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Anonymous users2024-02-12There is no color.
Black holes are invisible, and color does not exist. Black holes have no other characteristics other than mass, angular momentum, and electric charge. Any object, as long as it is compressed into a black hole, all the information of the object will be lost except for the above characteristics.
In this sense, black holes are colorless.
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Anonymous users2024-02-11I think black holes are black because you can't see what's inside, and I think black holes are really a very scary existence.
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Anonymous users2024-02-10It should be black, because as the name suggests, and it will also give us certain associations, and the black hole can't see anything clearly, so it should be black.
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Anonymous users2024-02-09The black hole should be black, and it is also invisible, and no one has noticed it, but it is boundless, so it should be black.
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Anonymous users2024-02-08I think it's transparent, because a black hole is an imaginary thing. If it's transparent, it's more reasonable.
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Anonymous users2024-02-07The black one is invisible, as if it were a bottomless pit.
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Anonymous users2024-02-06Traveling through that point in the universe would be a completely unsurvivable journey, where time is meaningless, even the fastest particles can't escape, and everything means you're entering a black hole.
For this trip, you have to make an assumption: you are an observer, not a living being that actually fell into a black hole, which means that gravity and energy will not have any effect on your observations. With this seemingly unrealistic assumption, let's take a look at what the inside of a black hole looks like!
At first, the journey to the black hole will be beautiful. Although it is considered pitch black, space is actually dotted with colorful distant worlds that seem to illuminate everything around you endlessly, except, of course, your destination, a pitch-black ominous sphere: the Black Hole.
This sphere can be thought of as a waterfall of light, and at the edge of the waterfall even light cannot escape, and a line of edge is clearly set off by the distorted light behind it, and this edge line is called the "event horizon". As you accelerate towards the viewport, you pass through a photon layer, where the photons reflected from you begin to orbit the black hole, and after a full rotation, they return to your eyes, meaning that you can see the back of your head right in front of you.
The further you go, the more distorted space will appear behind you, knowing that you are facing away from a window to the universe, and your speed has been accelerated to near the speed of light, but it has only just begun.
We all know that the faster you go, the slower time will go. The closer you get to the black hole, the more time dilation will affect you, and your time will pass so slowly that if you look behind you, you can see everything that will fall into the black hole from now on.
Again, in front of you, objects are subjected to greater time dilation, which means you can see everything that fell into this black hole before you, and you can even see the entire history of this point in the universe at a glance, from the big ** all the way to the distant future.
However, this phase doesn't last long, because you're gradually surrounded by vision, until the last small point of light behind you also blueshifts beyond the ultraviolet spectrum and finally disappears, and then you can't see anything anymore, and that's when things finally start to get really interesting, or life is weird.
Black holes are very massive cosmic objects. Because of its mass, it also has a great gravitational pull. Ever heard of the first cosmic velocity? >>>More
After the death of a supermassive star (supernova**), it becomes a white dwarf and further collapses into a neutron star (pulsar), and because the mass is too huge (greater than or equal to 10 solar mass m days, I can't remember if it is 10 >), the neutron star cannot resist the constraints of gravity and collapses violently again (implosion), and finally forms a black hole (black hole) that even light cannot escape!
The creation of black holes is similar to that of neutron stars; The core of the star shrinks rapidly under its own weight and becomes strong**. When all the matter in the core turns into neutrons, the contraction process immediately stops and is compressed into a dense planet. But in the case of black holes, because the mass of the star's core is so large that the contraction process goes on endlessly, the neutrons themselves are crushed into powder by the attraction of the squeezing gravity itself, leaving behind a matter of unimaginably high density. >>>More
Introduction to Black Holes] A particularly dense dark object predicted by general relativity. Massive stars collapse at the end of their evolution, and their matter is so dense that it has a closed boundary called the "event horizon", and the black hole hides a huge gravitational field that is so strong that any matter, including photons, can only enter and cannot escape. The lower limit of the mass of the nucleus of the formation of a black hole is about 3 times the mass of the sun, which, of course, is the mass of the last nucleus, not the mass of the star in the main sequence period. >>>More
Personally, I think that it is necessary to distinguish between black holes and singularities first. >>>More