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The shape of the stars in the universe is determined by three factors: the quality and energy distribution of the star-making energy related to the time and time of the star-making of the star-making body, and the state of the star-making state. When we understand life as the "activation" of astral matter, we might as well also understand astral matter as a kind of "solidification" of cosmic energy matter. In the vast universe, because the quality, distribution, and star-making state of various energies are random, it is impossible to copy and repeat them, so the solidification and formation of each star will appear to have its own place and become its own faction.
Arranged in a variety of ways, the shape of the cosmic stars can be roughly divided into eight categories: 1. Angular stars. Second, the long star.
3. Branched stars. Fourth, spherical stars. 5. Oblate star.
6. Combined stars. Seventh, even the stars. 8. Alien stars.
It should be noted that even within the same category of angular stars, there are also differences in triangular, pentagonal, hexagonal, octagonal, multi-angled and other star types. Within a long star, there is also a difference between a rectangular and a cylindrical star. There are even greater differences within the branch-type stars, some have three or two abrupt star branches, some have seven or eight star branches of length and shortness, and some have the whole star body covered with star branches, shaped like a thorn ball ......The length of its branches also varies between short and thick, and narrow.
Even stars mean that there are more than two, or three or four, or six or seven stars, which seem to be worn into a string, and can move synchronously and advance and retreat at the same time. Among the stars, the most eye-opening are the alien stars. Their external shape is far beyond human imagination.
For example, there are stars in the shape of a barbell, a mushroom, a droplet, or a jujube pit. There are more unusual ones, some stars have several protruding pillars on one side, and the shape of the star is like the palm of a human hand; or one large and one small, and the shape of the star is like a curved horn; Some are a string of planets juxtaposed, and the stars are shaped like sugar gourds; There are also a pointed cone, the other is round, like a pencil shape, and even the star itself twists and turns, like a twisted flower, ......and so onIn addition to their shape, the stars also have large, medium, and small volumes, and are different from super-large and super-small. It seems that the stars in the sky are all round, and our universe is like a doll kneading plasticine, blooming with thousands of colors from whatever it wants.
You'll be an astronomer!
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If the universe is not generated, the reason why the stars are spherical will be ignored for the time being. If the universe is created by a large **, why can't stars be spherical?
First of all, we can't understand the birth of the universe in terms of conventional**, the ** on our earth will expand outward under the influence of gravity and drag force at a smaller and smaller rate, but the expansion of the universe is accelerating, how can this be explained by a simple **? So scientists introduced the concept of dark energy to explain the accelerated expansion, and used it to correspond to the constants that Einstein later added to the gravitational equations of general relativity.
Scientists have calculated that dark energy accounts for 69% of the total mass of the universe, and scientists believe that dark energy density is a cosmic constant, which is distributed in all corners of the universe, exerting its influence on the visible matter in the universe, including various stars.
Secondly, the universe is not directly produced by the star, the star is slowly formed by absorbing and annexing the surrounding matter after **, the time should be very long, when the star exceeds a certain mass limit, it gradually becomes spherical under the action of its own gravitational force to the center of gravity, because the spherical shape is a super-perfect symmetrical figure evenly stressed, just like the dew drops under the action of surface tension to make the surface area of the smallest, the same volume of material spherical surface area is the smallest, so the massive star is finally spherical.
Large celestial bodies are only roughly circular, and the specific details do not look circular, such as Mount Everest on our earth is more than 8,000 meters above sea level, and the peaks on Venus are even higher than more than 16,000 meters, they are larger than many small celestial bodies, and they are not bridged into a spherical shape, so some small mass celestial bodies cannot become round.
On the other hand, due to the instability of the center of gravity, some non-spherical massive celestial bodies will inevitably deviate from their orbits and eventually collide with other celestial bodies or be swallowed by other massive celestial bodies, making it difficult for them to exist. These things are easy to say, but in fact it takes a long time, the universe has been 13.8 billion years now, and most of the celestial bodies in the universe have become spherical, and I believe that in a few years all the celestial bodies in the universe will become spherical.
Finally: the sphere is the most perfect shape in the world, the ancient Greeks worshipped the sphere very much, Aristotle did not know that the earth was spherical and firmly believed that the earth was spherical, and called it "earth", this truth even the ancient Greeks knew, how could the universe not know?
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Because the gravitational effect of matter all comes from the center, all matter moves around the center point and after a long period of evolution, all of them are gathered in a circle. So the stars are all round.
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Because most of the stars in the universe have a strong gravitational pull, which can attract objects on the stars to move closer to the center, most of them are round.
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This is because only a round thing can have a point of support that allows an object to move around an object with a uniform speed and regularity.
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Most of the stars, planets, and moons in the universe are spherical, and the reason for all this can be attributed to gravity. All the atoms in the object are pulled towards a common center of gravity, and the electromagnetic and nuclear forces are able to prevent further collapse, and the two reach equilibrium, and the end result may be a sphere. In practice, stars with diameters of less than 500 km usually take on an irregular shape.
Gravity is uniform in all spatial directions. The greater the mass of the star, the stronger the gravitational pull towards the center, and the stronger the tendency of objects on its surface to be pulled towards the center. For example, to build a supertall building on Earth, it is necessary to ensure that the building has a very solid foundation, otherwise the building will collapse due to the gravitational pull of the Earth.
If the star appears to be a cube, then the corners of the cube will be much higher than the rest of the star. As long as the mass of the star is large enough, no "foundation" has enough strength to support the weight of these corners. As a result, these anomalously raised corners will collapse under the force of gravity.
Under the gravitational pull for a long time, even solid rocks will flow like liquids, albeit very slowly. The corners of the cube star will eventually be flattened, resulting in a more uniform sphere.
