Please explain the reason for the difference in rotation speed between the Earth s core and the Eart

The exploration of the Earth's magnetic field began around 1600. There are a lot of hypotheses. The main ones are:

1: The theory of permanent magnets (was first proposed).

2: The doctrine of internal currents.

3: The Theory of Charge Rotation.

4: The Piezoelectric Effect Theory.

5: The theory of the gyromagnetic effect.

6: The theory of thermoelectric effect.

7: The Generator Doctrine.

8: The Theory of the Rotating Body Effect.

9: The Doctrine of Magnetic Field Line Kinks.

10: Hall Effect Doctrine.

11: The Theory of Electromagnetic Induction.

Among these theories, most believe that the Earth's magnetic field is due to electricity. The theory of generator (also known as the theory of magnetofluid generator) has been more certified in observation, experiment and theoretical research, and is the theory of the earth's magnetic field that has been studied and applied more at present.

But if the Earth's magnetic field is generated by electricity, how can the Sun's magnetic field be explained? In particular, how to explain the 22-year cycle of the Sun's magnetic field?

In my opinion, all astral magnetic fields originate from the principle of unipolar induction, which is a positive feedback formed by cutting its own magnetic field when it rotates. As long as there is enough rotation speed, a magnetic field will appear in the star. There are two supporting pieces of evidence for my view:

1. A number of experiments have confirmed that a rotating magnet cutting its own magnetic field lines will produce an electric current (such as Faraday's test, Kennard's test, etc.).

2. Venus is very similar to other parameters of the earth, but the rotation speed is very low, there is no magnetic field, so it should be correct to say that the origin of the magnetic field is closely related to the rotational speed.

Thunder upstairs to me...

It's a physical problem ... You shouldn't post it here.

In your experiment, the water in the basin is fluid, so you can't simply apply the motion of a rigid object.

It must be taken into account that it is fluid fluid mechanics...

The outer core is a fluid, but the question of why the Earth rotates is still inconclusive.

Let's talk about why the outer core of the inner core and the outer solid sphere of the inner core rotate at different speeds, and I don't think there's an explanation.

However, the exonuclear is a high-temperature fluid, and the nature of the fluid must also be considered...

Let's go and ask the master for advice.

The angular velocity is the same, the linear velocity is different, and the displacement of the rotation is different.

In this model, the rotation of the basin is formed by an external force, while the rotation of a pear is formed by the force generated by the rotation of water, and water is a liquid with much larger molecular spacing than a solid, so there is a certain velocity difference.

The friction between liquids, and between liquids and solids, is related to the relative velocity of the two. Whereas, solid-to-solid friction depends on their coefficient of friction and is theoretically valid as long as it does not break the upper limit.

The Earth itself has quite a large mass, so it also exhibits gravitational pull on any objects around the Earth. Take a cup as an example, the earth shows gravitational pull on the cup at any time, and the cup also shows gravitational pull on the earth. The mass of the earth is too large, and the gravitational pull on the cup is also very large, so the cup is attracted to it, and the direction is towards the center of the earth, and this force is gravity.

Gravity is not equal to the gravitational pull of the Earth on an object. Due to the rotation of the earth itself, in addition to the poles, the objects in other places on the ground are moving in a uniform circle around the earth's axis with the earth, which requires a centripetal force pointing perpendicular to the earth's axis, and this centripetal force can only be provided by the earth's gravitational force on the object. The other component g is the gravitational force on the object (as shown in the figure), where f1 = mw2r (w is the angular velocity of the earth, r is the radius of rotation of the object), and it can be seen that the magnitude of f1 is zero at the two poles, which increases with the decrease of latitude limbs, and is the maximum f1max in the equatorial region. Because the centripetal force of the object is very small, in general, it can be considered that the gravitational force of the object is the magnitude of the gravitational force, and the effect of the rotation of the earth can be omitted under normal circumstances.

There is a problem with this question in itself, and it seems that you don't seem to understand much about what attraction is, and I think you won't ask this question again if you understand what gravity is.

According to Newton's classical mechanics, gravity is a force produced by an object on other objects due to the property of mass, and the gravitational force is mutual, in other words, the earth has a gravitational pull on you at the same time, and you also have a gravitational force on the earth, and the two are completely equal, and the gravitational force follows the inverse square law. According to Einstein's theory, gravity is a superficial effect produced by the curvature of space, that is, the "gravitational effect", in which objects distort space-time due to their own mass, especially large celestial bodies. (This is a very popular expression).

In addition, our most common gravitational force, which we think is a very strong force, is actually the weakest force in the whole universe, the strong nuclear force, the weak nuclear force, and the magnetic force are more than a million times stronger than gravity, but gravity is the most common force, which is a very interesting thing in the universe, but fortunately, otherwise there would be no life.

To sum up, your question is actually asking the wrong question. I hope my answer can be helpful to you, if you are interested in physics, it is recommended to read more popular science books instead of textbooks, textbooks will only make people lose interest and inspiration, and it is completely repeating the mechanical calculations of others countless times. I recommend you watch "Parallel Universe", "A Brief History of Time" or something, it's pretty good.

Produced throughout the earth.

Gravitational force, that is, there is a gravitational force between any object.

We usually don't get attracted to anything, because the gravitational force is not big enough, every place on the earth is attracted to you, as a whole, it can be equivalent to the geocentric attraction of you, but gravity is generated by every part of the whole earth.

This is gravity, there is an attraction between all matter, this is gravity. But there is no explanation as to why gravity arises. You can refer to:

If you drill a well through the earth and you jump down and fall to the center of the earth, the gravitational force will be zero, but due to inertia, it will continue to fall towards the opposite wellhead, stop at a position close to the wellhead (the velocity is zero), and then fall back again...., kinetic and potential energy conversion. Finally stop (levitate) at the center of the earth.

Radioactive materials are releasing energy from the Earth's interior.

The internal radioactive elements undergo a half-life decay, similar to that of the nuclear reaction vertebrae, releasing energy.

Hydrogen-helium nuclear fusion releases energy.

Wow, you want to destroy the world! Don't think about it for a day, scientists don't want that.

Since the Earth is a spheroid with slightly bulging equators and slightly flattened poles, the distance from the center of the earth is different from place to place, with the maximum equator being 6,378 kilometers and the poles being the smallest being 6,357 kilometers. The average is 6,371 km.

Average radius of the Earth: km.

Earth's equatorial radius is km.

There are three commonly used values for the radius between the spheres and the center of the earth, i.e. (the radius of the earth).

Polar radius: The distance from the center of the earth to the north or south pole, about 3,950 miles (km) (the difference between the poles is negligible).

Equatorial radius: The distance from the center of the earth to the equator, about 3,963 miles (kilometers).

Average radius: Approximately 3959 miles (

km). This number is the average of the distance from the center of the earth to all points on the earth's surface.

The center of the earth is in the interior of the earth, and it is probably a circle, and as for what is inside, it is still being debated, so look at this.

It's just a general range, and it's still an artificially prescribed ......

Because of the liquid iron formed by high temperature and high pressure, the ** of internal energy, the earth's magnetic field is formed because of these irons.

Liquid iron. Molten iron.

Not lumps.

No, it's the center of the earth – the heart of the earth.

It is in a molten state, which is formed during the formation of the earth, so there is a magnetic field of the earth.

It's a huge magnet.