"Cold" come from

Chinese medicine stresses "cold", that "cold" can invade the human body, causing disease and pain. But "cold" come from  Many doctors are not in the clear. Doctors do not speak "cold", "hot", they talk about the human body, human disease and suffering from inflammation, bacteria, virus infection. This is in Western's two biggest difference. So, say "cold", the first from talking about the Earth's atmosphere, Earth's atmosphere structure:

(A) Troposphere: The troposphere is the lowest layer of the atmosphere, and its thickness varies with latitude and season. Near the equator to 16-18 km (from the ground); in the mid-latitudes of l0-12 km, 8-9 km near the poles. Thick in summer and winter thinner. This layer of the salient features: - is the increase of temperature decrease with height, an increase of about every 100 meters, the temperature decreased 0.6 ○ C. To the tropopause at about -55 ○ C. Low latitudes the tropopause temperature of about -83 ○ C, high latitudes the tropopause temperature of about -53 ○ C. As the air close to the ground the heat emitted by the ground impact of inflation rising above the cold air down, so in the vertical direction to form a strong convection in the troposphere is also why its name; second density, the total mass of the atmosphere 3 / 4 or more concentrated in this layer. In the troposphere, due to different effects on the surface, can be divided into two layers. In l-2 km, by surface mechanical, thermal effects strongly, known as the friction layer, or boundary layer, also known as the lower atmosphere, the vast majority of pollutants into the atmosphere activities in this layer. In the 1-2 km above the surface affected by the smaller, known as the free atmosphere, the weather during the main rain, snow, hail formation are present in this layer. Therefore, the steam rising into the cloud is not affected by height, but influenced by temperature. Troposphere and the human most closely.

(B) the stratosphere: from the tropopause to about 50 km of the atmosphere to the stratosphere. In the lower stratosphere, 30-35 km that is, small changes in temperature decrease with height, temperature stabilized, also known as the stratosphere. In the 30-35 km, temperature increasing with height and increased. Stratospheric features: First, there is no air convection, advection movement accounted for a significant advantage; Second, the air is much thinner than the lower, water vapor, dust content is minimal, rare weather phenomenon; third is about 15-35 km in the high within a 20 km thick - layer of ozone, because ozone absorbs sunlight with the ability to short-wave ultraviolet light, so the stratospheric temperature increases.

(C) the middle layer: from the top of the stratosphere to 80 km altitude, known as the middle layer. This layer of air is more rarefied, the temperature decreases with height. Here the average temperature in the -93 ○ C.

(D) thermal layer: from 80 km to about 500 km is called thermal layer. This layer temperature increases rapidly with height, layer temperature is high, a large diurnal variation, at 300 km altitude, the temperature up to 1000 ○ C above, the lower layer there is a small amount of hot water there, so occasionally there will be white and blue luminous cloud microstrip.

(E) the escape layer: hot layer above the layer of atmosphere known as the escape. This layer of air in the solar ultraviolet and cosmic rays under the action of ionizing most molecules; so much higher than the proton content of neutral hydrogen atoms of the content. Extremely thin layer of air escape, and its density is almost the same density and space, it is also often referred to as outer atmosphere. As the air by the force of gravity is extremely small, gas and particles flying out from this layer of the Earth gravitational field into space. Escape layer is the outermost layer of Earth's atmosphere, the upper layer where there is no consensus view. In fact the Earth's atmosphere and interstellar space, and there is no sharp boundaries. Escape layer temperature increases with height increased slightly.

By sunlight, ground and sea level rise in water vapor to form water vapor, but water vapor in up to 5 km above sea level, encountered cold air layer, the larger will be condensed into water droplets to form clouds, fog . Zaiyu strong cold air, will form rain down, in case more cold air, they form snow, hail down. In other words, the ground could not escape the rising water vapor is the atmosphere. So, in the troposphere and stratosphere cold air come from  Surface temperature (except frozen-band) above freezing year round, while the hot layer temperature and above in 1000 ○ C, that is, two hot, intermediate cold. If there is no constant supply of cold air, the middle 30 km thick layer of cold air in the Earth billions of years of growth, perhaps the sun has long been melted out. In other words, the Earth has been manufacturing air-conditioning, supply of cold air layer in the atmosphere. We know that the Earth's North and South poles year round snow, so, in each of the poles in the cold source, the cold source to supply air to the atmosphere, in order to maintain the atmosphere of the cold air layer has sufficient consumption. Starting from the winter solstice, the cold air layer has saved enough energy, the cold source will stop cooling. As the Earth constantly rotates around the sun and cold air to dissipate as the weather is also getting hot. To the summer solstice, the cold air layer is thinnest at the time, the sun has run cold source will start cooling. As the Earth constantly rotates around the sun and cold air piled thick, cold weather is more and more. Why talk about this problem

