What is the largest circumference of the Earth? Please, 3Q

After looking around along the equator, we will find this place, which is Mount Chimborazo, a beautiful mountain located in the middle of Ecuador in South America. The height of the sea of Mount Chimboraso is 6,272 meters, which is not too high among the world's peaks, and there are countless peaks that are taller than it, but the distance from its summit to the center of the earth is 6,384,100 meters, which is the farthest peak from the center of the earth. Although Mount Everest is meters above sea level, the distance from it to the center of the earth is only 6381949 meters, and the lower level is 2,151 meters, so the thickest place on earth is the summit of Mount Bichinborasso.

Remember.

The circumference of the Earth's equator is about 40,076 kilometers.

The Earth's equatorial radius is kilometers, the polar radius is kilometers, the average radius is about 6371 kilometers, and the equatorial circumference is about 40076 kilometers. The surface area of the earth is 100 million square kilometers, of which 71% is oceans and 29% is land.

The interior of the earth has a core, mantle, and crust structure, and the outside of the earth has a hydrosphere, atmosphere, and magnetic field. The Earth is the only celestial body in the universe where life is known to exist, and it is home to millions of living beings, including humans.

In high school physics, the diameter of the earth is 64,000 meters, which can be calculated with a formula for circumference

The radius of the tract is slightly longer, which is slightly shorter than the radius of the poles, and the polar axis of the equivalent sphere of the plane of rotation. According to the International Association of Earth's Shape and Geophysics, published in 1980 the main data on the scale are as follows:

Equatorial radius kilometers.

Polar radius kilometers.

The average radius is kilometers.

Flat rate 1 km around.

The surface area is square kilometers.

Volume 10832 108km3

In fact, the circumference of the equator is kilometers.

The radial shape of the Earth and the sphere is slightly higher than flat. Its southern hemisphere is slightly thicker and shorter, and the concave antarctic is about 30 inward; The Northern Hemisphere is a bit thin, long, and protrudes upwards about 10 m above the North PoleSo it is an exaggeration to say that the true shape of the earth is slightly pear-shaped.

In ancient China, some people put forward the "theory that the sky is round and the place is round", and later some people put forward the "theory of covering the sky". The ancient Greek philosopher Pythagoras found that the top of the mast was always the tip of the mast that first showed the horizon, and only then did he see the entire hull, so he speculated that the surface of the earth must be round.

The philosopher Aristotle also discovered that the further north you go, the higher you see the North Star above the ground; And the further south you go, the lower you see Polaris above the ground. He also studied the phenomenon of lunar eclipses and the arc-shaped dark shadow around the edge of the moon, from which he deduced that the earth was a spherical thing.

In the 2nd century AD, Zhang Heng, a scientist in the Eastern Han Dynasty of China, put forward the "Hun Tian Theory", affirming that the earth is spherical. In 1519 AD, the Portuguese explorer Magellan led a fleet to complete the first voyage around the world, and mankind finally truly realized that the earth is spherical.

The Earth is a sphere, but due to gravity, it is not a perfect sphere, and the equator bulges outwards to form a "spare tire" structure. In fact, the polar radius of the Earth is kilometers, while the radius of the equator is kilometers.

The Earth is actually an irregular circle, approximating a ball row. If you believe your eyes, you can go to the moon to see it, and I have already landed on the moon and found that the earth is round!!

Earth is one of the eight planets in the solar system, the third planet in order of near and far from the sun, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system.

The Earth is a sphere, but due to gravity, it is not a perfect sphere, and the equator bulges outwards to form a "spare tire" structure. In fact, the polar radius of the Earth is kilometers, while the radius of the equator is kilometers.

The Earth is an ellipsoid that is so close to a perfect circle that we usually think of it as a perfect circle. Due to the autobiographical nature of the Earth, the equatorial region is slightly uplifted and the poles are slightly concave. The average radius of the earth is, the equatorial radius is, the polar radius is, the radius difference is, and the eccentricity is only, so if you look at the earth from space (like looking at the earth with Google Earth), you can't see that the earth is an ellipsoid, but a very standard regular circle, because it is difficult for the human eye to distinguish such a tiny eccentricity.

As for the unevenness formed by the mountains and basins on the earth's surface, the difference is smaller than the eccentricity of the earth.

It's not round, don't you see the bumps?!!

The Earth is a sphere and nucleus, but due to gravity, it is not a perfect sphere, and the equator is bulging outwards around it, forming a "spare tire" structure. In fact, the radius of the Earth's poles is kilometers, and the radius of the Absolute Shed is kilometers.

Yes, the Earth was born a long time ago when rocks in the solar system collided with each other to form planets. From the beginning of its formation until the present, the earth has been mainly composed of liquid rocks. In space, where gravity is minimal, liquid matter will automatically form a spherical shape.

Experiments conducted by astronauts with substances such as water, fruit juice and liquid metal in the space environment have proved this to Duan. The Earth is a huge liquid sphere at a considerable distance from the Sun, which gradually forms a circle as it moves through space.

Asteroids and small stars such as the moons of Mars are so weak in their gravitational pull that they cannot form a circle once they form a solid star. Due to the large size of the Earth, its gravitational pull is strong enough to make itself circular. If there is no tectonic plate movement that makes the peaks taller, gravity will make the Earth become more and more round.

If you still don't understand, let's take a step back: imagine what it would be like if the Earth was square, tetrahedral, or some other object that doesn't hold the rules. The first thing that appears is that there will be a lot of mountains on the earth.

Don't say I'm kidding you)

Then the Earth will rotate irregularly (and why?) You think, it's not round, it's uneven, it's unbalanced! And then it will be more susceptible to impact, and the wind in the universe will not be merciful, so what will happen?

He's going to be smoothed out over and over again.

Burnish. And rounding, so in the end it's still round.

Why is the earth in a circular cavity and trembling? Defeated.

The Earth is a sphere, but due to gravity, it is not a perfect sphere, and the equator bulges outwards to form a "spare tire" structure. In fact, the polar radius of the Earth is kilometers, while the radius of the equator is kilometers.

For such a big guy as Earth, the idea of surface tension is completely meaningless.

Although the earth is solid, the overall rigidity of its solid state can indeed be regarded as liquid relative to the whole huge body, and it can be said that its rigidity is zero, so it is ---

All stars that have reached a certain level of volume and mass will collapse and move internally under the action of their own gravity, resulting in the greatest degree of overall chaos and the least energy. In the end, it tends to equilibrium in all directions, so that all the planets are eventually spherical, and for the Earth, the diameter in the equatorial direction is larger than in the polar direction due to the centrifugal action of rotation.

As for the craters of the Arctic and the bulges of the South Pole, this is not surprising, this is the movement of the earth's crust, there is no absolute sphere, like mountains and oceans.