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Anonymous users2024-02-06The universe is also finite, but it has no boundaries. The universe is a "finite and unbounded" multi-dimensional space-time combinatorial space. Just like walking on the ground, you can never walk the boundary (the ground is a two-dimensional space).
Because any celestial body has centrifugal force. Unless you go in the direction of the coordinates of the 3-dimensional space, which is the sky, and escape from the ground, you will find that the earth is not an infinite space.
The universe is the same, we live in a 3-dimensional space, and the universe as a whole belongs to the 4-dimensional space-time of 3-dimensional space and 1-dimensional time, and it is difficult for our creatures in 3-dimensional space to understand the time and space higher than us, just like a dog living in the 2-dimensional space on the earth, and cannot understand that the human beings on the earth and the birds in the sky living in the 3-dimensional space cannot escape the 2-dimensional ground, just like the human beings in the 3-dimensional space cannot escape the universe of 4-dimensional space-time.
So far, people say that the universe range is 15 billion to 20 billion light years, which is inferred by human beings based on the cosmic microwave background radiation after the universe, but no one knows what the universe looked like before the big **, and no one knows the time before the birth of the universe.
It is possible for the universe to connect to another world or to another universe, because it is not necessarily the universe that gave birth to us. If there is a passage connecting another universe, it is most likely to be a black hole in 9 dimensions, the gravitational force in the black hole is much greater than the speed of light, and all matter will be sucked in by the black hole and will not come out, as for the other side of the black hole, no one knows. The direction of one-way travel, beyond the speed of light, is nothing better in the universe than a black hole as a space-time tunnel.
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Anonymous users2024-02-05It's not endless.
But no one knows what's outside the universe.
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Anonymous users2024-02-04At present, humanity has not seen the boundaries of the universe.
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Anonymous users2024-02-03The question of whether the universe is infinity or not has not yet been answered definitively. Judging from what we know so far, the universe is very large, far beyond the scope of our imagination, but we are not yet sure whether the universe is infinite.
According to astronomers' observations and calculations, the universe is constantly expanding, and different parts of the universe may expand at different rates. This makes it difficult to determine the exact size and extent of the universe.
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Anonymous users2024-02-02Yes, the universe is infinite. Scientists have discovered that the universe is home to clusters of galaxies billions of light-years small, which are distributed over larger and greater distances. Therefore, the universe is extremely vast and infinite.
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Anonymous users2024-02-01Judging from the currently known samples of the universe, the universe seems to be closed and unbounded, and the sedan wheel is infinite. When we try to understand its boundaries, there are always new "slices" of the universe that appear due to the curvature of space, which makes the universe seem infinite.
I guess the world includes the universe. Because the world includes the spiritual world and the material world, and the universe we speak of generally refers to the material world, the universe should be in the world.
The vast majority of the stars we see are stars.
The diameters of different stars have been found in various ways, ranging from a few kilometers to more than 10 kilometers. The size of the stars also varies greatly, some are giants and some are dwarfs. The diameter of the Earth is about 13,000 kilometers, and the diameter of the Sun is 109 times that of the Earth. >>>More
Lack of nutrients, although instant noodles contain fat, protein, fiber, carbohydrates, etc., but after all, there are very few, and this will damage brain activity in the long run. It is easy to cause fire, because many instant noodles are fried in oil, which is relatively easy to catch fire. It can easily lead to gastrointestinal dysfunction, flatulence, stomach pain and other symptoms. >>>More
Rice in the south is not as delicious as in the north.
Southern rice is generally evenly grained, but it does not have that kind of taste. Northern rice has a distinct taste and color, and is very popular. >>>More
Formaldehyde deodorant can effectively remove chemical and biological pollution from indoor and outdoor, such as car exhaust, decoration, furniture, wallpaper, chemical fiber carpet, toys, gas water heaters, insecticidal sprays, detergents, perfumes, cosmetics, smoking, kitchen fumes and other organic volatiles (TVOC), parasitic on furniture, daily necessities, various microorganisms and bacteria in the bathroom, to achieve the effect of sterilization, odor removal and freshness. When spraying, be careful about spraying paint that has not dried thoroughly on furniture, etc. After spraying, clean the ground in time.