, so the light scattered by the air molecules is also less, so the sky becomes dim when it is high above the ground
13. Wild animals contain a large number of parasites, which can easily ince some parasitic diseases, such as cerebral cysticercosis, paragonimiasis, intestinal parasitic diseases, etc
14. The first person to fly in the history of China's manned space flight is Yang Liwei
15. It's better to soak vegetables in clean water for 10-20 minutes to remove most pesticide resies
16. On April 12, 1961, astronauts from the former Soviet Union took the "dongfang-1" spacecraft to travel in space for the first time< The surface temperature of the sun is about 6000 ℃< In 1964, China successfully bombed the first atomic bomb
19. The only scientist who won the Nobel Prize twice in history is Madame Curie
20. Medical alcohol is 75 degrees
21. The folk ghost fire is actually the result of phosphorus spontaneous combustion in the air
22. The cross section of common thermometer is round, while the cross section of thermometer is similar to a triangle. The main function of the thermometer in this shape is to amplify the liquid column for easy reading< When insects fly, their wings vibrate. Butterflies vibrate 5-6 times a second, and bees vibrate 300-400 times a second. When they all fly behind you, you can feel the bees fly behind you with your hearing
24. Gastric juice is the most acidic liquid in human body< The first satellite was launched by the former Soviet Union
26. When driving a car, the speed of 80 km / h is 25% less than that of 110 km / h
27. If a child makes mistakes in his homework, it is best to advise him not to use correction fluid
28. Automobile exhaust contains NO2, carbon monoxide, hydrocarbons and other harmful substances
29. Frost occurs when the temperature of an object or crop drops to 0; Below C, the water vapor in the air directly condenses into white ice crystals on the ground or crops< In 1954, the former Soviet Union built the first nuclear power plant in the world< The temperature of the core is above 5000 ℃< The Wright brothers invented the airplane
33. Nineteen Ancient Poems: a distant Altair, a Han woman in Jiaojiao river. Vega is in the constellation Lyra
34. Orion is the most representative constellation in the winter sky
35. The famous Chinese American physicist Ding Zhaozhong won the Nobel Prize in physics in 1976 for his discovery of a long-lived, heavy mass meson
36. The rated frequency standard of power system in China and most countries in the world is set at 50 Hz, and the rated frequency standard of power system in a few countries is set at 60 Hz< The comet is called "broom star" because it has a long tail like a broom
38. The color of the sun is white
39. Trees can absorb carbon dioxide and release oxygen through photosynthesis
40. All the colors on the color TV light screen are made of three primary colors: green, red and blue
41. China's hybrid rice is famous in the world, and Yuan Longping is known as "the father of hybrid rice" in the world
42. There are 88 constellations in the whole day.
10. How do birds sleep?
in the daytime, birds shuttle and whine in the branches and fly freely under the blue sky. At night, they have to rest, sleep and recover their physical strength just like us, but their sleeping posture is different
beautiful mallards and swans hunt and play in the water ring the day, and can't leave their favorite water surface when they rest at night. They bend their beautiful long necks, bury their heads in their wings, and then float on the water, dreaming and drifting with the current
cranes, storks, herons and other long legged birds always sleep on their own feet, and change their feet when they are tired, which is a model of combining work and rest
when partridges rest, they like to form a big circle in groups, and then they all face outward and end inward. In this way, no matter which direction the enemy comes from, they can find out and escape in time
thrush, lark and other birds usually bend their legs when they sleep, and their claws bend to firmly grasp the branches, so they don't have to worry about falling from the tree
and owl, a "night shift" Raptor, you can always see it in the daytime, with one eye open and one eye closed, standing on a thick branch, when it is actually sleeping. The owl's sleeping posture is not very unusual, it is in order to monitor the surrounding environment and guard against the enemy's attack<
can fish drown too?
fish have gills to breathe in the water, and swim bladder to float freely in the water. However, some people say that the fish living in the water will also drown. Is that true
this may sound ridiculous, but it's true. The swim bladder is the "life buoy" for fish when swimming. It can adjust the specific gravity of the fish through inflation and deflation. In this way, fish only need minimal muscle activity when swimming, and then they can keep a stable state in the water. However, when the fish sink to a certain depth (i.e. "critical depth"), the external pressure will make it unable to rece the volume of swim bladder. At this time, its buoyancy is less than its own gravity, so it involuntarily sinks to the bottom of the water, never floats again, and finally drowns because it can't breathe. Although fish can also float up by swinging their fins and tail, it's useless if they sink too deep
on the other hand, fish living in the deep sea can live freely in the deep water because their bones can bear great pressure. If we quickly get the fish living in the deep sea above the "critical depth", it will continue to "expand" until it floats to the surface because the internal pressure of its body can not reach a balance with the smaller external pressure. Sometimes, it even spits out its internal organs and "bursts" to death
= = = = = =
greedy children become stupid
greedy will rece the blood flow of the brain
if you eat too much at one time or eat constantly, a lot of blood in the human body, including the blood of the brain, will be mobilized to the gastrointestinal tract. Sufficient blood supply is the premise of development. If it is often in the ischemic state, its development will be affected
overeating can lead to "obese brain"
overeating, especially eating too much high nutrition food, will greatly exceed the consumption of heat, making the heat energy into fat accumulation in the body. If there is too much fat in brain tissue, it will cause "obese brain". Studies have confirmed that human intelligence is related to the number of sulci folds. The more obvious the sulci folds are, the higher the level of intelligence is. The obese brain makes the sulcus and gyrus close together, the wrinkles disappear, the cerebral cortex is smooth, and the development of neural network is poor, so the intelligence level will be reced
gluttony can inhibit the physiological function of brain intelligent area
