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The average thickness (radius) is 6371 km, the equatorial radius is 6378 km, and the pole radius is 6369 km.
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1,000 degrees of land and rice are flat, and the crust is thick and the ground is six and ten.
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After a long period of human understanding and scientific exploration of the earth, it is known that the earth is an elliptical sphere with a slightly shorter radius of the north and south poles and a slightly longer radius of the equator, and its interior is roughly divided into three parts: the crust, the mantle and the core.
The earth's crust is composed of a variety of uneven rocks, mainly composed of granite and other materials, except that the surface is covered with a thin layer of sedimentary rock, weathered soil and seawater. The thickness of the earth's crust is only one of the thinnest layers of the earth's structure. According to the latest data from scientists, the average thickness of the Earth's crust is about 17 kilometers (the average distance from the Moho interface to the surface).
Of course, because the earth's surface is uneven, the earth's crust is thicker in some places, such as China's Qinghai-Tibet Plateau reaching forty or fifty kilometers; Some places are very thin, such as in the depths of the ocean, where the earth's crust is only a few thousand meters. When people talk about the thickness of the earth, they should say that they mean this layer of the earth's crust. At present, human drilling is only 8 kilometers 10 kilometers, and it is far from breaking through the earth's crust.
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How thick is the earth, can humans dig through the earth, and will they encounter those problems.
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People can step on it, no matter how thick it is.
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How thick is the earth If you stand at the pole of the earth, then it is about 6 kilometers from the surface to the center of the earth; If you stand on the equator, it's about 6 kilometers from the surface to the center of the earth. The difference between the two is a kilometer. As you can see, the Earth is an ellipsoidal sphere.
If you stand at the summit of Mount Chimborasso (6,272 metres above sea level) in South America, which is located at 1°28 south latitude and 78°48 west longitude, the distance to the center of the earth is 6 km, which is the thickest place on earth and 2,151 m more than the distance from the world's highest peak, Mount Everest (8,848 m above sea level). Resources.
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How thick is the thickest mud on the ocean floor?
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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, carbon dioxide neon, water vapor and dust.
According to the different characteristics of each layer of the atmosphere (such as temperature, composition and degree of ionization, etc.), it is divided into troposphere, stratosphere, mesosphere, thermosphere (ionosphere) and outer atmosphere from the ground.
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, under the action of ultraviolet rays, form an ozone layer, which acts as a barrier to protect life on Earth from the attack of 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.
Human beings also use the thermosphere to achieve short-wave radio communication, so that people who are far away from the ocean can communicate with each other, because the atmosphere of the thermosphere is affected by solar radiation, the temperature is higher, the gas molecules or atoms are ionized in large quantities, and the recombination probability is less, 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.
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What is beyond human measure, what you can't imagine, friend...
The sky is more than 10,000 kilometers high, and the thickest part of the earth has kilometers. Sky height refers to the height of the atmosphere above the ground, according to scientists through the investigation of satellite spacecraft, gas molecules were found at an altitude of 2000 3000 kilometers, and at an altitude of 16000 kilometers, there are still traces of gas, so that scientists believe that the sky height should be above 10000 kilometers. Ground thickness refers to the thickness from the ground to the center of the earth. >>>More
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The thickness of the PU basketball court is 3mm, the thickness of the EPDM basketball court is the thickness of the basketball court, the thickness of the basketball court is plastic, the basketball court is composed of polyurethane rubber and other materials, with a certain elasticity, good color, a certain ultraviolet resistance and aging resistance, and is internationally recognized as the best all-weather indoor and outdoor sports floor material. All new plastic basketball courts should meet FIBA requirements: 28 meters long and 15 meters wide. >>>More