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Any matter is the embodiment of energy, light is a kind of matter (electromagnetic waves), it has energy, it has no static mass, its energy can only be achieved by motion, so it will keep moving, if it does not move, then it is not called light. It disappears because its energy is converted into other forms of energy. (Einstein's theory of relativity states that the speed of light is always constant.) )
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1 From the point of view of Marxist philosophy, motion is absolute, and rest is relative. Physics says that light is constantly moving at an observer's ultra-low velocity, and if you reach the rate of light, and it happens to be in the same direction, you will think that light is not moving!
2 The disappearance of light has two meanings, one is that the intensity decreases to the point that it is not visible to the naked eye, and the other is that it disappears due to a reaction such as photosynthesis. In the process of light propagation, reflection and refraction will occur, which will cause the light intensity to decrease, that is, the photons are dispersed, or the photon energy is transferred to the touched particles until they disappear. Whereas, the chemical reaction absorbs it directly.
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Motion is because light is made up of particles (microscopic particles). The particles are in constant thermal motion (i.e., irregular motion). So light is in motion.
The light doesn't go away. It's just because of the scattering of light that the intensity of the light is weakened. The naked eye can't pounce.
It's just not visible to the naked eye. In fact, it's just that the strength has weakened.
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First of all, I would like to state that I do not fully understand Einstein's theory of relativity.
But one of the conclusions is that light is produced by the loss of energy in the process of motion of an object. In other words, light is produced by a special type of motion of a part of an object, in other words, light is produced by motion, and light is just a phenomenon of motion, not light in motion, and if there is no motion, then there is no light.
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Because all matter is in constant motion!
Movement is absolute, and immobility (stopping) is relative. If you reach the rate of light, you will think that the light does not move!
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Ha ha. Because the earth is constantly turning, the sunlight is constantly moving.
If you take a flashlight and shine, you will not move.
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Because light has a kinetic energy, it keeps moving forward until it is subjected to an external force.
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Light is wave-particle amphoteric So the wave is the electromagnetic wave. So the problem can be understood in terms of electromagnetic waves!!
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For example, in photosynthesis, light quanta are converted into chemical energy, i.e., c-c bond energy.
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Light is a type of electromagnetic wave that has a constant grip velocity as it travels in a vacuum, i.e., the speed of light. The speed of light is about 299,792,458 meters per second, which is also the fastest speed in nature. There is a relationship between the constant speed of light and the movement of light.
The motion of light is determined by the electromagnetic wave nature of light. When light passes through a medium, it causes a change in the wavelength and speed of the light due to the interaction of the charge and the electric field in the medium. This is also the reason why light travels at different speeds in different media.
In a vacuum, the propagation speed of light is the fastest because there is no medium present in the vacuum, there is no interaction between the charge and the electric field. Therefore, the velocity of light propagating in a vacuum is fixed, and the direction of light propagation is determined by the wave bond of light. When light encounters a medium, the direction of light propagation changes, a phenomenon known as refraction.
The direction of propagation of light rays is refracted and this is one of the reasons why the direction of movement of light changes.
In conclusion, the motion of light is determined by the electromagnetic wave nature of light, the velocity is fixed when it travels in a vacuum, whereas when it travels in a medium, the speed and direction of light changes.
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Light is made up of particles, and the particles are not moving in the middle of the day, and the movement of light is due to the perception formed by the brain after being received by the retina of the human eye during propagation.
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Light moves, the motion is stationary and relative, the same as light.
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The essence of visible light is an electromagnetic wave of 400-700 nanometers, light has wave-particle duality, and when traveling in a vacuum or transparent matter, it presents a particle state, traveling in a straight line like a moving particle; Refraction occurs when transparent substances of different refractive indices are entered, but they all travel in a straight line.
However, when encountering a narrow slit or the edge of an opaque substance, the light will show waves, interference and diffraction phenomena will occur, and the light will not travel in a straight line, but bypass the opaque material and reach a position that cannot be reached by a straight line.
If you are interested, you can learn about the double-slit test of light and Poisson bright spots.
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The speed of light is constant in any frame of reference, so it is not feasible to consider the way of relative motion;
That is, as long as light still exists in the form of photons, he will not stop;
Let's consider photon annihilation in generation. For example, in the generation of a laser, photons first excite atomic transitions, and then the atoms emit photons. From a certain point of view, this process is an example of light stopping and moving again.
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Turn the light switch on and off.
Very mentally retarded
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