Tyndall effect means that when light passes through tiny particles in the air, the particles will scatter the light and form a blue halo. This phenomenon is common in the early morning and evening, giving people a feeling of peace and dreaminess.
At the same time, the Tindal effect also has romantic implication, which is considered as the combination of light and love. Therefore, the Tindal effect in the circle of friends may also represent the yearning for a better love and life, hoping that there will be more romantic and warm times in life. Generally speaking, this is a feeling and sharing of a better life.
This phenomenon usually occurs in the early morning, at sunset or after rain when there are more clouds and fog or dust in the atmosphere. The sun shines right on it, divided into strips, and sometimes it becomes a large piece, which is particularly spectacular.
Effect introduction
British physicists john tyndall (1820 ~ 1893) and 1869 first discovered and studied the above phenomena in colloid. This bright "path" is formed by the scattering of light by colloidal particles. Tindal effect is a common physical method to distinguish colloid from solution.
Tindal effect is a phenomenon of light scattering or milky light. Because the diameter of true solution particles is generally less than 1nm, colloidal particles are between solute particles and suspension particles in the solution, and their diameter ranges from 1 ~ 100nm. It is less than the wavelength of visible light (400 nm ~ 700 nm), so when visible light passes through colloid, it will have obvious scattering effect.
For real solution, although the molecules or ions are small, the intensity of scattered light decreases obviously with the decrease of the volume of scattered particles, so the scattering effect of real solution on light is very weak. In addition, the intensity of scattered light also increases with the increase of particle concentration in the dispersion system.
The above contents refer to Baidu Encyclopedia -Tindal effect.