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The light in the universe lets us know day and night, and lets us know when the sun rises and when it sets, thus affecting people's daily life.
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The universe is a very large environment, and the light in the universe brings us sound, as well as the knowledge of optics, and brings us a lot of information about physics.
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Light in the universe is also a way of energy transfer. Light is also a type of heat that provides light and heat to human beings. Solar energy, which has been studied by humans, has made a great contribution to the development of mankind.
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Through the absorption of the spectrum, the main material components of the nebula in the universe can be obtained, the existence state and material composition of the corresponding celestial bodies can be known through the high-energy particle beam, and the electromagnetic waves can be calculated through visible light.
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The light in the universe can also be used by some scientists to calculate how big the universe is, and they use the speed of light to calculate, this distance, so that we understand that the universe is huge.
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The light in the universe brings us a lot of information, which is information about the whole universe, and we can know through these lights when the universe was born, what happened to the universe, and which planet was born.
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Today's optics is based on the study of light in the universe, which has brought great contributions to the development of human civilization, such as the application of electromagnetic waves and the use of light in our daily life to take pictures, which make us more and more inseparable from light.
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Knowing the distance between the Earth and other planets, and how the universe is developing, is just as good for astronomers as it is for astronomers, and things are good for astronomy research.
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According to the Bible, the universe was originally chaotic, and God said there would be light, and so there was light. And the light in the universe gives us a clearer understanding of the universe.
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Of course, there is light in the universe, because there are many other luminous stars in the universe, so they will also produce some light. Because many stars can emit light continuously, whether it is visible light.
Or ultraviolet light.
Light, infrared.
light, and even some cosmic rays.
These are all that can shine. Light is a very amazing scientific phenomenon, we swim in the ocean of photons every day, and light surrounds us all the time. Even in very dark nights, we are still shrouded in a lot of invisible light such as wireless light waves, infrared rays, etc., and even we ourselves emit some shimmering light.
The photon is the smallest unit of light, according to our traditional concept, this smallest unit of energy is independent of each other, they are born with no way to communicate with each other, so they do not know each other's existence, this is a law in the universe. So it's almost impossible for a photon to go upwards. But there are always exceptions, and even photons have some accidents.
Because a lot of romantic things happen because of accidents. <>
Recently, many physicists have seen a very rare scene, photons collide. This is a very important invention in the experiment, scientists.
Find a way to make lead atoms pass by at close to the speed of light, and at this time, an electromagnetic reaction occurs between the lead atoms, exchanging a large number of photons with each other. At this time, a very rare photon collision occurred, and although the probability of this amount of occurrence is very small, it was finally observed by scientists. <
This phenomenon is called a virtual photon, but the lifespan of a virtual photon is very short, maybe the moment you blink, the electron and positron.
It is annihilating each other, so this phenomenon is very difficult to see, but this does not mean that the light in the universe is also very difficult to see, because there are many luminous stars in the universe, so the light can also be seen in the universe, but the universe itself does not shine. Because the universe is essentially a carrier of a planet, it is those stars and some light matter that emit light, not the universe itself.
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There are many light sources in the universe, and there are many galaxies that can emit light, so there is a phenomenon of light.
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There must be a phenomenon of light, and there are many things in the universe that we don't know and need to spend a lot of time exploring.
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Absolutely. Light can exist in any medium, so there is a phenomenon of light in the universe.
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Yes, there is a phenomenon of light. The universe is very large, so I feel that there must be such a phenomenon.
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Light can only travel short distances in the universe, not all the time.
In the process of propagating in the universe, light can be reflected, absorbed or dispersed, and when all the energy of light is converted into other forms of energy, light disappears.
Reflection of light. If it could go on forever, the universe should be full of light, and the universe should be transparent and very bright, because the universe has a large number of luminous stars. Actually, the universe is not like this.
Absorption and reflection of light.
When light is absorbed by cosmic celestial bodies or dust, it is converted into internal energy. After being reflected or scattered, it is eventually absorbed by celestial bodies or dust in the universe. If the absorption is slow, the propagation distance is long, and the dust is more, the absorption is fast, and the propagation distance is short.
Reflection of light. In addition, there are gravitational waves in the universe, and gravitational waves make it impossible for light rays to travel in a straight line, and it is difficult to escape the gravitational pull of celestial bodies or galaxies.
In conclusion, the distance that light travels is limited. It can't go on forever.
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Be! As long as there is no energy loss, it will continue to propagate in the universe, but in fact, the loss of energy is impossible to ignore, and the obstruction of celestial bodies, interstellar dust, and black holes can weaken the energy of light. But if we extrapolate backwards and discover a blue supergiant 9.3 billion light-years away from Earth in 2018, and Taiyu Kuyang is just an ordinary star in the universe, then it is not an exaggeration to say that the light emitted by the sun travels 7 billion light-years.
