"Tindal Phenomenon" appeared in Jintian Village, Shuangfeng County, Hunan Province. How did this phenomenon come about?

On the afternoon of September 2, a wonderful scene appeared in Jintian Village, Shuangfeng County, Hunan Province. The sunlight in the sky passes through the thick clouds, spraying a thousand rays. This scene was recorded by local people. According to experts, this is a kind of? Tingdahl phenomenon? . So how did this phenomenon come about? It turns out that in the process of light propagation, if the light shines on the particles, if the particles are smaller than the wavelength of the incident light, the light will be scattered and form a radial appearance. Let's take a look at the details with me.

First, the Tingdahl phenomenon introduced the Tingdahl phenomenon by the British scientist John? Dindar discovered that when a beam of light passes through a colloidal medium, it produces light? Channel? It is found that this is formed by light scattering colloidal particles. Generally, when particles are smaller than the wavelength of incident light, scattering will occur, and this phenomenon will form a radiation scene.

This phenomenon is used as a method to distinguish colloid from solution. Generally, the radius of particles in solution will not exceed 1nm, while the radius of colloidal particles is generally between 1 and 100 nm, while the wavelength of visible light is between 400 nm and 700 nm, so when light passes through visible light, there will be obvious scattering effect, while when light passes through solution, the scattering phenomenon is not obvious because the particles in solution are too small.

Second, the conditions for the occurrence of Tindal phenomenon in nature are very common in nature, generally occurring in the morning, evening and when there are many clouds after rain. When there is fog or dust in the atmosphere, the sun just shines on it, so that the light will be divided into strips and form a radiant appearance. I think this phenomenon is very common, so there is no need to make a fuss.

After reading so much, do you think this phenomenon is wonderful? Remember to comment in the comments section.