How fast does the Earth rotate ? Why don t humans feel anything?

The earth is the home we rely on for survival, human beings have lived on the earth for generations, in the eyes of the ancients, the mountains and rivers on the earth are stationary, but with the development of society, people gradually understand that the celestial bodies in the original universe are constantly moving. The same is true of the earth we live on, so some people are curious, how fast is the earth?

There are many people who are particularly puzzled, since the earth is in constant motion, why don't humans feel it? In the 19th century, there was an English physicist Foucault who was very interested in the movement of the earthSo I decided to do experiments to verify the rotation of the earth, first it made a simple Foucault pendulum on the roof, this Foucault pendulum is very simple to make, just hang a rope, and then connect a pendulum under the rope.

In the process of Foucault's pendulum, we can find the shock caused by the movement of the earth, and also discover the law of the earth's rotation. And through follow-up research, it was found that the circumference of the earth reached 24,000 miles, and if it takes 24 hours to rotate around one week, then it can be known that the rotation speed of the earth is 1600 meters per hour. This kind of movement speed is really surprising, even if people usually take the high-speed trainIt may have a maximum speed of about 350 kilometers, and it is indeed quite surprising that the Earth is able to rotate at such a high speed.

Since the Earth is a sphere, the velocity of each latitude is different, because the velocity is highest at the equator, so it is counted from the equatorThe circumference of the equator is about 40,000 kilometers, and the linear speed of the Earth's rotation can be calculated to be 466 meters per second according to the average angular speed of rotation, and the speed of the Earth's rotation will change according to the seasons, slower in spring and faster in autumn.

This is mainly due to the seasonal changes in the wind, but from such a data, it seems that the speed of the earth's rotation is very fast, but we humans live on the earth and have no sense of the earth's rotation, we actually have the same speed as the earthBut because of the relativity of motion, we feel as if we are still on the surface, and the only thing we can feel is the change of seasons due to the rotation of the earth.

With these data, you can get that the rotation speed of the earth is about 1600 meters per hour, and the speed is very amazing, you know, even if the plane flies very high in the air, it is only more than 400 kilometers per hour, and the rotation speed of the earth is very farThere is no way for us to detect this speed. Also because we don't have a reference around us, because the objects around us are fixed and they also rotate with us, it's hard for us to notice this phenomenon. A lot of people were shocked after watching it, they didn't expect that the earth was moving at such a fast speed.

It takes 24 hours for the earth to rotate around one week, and the speed of the earth's rotation can be calculated to be 1600 meters per hour, which is very fast, and we don't notice it because the objects around us are rotating with us, and there is no reference to make comparisons.

One rotation of the earth is a day, that is, 24 hours, and there are attractive objects between them, so we can't feel the rotation of the earth, but we can feel the rotation of the earth through the sun.

At 1,600 meters per hour, this speed is very fast, and this is due to gravity, so humans will not feel it obviously.

The Earth's rotation speed is about 1,000 miles per hour, which is still quite large, but for us, the Earth is very large, and we are just a small ant on the Earth, so we can't feel it turning.

The essence of people's feeling about the revolution of the earth is everyone's centripetal force feeling around the sun, although the speed of the earth's revolution is very fast, but the centripetal acceleration of the earth's revolution is too small, the centripetal acceleration multiplied by the mass of the person is equal to the centripetal force felt by everyone, and the mass of the person is too small relative to the earth, and the centripetal force is almost 0 when calculated, so the revolution of the earth cannot be felt.

It is said that sitting on the ground and traveling 80,000 miles a day is talking about the rotation speed of the earth, and we don't feel it at all because we are moving with the earth and are in a relatively static state.

The speed of the earth's rotation is quite fast, mainly because we have adapted to the rotation of the earth, so we don't feel it, and we don't feel it in our daily life.

The speed is particularly fast, and in daily life, people are relatively far away, and they do not touch the surface, so they do not feel anything.

The speed of the Earth's rotation is 1,600 meters per hour, the circumference of the Earth's bench is 24,000 miles, and the Earth's orbit is elliptical. Because the earth rotates very far and there is no reference around it, it feels like the earth is stationary, so it is not felt in people's daily lives.

The speed of the earth's rotation is very fast, and the reason why people don't feel it in their daily life is because of the gravitational force of all oaks, so people can't clearly sense the speed of the earth's rotation.

Very fast. Because we are also moving, we don't feel how fast the earth is spinning in this kind of life.