-
It can only be said that we live on the solid or liquid surface of the earth, because the atmosphere is also part of the earth. Just as the diameter of the sun is more than 100 times the diameter of the earth, the sun is counting gas. In the same way that solar energy counts gases, the earth can also include the atmosphere, so it can also be said that we live in the mezzanine inside and outside the earth.
Why can't you feel the rotation of the earth. Because the reference object is too far away from us, and the nearest moon is still 380,000 kilometers away, we are equal to having no reference object to speak of, and without a reference object, we cannot feel the change, so we cannot feel the rotation. It's like a train on an endless field, and when you look at a mountain very far away, you feel that the train is not as fast as it is in the city.
The distance generated by the earth and the stars is countless times that of the train, and this infinite times makes us physiologically incapable of distinguishing and feeling the rotation of the earth, so we cannot feel the rotation of the earth.
-
Of course, the surface, the earth is a planet with a lot of mass, according to Newton's gravitational attraction there is a gravitational force between the earth and everyone, so the earth attracts people and other objects on its surface.
-
Of course, it's the surface, because we are very small to the earth, so even though the earth looks round from a distance, the ground we look at is flat.
-
Of course, it's the surface If it's an internal Shenjiu launch, wouldn't it hit the surface of the earth** You can check the information A lot of information says this problem.
-
On the surface, we don't fully understand the Earth, and it's much farther from the inside.
-
Humans live on the surface of the earth. The internal structure of the earth is divided into the crust, mantle, and core, and humans live on the earth's crust. The reason why humans do not break away from the ground is because of gravity, the mass of the earth itself is very large, and it will exert a gravitational pull on any object around the earth; Newton's law of gravitation states that there is a gravitational force between any two substances that have mass, and humans are attracted by a huge gravitational attraction so they do not fly.
Humans live on the surface of the earth. The internal structure of the earth is divided into the crust, mantle, and core, and humans live on the earth's crust. The reason why human beings will not get away from the ground is because of gravity, the mass of the earth itself is very large, and it will have a gravitational pull on any trace of the earth around the earth; Newton's law of gravitation states that there is a gravitational force between any two substances that have mass, and humans are attracted by the huge gravitational attraction of Ziyan, so they can't fly.
The internal structure of the Earth.
The interior of the earth has a layered structure of concentric spherical layers, and the material composition and physical properties of each layer change. The interior of the earth cannot be directly observed, so most knowledge about the interior of the earth is obtained indirectly. For example, the average density of the Earth can be calculated to be gram centimeters3, based on astronomical knowledge of the Earth's mass and geodetic shape and size. >>>More
The Earth may be destroyed one day, but it may be resurrected after the Nogan year, and it is possible that many planets may have had life when the Earth did not exist, but they are destroyed, and the climatic conditions and the interaction between galaxies are also related. It is also possible that some galaxies may still have life after the Nogan year, and for the sake of the future of mankind, we can only slowly build space passages and space stations, which may be the best place for human beings to take refuge in the future disasters, and can also reach the intermediate station and supply station to reach another planet.
If the resource is incorrect, or the version is incorrect, please feel free to ask.
In the soil, in the crevices of the stones
Just imagine, if aliens really come to Earth suddenly, then with the technology of our Earth so far, even if we don't want to welcome it, at least we can't keep our distanceThe reason is very simple, it is because our technology level is not as advanced as aliens, simply put, we may not want to welcome aliens, but we must also be forced to welcome, of course, if we are lucky, maybe aliens are goodwill, will communicate with us about technology, exchange each other's views, etc. But if we're unlucky, then the aliens are likely to bully us, and of course, if we really do something to bully us, it will be very difficult for us to resist. Personally, I think that if aliens visit Earth, there are a few things that could happen: >>>More