This issue will be from the "Book of Changes" Speaking of, twelve provision of Gua to take home to learn the Han Dynasty "Book of Changes" hexagrams hexagram in the twelve special-shaped, with the month of December the year candidate, indicating the nature all things "yin and yang, the message" that the "second provision of Gua", also known as "Gua month", "waiting Gua", "message Gua." Twelve provision of a source of very ancient hexagram, they said that first appeared in the "return to Tibet": "child" complex "ugly" temporary, "Yin" Thai ", d" Lie, "Chen" Jue ", had" dry ", afternoon, "Sinica", not "escape," Shen "No", unitary "concept," Xu "stripping" hai "Kun". "
On the winter solstice every child in November, a positive effect, that is yang began to rise; south and north poles of the cold source to stop cooling. Ugly on 2 December actinolite, yin month Sanyang students, saying "auspicious beginning" which means this; Uzuki four actinolite, Chen on 5 sun, had on Chun-yang, heaven and earth full of yang. Negative effect May 1, comes at the summer solstice, beginning with the coolness, then the polar cold source point cooling; This is the southern hemisphere winter. Shade from June, July, yin, the yin from the August 4, September Wu Yin-sheng, to October between heaven and earth is full of chi. Why is it so  We know that in the summer solstice when the earth farthest from the sun, this time the extent of sunlight exposure is just able to withstand the earth, and the atmosphere is thinnest at this time. With the rotation of the Earth around the sun, the earth from the sun is getting closer, so students from the Earth's chi (also known as cold), to resist sunlight exposure.

Earth's cold is the Antarctic, the Arctic cold source is issued, then surging with the atmosphere, and let the wind to the country. Therefore, the more hot weather, the more we feel cool. As the Earth from the Sun is getting closer, the more cold the more students, to October, between heaven and earth full of cold, then has been very cold, enough to withstand exposure to sunlight. To November, the winter solstice, the Earth from the Sun recently, the atmosphere is full of air, at a time when the atmosphere is the thickest. At this time the Earth's polar cold air source is no longer issued, but issued a yang, because the winter is over, farther and farther from the Sun on the Earth, the Earth issued a yang, in order to facilitate the regeneration of all things, it goes said: "The five thousand nine hundred sixty-nine the riverside to see Liu," The more students with more yang, cold less and less, the weather will become increasingly hot. Earth is elliptical so it goes to rotation around the sun, round and round, year after year.

Earth's farthest point from the Sun and the nearest point difference of about 500 million km. Which is not immutable, the closer the Earth from the sun, the sun's gravitational pull is stronger, faster. From the perihelion to aphelion, when on the contrary, to run slowly. Planets within the solar system, the extent and speed of rotation is not the same, so the Earth's magnetic field effects are not the same, but with the entire solar system rotating around the galactic center, the Earth's magnetic field effects will be more different. Therefore, the Four Seasons on Earth roughly the same, but the specific year of the four seasons are not the same.

Earth's atmosphere, the ionosphere is an ionized region. 60 km above the Earth's atmosphere are in a partially ionized or completely ionized state, the ionosphere is a partially ionized atmospheric region, fully ionized atmospheric region called the magnetosphere. It was also the ionization of the atmosphere called the ionosphere, so put the magnetosphere as a part of the ionosphere. About the Earth's surface from 100 to 800 km. The most prominent feature is that when sunlight when the sun's ultraviolet rays is the layer absorbs the oxygen atoms, so the temperature rises, so that they warm layer. Dissipation layer in the warm layer, composed of charged particles. These are the top layer of hot outer atmosphere, extending 1,000 kilometers from the Earth's surface. Where the temperature is high, up to thousands of degrees; the atmosphere is extremely thin, and its density at sea level, a billion billion to one.

We conclude that, at both ends of the Earth's atmosphere is hot, the middle layer of cold air, there is a long time, the cold air layer is provided by the cold air north and south poles, respectively, if the north and south poles and are not available to reduce cold air, then Earth's atmosphere in the cold air will be exhausted sooner or later. So, why the north and south poles to provide cold air it  Production of cold air based on what they do  I am not a scientist, I have not been to north and south poles, so I do not know.

However, it is certain that, not because the poles have cold glaciers thousands of years, but in the cold cold air source issued only when the formation of glaciers in the vicinity. Human production of air-conditioning of the original using Freon, now with hydrocarbon refrigerants, such refrigerant R600a is an excellent new hydrocarbon refrigerant, from natural ingredients, does not damage the ozone layer, without the greenhouse effect, green. So what ingredients the earth cooling it  Will use natural gas it  Will use oil  I do not know. If the earth in the natural gas cooling, and we humans are rushing to use natural gas, then hidden in the earth where natural gas will soon run out. Like coal, oil, is limited. Recognizing the important role of the Earth's atmosphere, we humans should strive to protect the atmosphere, while also protecting the north and south poles the cold source, cooling the material to protect the Earth.