However, planets are not perfect spheres. As a result of rotation, the planet's equator is raised near the equator and the poles are flattened, as is the oblate sphere of our Earth. Among the major bodies of the solar system, Jupiter is flattened in shape because it rotates the fastest, with a day on Jupiter being only an hour.
Jupiter's equatorial radius is 71,500 km, while its polar radius is 66,900 km, so Jupiter's shape appears to be a more pronounced oblate sphere.
The same is true for stars. The rotation speed of the sun is slow, and the average rotation period is about days, so the sun is almost a perfect sphere. But there are some stars that rotate extremely fast, for example, VFTS 102 in the Spider Nebula.
The star rotates 100 times faster than the Sun, so it appears as a very pronounced oblate sphere. If the VFTS 102 rotates at a higher speed, its structure will disintegrate.
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Because the bodies in the universe have a strong gravitational pull, which will attract surface objects to the center, most of them are round.
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Because in the universe all bodies have to be in a state of balance. Only a round shape can remain in such a state. Gradually, all the stars formed a circle.
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Because the pressure in the universe is very large, if the star does not become round, then it will be crushed by the pressure in an instant. As a result, many stars are round.
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In order to achieve a state of equilibrium, all the matter on the planet wants to be close to the center of the planet, and the only way is to form a sphere.
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Planets in the universe are generally referred to as stars. Stars are large and small in the cosmic world"The sun"They have very high temperatures, with surface temperatures of up to 47,000 and lows of thousands of degrees Celsius. The surface temperature of the sun is about 6000.
As for the core temperature, it's even higher. If nothing else, the temperature at the center of the Sun is about 15 million degrees Celsius. In this case, there is naturally no fixed, liquid state of matter on the star; The essence is basically a gaseous state.
The gas diffusion is the same in all directions, and the range is roughly equal, and the gas in each part is controlled by "gravitational pull". So when these forces are balanced, its appearance must be a sphere, which is one of the reasons why we see stars as round.
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What you need to see what kind of star is: Generally stars are relatively round because they are mostly composed of gas (plasma, which is something that flows like gas anyway) that shrinks into spheres under gravitational pull. The gravitational force is uniform in all directions, and the repulsive force of the nuclear reaction heat against the gravitational force is also uniform in all directions, so a ball is a balanced result.
In addition, stars have a rotation, and under the action of centrifugal force, the equator of a star is slightly protruding outward. Planets are either gas or solid, and they are generally spherical, because it is believed that they originated as hot liquids or gases, which are also spherical, and have basically maintained this shape after solidification. Asteroids, on the other hand, are extremely irregular in shape and are thought to be related to their origins.
Some believe that it is the result of the disintegration or crushing of large planets, so of course the fragments are all kinds of irregular shapes. The main reasons why stars are round are: 1. First of all, in the process of formation, celestial bodies will gather tiny particles in a spiral way, and the small ones move around the big ones, and then they are swallowed up by the large ones, which causes the celestial bodies to be mostly round 2. Secondly, after the formation of celestial bodies, their motion mode will lead to their development to a circle, the movement of celestial bodies in the air, mainly the combination of revolution and rotation, this movement, so that the non-circular part of the celestial body is thrown away, there is a theory of moon generation, that is, the moon is a part of the earth's surface bulge, and is later thrown out and formed.
3. The gravitational pull inside the celestial bodies enacts a guarantee of the stability of the circle. Any celestial body has a center of mass (center of mass), the center of mass is attractive to any part of the celestial body, gravitational force, this gravitational force is related to mass, distance, the density of each layer in the celestial body is roughly the same, so distance becomes the key, in space, the collection of points with the same distance from a point is a sphere, so the sphere can ensure the stability of the celestial body to the greatest extent. If the distance is very different, the celestial body is not stable enough, and if this imbalance is strong enough, the celestial body will be rounded by the internal motion of the celestial body.
Simply put, it's gravity.
The reason for the revolution. Because there is a gravitational pull between the stars, for example, if you pay attention, you will find that in the solar system, the closer the planet is to the sun, the faster it will revolve (in kilometers and seconds, it is: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, if it stops orbiting, then a small planet will be attracted by the gravitational pull of another large planet. >>>More
There is a vacuum in the universe, so there is no gas, and the gas will exist in the form of molecules in the universe, and it will be very thin. >>>More
The theory of relativity does not allow matter with mass to move faster than the speed of light, and if the speed of light is reached, the mass will be added to infinity, so the theory of relativity does not allow matter carrying mass and information to exceed the speed of light. In fact, faster-than-light is not impossible, as long as it does not carry mass and information, faster-than-light is allowed. The expansion of the universe, the wave function of quantum mechanics, and the tachyon do not violate the special theory of relativity.
Dark matter is an invisible substance that may exist in the universe as theoretically proposed, and it may be the main component of the matter in the universe, but it does not belong to any of the currently known substances that constitute visible celestial bodies. The suspected violations found in a large number of astronomical observations can be well explained under the assumption of the existence of dark matter. Modern astronomy has shown that dark matter may exist in galaxies, star clusters and the universe in large quantities, and its mass is much greater than the sum of the masses of all visible objects in the universe. >>>More
How do you define your strongest?
Aside from the universe, as far as the earth is concerned, the tiger is the king of all beasts, and humans will definitely not be able to fight alone. If we compare IQ and technology, then the current universe is still unknown to most of human beings, and we cannot make a summary conclusion about the unknown, but can only get a phased conclusion, so as of the beginning of 2009, the human beings located on Earth, the third planet of the solar system of the Milky Way, are currently the strongest race in the universe known to this race in the category of "science" excluding religion and so on. Are you satisfied with that? >>>More