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Light can't travel forever, and sunlight can travel about 19 billion kilometers. The stars we see are not the light of the stars that spreads back into our eyes, but the stars that block our eyes, so we can see the stars. For example, during the day, the sunlight produced by the hunger of the mountains and rocks in the atmosphere blocks the stars, so the dates are big and the stars are not visible during the day.
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OK. As long as there are no obstructions in the path of light, light can travel forever in the universe.
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Eventually, this light will bend and bend again under the gravitational pull of the universe, and travel all the way through the universe.
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Summary. The reason why we can see the light from the depths of the universe is because of the superposition of brightness caused by the temporary nature of vision.
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The reason why we can see the light from the depths of the universe is because of the superposition of brightness caused by the temporary nature of vision.
All the stars or planets of the solar system that we can see are moving at different speeds, so that our vision is temporary, and what we see is not the light emitted by the star fixed in one position, but the width is the diameter of the star, and the length is the diameter of the star plus the distance that the star moves during the visual persistence.
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The origin of the universe is the synthesis of the creative activity and dynamic force of the conscious mind.
The origin of the universe, that is, the origin of the universe, the scientific community basically agrees that the original universe began with a large "singularity" with extremely high density and temperature, and a very small volume, and the expansion of the universe is the continuation of the large singularity of the universe. The universe has different states of equilibrium at different times.
We know that the essence of light is the smallest indivisible particle in the universe – quanta, to be excipirate. The strange properties of photons are simply due to the fact that the mass and radius of the photons are much smaller than those of the elementary particles (electrons or protons) that are closed systems.
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Graviton-related information.
With the help of scientific instruments, we observed the composition of the microscopic world and found that everything is made of particles. The body, as well as the air, are made up of particles like quarks, sunlight is photons, and the normal functioning of mobile phones is based on the flow of electrons. Scientists have detected particles of light, and confirmed the fact that many forces are made up of particles, but there is still a problem in front of us today, no experiments have detected the components of gravitational particles.
Where energy exists, there are particles. Photons are like light energy transport packets without mass. Therefore, most scientists believe in the theory that gravity originated from elementary particles.
The reason why gravitational particles of origin have not been detected is that the "graviton" does not have a mass that actually exists, and the interaction between the graviton and the known particle is too weak. In order to find the presence of gravitons, the researchers suggest that signs of gravitons can be searched in the area of gravitational events, and that when two black holes merge, there are gravitational effects nearby, which may accumulate a very large number of gravitons, so observing the merger of two black holes may make it easier to confirm the possibility of gravitons. <>
Research on massless particles has shown that when massless particles exist, they change their state, which is also a quantum breakage phenomenon. In rare cases, photons can be converted into gravitons. Conversely, gravitons can also be converted into photons.
Recently, a report published by a relevant scientific newspaper believes that previous studies have underestimated the number of photons produced by gravitons, and the ability of photons produced by extreme gravitational events is many times higher than estimated. Sawyer's study of quantum fragmentation in gravitons showed that when the "concentration" of gravitons reaches a certain point, a critical value is reached, and gravitons are converted into photons. Like before the storm, it never came without a trace, and then it exploded in an instant.
The light produced by the merger of black holes may produce photons, but the energy is not high, and the wavelength is about a kilometer. The signal is weak, and relevant information may be received on Earth. Interfering signals must be eliminated in order to tease out the electromagnetic wave signals generated by the merger of black holes.
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The universe has had light since its inception, and the universe refers to matter and space-time in general.
The dominant view in modern cosmology is that the universe originated.
It originated from a large **, evolved from a state of extremely dense and extremely high temperature in the past, and reached a state through continuous expansion, this view is called the cosmic large**.
Theory or Singularity Big ** Theory.
The light emitted by the big ** is still spreading outward. The resulting gases and clouds, dancing, spinning, and aggregating into embryonic galaxies.
The universe was formed by a great ** that occurred about 14 billion years ago, and the great ** universe is one of the most influential theories in modern cosmology. Its main point is that the universe has had a history of evolution from hot to cold. During this period, the cosmic system was constantly expanding, making the density of matter evolve from dense to thin, as if it were a huge scale.
At first, there was no space, time, unknown reasons, space began to skyrocket, vibration made matter born, this time the reaction principle of the big ** is called quantum physics by physicists.
The large matching plexus** caused the space to expand, the space of the universe continued to expand, and the temperature also dropped accordingly, and later all the galaxies, stars, planets and even life in the universe appeared one after another.
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Light has appeared since the beginning of the universe, and it has been more than 40 billion years now.
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Since when did Yu Rotten Qin Chunzhou start to appear in the light of the first pei? Hunger.
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