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It is a virtual image formed by the refraction of light.
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Inversions occur when the surface temperature is high, such as on deserts and asphalt roads. At this time, because of the high surface temperature, the density of the air near the surface is small, and the density of the upper layer is high, and the direction of light is completely reflexive in the air from low to high. The image is upside down.
Positive images occur when the surface temperature is low, such as at the surface of the sea. At this time, because of the low surface temperature, the air near the surface is dense, and the upper layer is dense, and the direction of light is reflexive from high to low in the air. The image is upright.
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The scene inside the mirage is real, and the principle of the mirage is to project the scene of one place onto the virtual image of another place through the repeated refraction of light. The appearance of mirages is closely related to the weather and environment, and the connection is very close. Temperature is an important factor in the formation of mirages, and abnormal temperature will lead to the appearance of mirages.
Mirages don't have to be found in the desert, they can happen in cities. The mirage is also a real object in life, the light has traveled a relatively long distance in the atmosphere, in this process, the light has been constantly refracted and reflected, at this time the light will be distorted, and the shape of the tomb has become a virtual image, which is usually called a mirage.
Due to the different densities, light rays are refracted at the temperature gradient demarcation. The brain thinks that light always travels in a straight line, but when light rays pass through the cool, dense atmosphere below, they are refracted downward, so distant objects appear higher in the brain than they actually are.
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The mirage is indeed an optical phenomenon that can be found in reality, but this explanation has always remained theoretical, and no scientist can artificially create a mirage through this theory and reflect the physical object in the sky.
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A mirage is an optical illusion, which is the phenomenon of refraction and reflection of light. The mirage is the reflection of the distant building or landscape, the reason is that when the sun hits the surface, the ground temperature rises, and its density becomes smaller, and the temperature above the ground is relatively low, the density is larger, when the light rays from the dense gas layer into the low density gas layer, its angle deviates, people can see the distant landscape according to the light, that is, the mirage. According to the angle of refraction of light, it can be divided into upper mirage, lower mirage and lateral mirage.
The phenomenon of mirages often occurs in areas with large temperature differences or gas densities, so it also frequently occurs on the surface of the sea and in deserts.
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Of course, it is refracted by light, and there must be a physical object before it can refract a mirage.
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In a specific environment, there are more seashores.
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A mirage is a true embodiment of another space. Under the movement of matter, it is reflected in our space. A type of mirage occurs at sea.
The air humidity here is large, and the air humidity in the space within a certain range is relatively large, and the thickness is relatively large, so that a large area of water vapor can form a huge lens system by mistake under the movement. It's like a giant magnifying glass and microscope, reflecting the scene of another dimension of the microscopic world into our space. The human eye can see it.
In addition, the mirage that people see is sometimes in motion, and the matter of the space is in motion. In the desert or elsewhere, if matter can form a huge microscopic observation system under motion, people can observe another space, which is called a mirage.
In addition, mirages often occur after rain, when the air humidity is high and it is easy to form a lens system.
In places such as calm seas, rivers, lakes, snowfields, deserts or the Gobi, there are occasionally hallucinatory scenes such as tall buildings, city outlines, and trees in the air or "underground", which is called mirage, also known as "mirage". The ancients attributed the mirage of the genus of the dragon to exhale into the outline of the tower, hence the name.