When you look at something outside on a hot day, why does it look like there is transparent smoke sh

Because the surface air heat** is mainly the ground, and the farther away from the ground, the weaker the surface heating effect, so the air near the surface is less dense, and the air far from the surface is denser. Due to the uneven density of the air, the reflected light of the object is refracted in the process of entering the human eye, and the air is not completely static, so that this refraction is not shot into the human eye at a fixed angle, coupled with the effect of surface water vapor, so the phenomenon of smoke shaking around the object is seen.

In summer, due to the exposure of the sun, the temperature of the ground is very high, which will make the air close to the ground rise, you can fill a transparent glass container with cool water, drop a few drops of ink, and put it on the fire, it will have the same effect.

So how can you see it rising up? This is because the density of the air becomes uneven due to heating, and light refracts as it passes through a medium of different densities, so it looks as if there is a transparent smoke shaking.

Surface Houses Trees first absorb heat from the sun and then radiate into the atmosphere, and the atmospheric temperature of trees near the surface houses first rises, the density decreases, and the light travels in an uneven medium.

Air is a poor conductor of heat, and the density of the air is uneven due to uneven heat, and this phenomenon occurs due to the refraction of light!

The density of hot and cold air is uneven, and light is refracted when passing through media of different densities, so this phenomenon occurs!

This occurs due to high temperatures, when water vapor evaporates into the air, causing light to refract.

In the hot summer, due to the small specific heat capacity of the sand and gravel, under the irradiation of the sun, the internal heat temperature rises rapidly, which naturally increases the temperature of the air near the ground and decreases the density, making it less than the density of the upper air. Then the refractive index of the air is less than the upper air near the ground, and the light from the sky to the ground cannot travel through the air in a straight line, but continues to bend, and the refractive angle is greater than the angle of incidence, and the total reflection near the ground may occur, and after a series of refractions, it enters the human eye, and the eye sees the blue sky like a blue sky, just like a blue lake in front.

<> due to the constant change in the density of the air, the air is also constantly turbulent, and the direction of light travel is also constantly changing, and it is like the undulations of nature, like rippling blue waves. It can be seen that the most desired thing for the walkers in the desert is water, and when they see such a scene, they will naturally be ecstatic, and everyone thinks that it is empty and happy. Let's take a look at a phenomenon that is often seen in daily life - the refraction of light.

Sink the coin to the bottom of the cup, and when we look from the water, we can always see that the coin is higher than its actual position.

The fish we see below the surface of the water are always higher than they actually are. Placing the pencil in a glass of water, we can see the pencil cocking on the water. These phenomena are related to the refraction of light, which occurs when light passes through a medium of different densities.

In summer, because the road surface temperature is warmer than the air temperature. So the air closer to the surface is warmer and less dense. In other words, the air on the surface is less dense than the surrounding air, resulting in a density difference, so the refraction of light occurs.

It allows us to see the water flowing in the far reaches of the road.

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This happens because the temperature in the summer is very high, and the temperature of the land is also high, and it is also a phenomenon of evaporation.

It's just light. Because of the uneven density of hot and cold air, coupled with the refraction of sunlight, we can see this substance.