How far is heaven and earth, how far is heaven and earth

If only to the atmosphere.

As a criterion for consideration, heaven and earth.

The distance between is about 30 km. About 30 kilometers away, it was already beyond the outermost layer of the atmosphere, into the vast and infinite universe.

Under the gravitational pull of the earth, a large amount of gas gathers around the earth, forming an atmosphere of thousands of kilometers. The density of the gas becomes thinner and thinner as the height above the ground increases. Sounding rockets still found a rarefied atmosphere at an altitude of 3,000 kilometres, and it is suggested that the upper limit of the atmosphere may extend to about 6,400 kilometres above the ground.

Scientists estimate that the mass of the atmosphere is about 6,000 trillion tons, almost one millionth of the total mass of the Earth, including 78% nitrogen, 21% oxygen, argon and carbon dioxide.

Neon, in addition to water vapor and dust, etc.

According to the different characteristics of the atmosphere (such as temperature, composition, and degree of ionization), each layer of the atmosphere is divided into tropospheres starting from the ground.

Stratosphere, mesosphere, thermosphere (ionosphere.

and the outer atmosphere.

The movement of air in the layer of the atmosphere close to the earth's surface is called the "troposphere" by convective movements dominated by updrafts and downdrafts. It varies in thickness, with a thickness of 8 kilometers above the Earth's poles and 17 kilometers above the equator, making it the densest layer in the atmosphere. Almost all the water vapor in the atmosphere is concentrated here, and it is a "big stage" to show the changes of the wind and clouds

Weather phenomena such as wind, rain, and snowfall all occur in the troposphere.

Above the troposphere, up to 50 kilometers above sea level, the air flow mainly moves horizontally and the convective phenomenon weakens, and this atmosphere is called the "stratosphere", also known as the "stratosphere". There is basically no moisture, it is clear and cloudless, and there are few weather changes, making it suitable for airplanes. At an altitude of 20 to 30 km, oxygen molecules are in ultraviolet light.

Under the action, the ozone layer is formed.

It acts like a barrier to protect life on Earth from the sun's energetic particles.

Above the stratosphere, up to 85 kilometers above the Earth's surface, it is called the "mesosphere", also known as the "fugitive layer". Above the mesosphere, up to 500 kilometers above the Earth's surface, it is called the "thermosphere". Within these two layers, many interesting astronomical phenomena such as auroras, meteors, etc., often occur.

With the help of the thermosphere, humans have also achieved short-wave radio communication, so that people who are far away from the ocean can communicate with each other, because the atmosphere in the thermosphere is exposed to solar radiation.

When the temperature is high, a large number of gas molecules or atoms are ionized, and the probability of recombination is small, forming an ionosphere, which can conduct electricity and reflect radio short waves.

Above the thermopause is the outer atmosphere, which extends to 1,000 kilometers above the Earth's surface. The temperature here is high, reaching thousands of degrees; The atmosphere is extremely thin, with a density of 1 billionth at sea level.

This seems to be an idiom that can be used as a metaphor for "the end of the world is at hand".

There were 84,340 miles between heaven and earth.

Using the data of "geosynchronous orbit satellites", it is found that the altitude of the satellite entering space from the earth is about 35,800 kilometers. Plus the radius of the earth.

The surface of the earth where humans live to the center of the earth is 6370 km; The sum of the two is 42,170 kilometers, which translates to 84,340 miles.

It is basically consistent with the distance between heaven and earth "84,000 miles" in ancient times; Whether it is the myth of Pangu or the statement of Zhuangzi, 90,000 li is just a whole number. This has to surprise the wisdom of the ancients to know this distance so accurately.

Records in the Classics:

The Taoist book "Jade Book Record" "The sky has the main road and accumulates qi to cover the bottom, and the earth has the kun road and supports the quality to carry it on the top." Between the loads, the upper and lower parts are 84,000 miles apart, and the temperament cannot intersect." This sentence also recognizes that heaven and earth are formed by the Yuan Qi (formed or not), and clearly states that the distance between heaven and earth is 84,000 li.

Because of Taoism. He put forward the view of yin and yang, and believed that the sky is the essence of yang and the earth is the essence of yin, and this distance of 84,000 li is divided.

The book "True Source Righteousness" adds, "Between heaven and earth, the one who is close to the top is the Yang Kongsen, from top to bottom, 42,000 buckets of simple acres, which is called the yang position." Those who are close to the bottom are yin, and from the bottom to the top, 42,000 miles, it is called the yin position." In this way, heaven and earth are divided equally, which can be regarded as the support of the theory of yin and yang balance.

You can't see it with the naked eye, it can be said to be endless.

It is the outermost layer of the atmosphere, the transition area of the atmosphere to interstellar space, and there is no obvious boundary outside. Under normal circumstances, the upper limit is lower near the geomagnetic pole, and the near-magnetic equator is on the sun-oriented side, about 9 10 Earth radii high, in other words, about 65,000 kilometers high.

There is a total of 90,000 li between heaven and earth, and the distance between Heng and Heng is called between, and the distance is 19,500 li. We know that in the myth of Pangu Jingji, it has been mentioned that the turbidity is heaven and earth, and it is said that Pangu has nine changes in one day, and it is believed that the extreme number starts from one, stands in three, becomes in five, flourishes in seven, and is in nine, so it is believed that the heavens and the earth go to 90,000 li.

Heaven and earth are separated by narration

Heaven has to be dry and accumulate qi to cover the bottom, the earth has to be bright, socks Kun Road and support the quality to be contained in the upper cover, the upper and lower are 84,000 miles apart, and the temperament can not intersect This sentence also recognizes that heaven and earth are formed by whether the vitality is formed or not, and it is clearly said that the distance between heaven and earth is 84,000 miles.

Since the Taoists put forward the view of yin and yang, and believed that the sky is the essence of yang, and the earth is the essence of yin, this distance of 84,000 li has been divided, and the book of true origin adds that between heaven and earth, the one who is close to the top is yang, from top to bottom, 42,000 li, which is called yang.

Those who are close to the lower are yin, from the bottom to the top, 42,000 miles of reverence, which is called the yin position, so that the heaven and the earth are equally divided, and it can be regarded as the support of the theory of yin and yang balance.