the way of human brain activity is that excitation and inhibition ince each other, that is, when some parts of the brain are excited, some areas of its adjacent parts are in a state of inhibition, and the more excited, the deeper the inhibition of the surrounding parts, and vice versa. Therefore, if the autonomic nerve center in charge of gastrointestinal digestion is excited for a long time e to overeating, it will inevitably lead to the inhibition of adjacent brain intelligent areas such as language, thinking, memory and imagination. If these areas are often in a state of inhibition, their intelligence will get worse and worse
overeating will damage the brain e to constipation
most of children's snacks are high nutrition fine food, which is prone to constipation. During constipation, the metabolites accumulate in the digestive tract for a long time, and proce a large number of harmful substances after the action of intestinal bacteria, which are easy to be absorbed by the intestine, enter the blood circulation, stimulate the brain, cause chronic poisoning of brain nerve cells, and affect the normal development of the brain
gluttony can also promote premature brain aging
scientists have found in a study that a substance that can promote premature brain aging, fibroblast growth factor, will increase by tens of thousands of times after meals e to overeating, which is a substance that can promote arteriosclerosis. Therefore, in the long run, gluttony will make the brain aging prematurely
} Komatsu blog collection. Please note if you want to reprint}
in the daytime, birds shuttle and whine in the branches and fly freely under the blue sky. At night, they have to rest, sleep and recover their physical strength just like us, but their sleeping posture is different
beautiful mallards and swans hunt and play in the water ring the day, and can't leave their favorite water surface when they rest at night. They bend their beautiful long necks, bury their heads in their wings, and then float on the water, dreaming and drifting with the current
cranes, storks, herons and other long legged birds always sleep on their own feet, and change their feet when they are tired, which is a model of combining work and rest
when partridges rest, they like to form a big circle in groups, and then they all face outward and end inward. In this way, no matter which direction the enemy comes from, they can find out and escape in time
thrush, lark and other birds usually bend their legs when they sleep, and their claws bend to firmly grasp the branches, so they don't have to worry about falling from the tree
and owl, a "night shift" Raptor, you can always see it in the daytime, with one eye open and one eye closed, standing on a thick branch, when it is actually sleeping. The owl's sleeping posture is not very unusual, it is in order to monitor the surrounding environment and guard against the enemy's attack<
can fish drown too?
fish have gills to breathe in the water, and swim bladder to float freely in the water. However, some people say that the fish living in the water will also drown. Is that true
this may sound ridiculous, but it's true. The swim bladder is the "life buoy" for fish when swimming. It can adjust the specific gravity of the fish through inflation and deflation. In this way, fish only need minimal muscle activity when swimming, and then they can keep a stable state in the water. However, when the fish sink to a certain depth (i.e. "critical depth"), the external pressure will make it unable to rece the volume of swim bladder. At this time, its buoyancy is less than its own gravity, so it involuntarily sinks to the bottom of the water, never floats again, and finally drowns because it can't breathe. Although fish can also float up by swinging their fins and tail, it's useless if they sink too deep
on the other hand, fish living in the deep sea can live freely in the deep water because their bones can bear great pressure. If we quickly get the fish living in the deep sea above the "critical depth", it will continue to "expand" until it floats to the surface because the internal pressure of its body can not reach a balance with the smaller external pressure. Sometimes, it even spits out its internal organs and "bursts" to death
= = = = = =
greedy children become stupid
greedy will rece the blood flow of the brain
if you eat too much at one time or eat constantly, a lot of blood in the human body, including the blood of the brain, will be mobilized to the gastrointestinal tract. Sufficient blood supply is the premise of development. If it is often in the ischemic state, its development will be affected
overeating can lead to "obese brain"
overeating, especially eating too much high nutrition food, will greatly exceed the consumption of heat, making the heat energy into fat accumulation in the body. If there is too much fat in brain tissue, it will cause "obese brain". Studies have confirmed that human intelligence is related to the number of sulci folds. The more obvious the sulci folds are, the higher the level of intelligence is. The obese brain makes the sulcus and gyrus close together, the wrinkles disappear, the cerebral cortex is smooth, and the development of neural network is poor, so the intelligence level will be reced
gluttony can inhibit the physiological function of brain intelligent area
the way of human brain activity is that excitation and inhibition ince each other, that is, when some parts of the brain are excited, some areas of its adjacent parts are in a state of inhibition, and the more excited, the deeper the inhibition of the surrounding parts, and vice versa. Therefore, if the autonomic nerve center in charge of gastrointestinal digestion is excited for a long time e to overeating, it will inevitably lead to the inhibition of adjacent brain intelligent areas such as language, thinking, memory and imagination. If these areas are often in a state of inhibition, their intelligence will get worse and worse
overeating will damage the brain e to constipation
most of children's snacks are high nutrition fine food, which is prone to constipation. During constipation, the metabolites accumulate in the digestive tract for a long time, and proce a large number of harmful substances after the action of intestinal bacteria, which are easy to be absorbed by the intestine, enter the blood circulation, stimulate the brain, cause chronic poisoning of brain nerve cells, and affect the normal development of the brain
gluttony can also promote premature brain aging
scientists have found in a study that a substance that can promote premature brain aging, fibroblast growth factor, will increase by tens of thousands of times after meals e to overeating, which is a substance that can promote arteriosclerosis. Therefore, in the long run, gluttony will make the brain aging prematurely
} Komatsu blog collection. Please note if you want to reprint}
Hot content