Experimental principle of rainbow bubble dragon

The experimental principle of rainbow bubble dragon is introduced in detail as follows:

A, the role of surface tension:

Surface tension is a phenomenon caused by the interaction between liquid molecules. In the rainbow bubble dragon experiment, the solution used is usually water containing detergent or soap. The detergent or soap molecules form a thin and tough film-like structure in water, which makes the liquid surface have a certain tension, that is, surface tension.

Second, the formation of bubbles:

When air is blown into the solution with a blowing stick or other tools, the detergent or soap molecules on the surface of the solution are surrounded by air, forming a film-like structure. Due to the surface tension, this film can bear a certain pressure, so it can form stable bubbles.

Third, the generation of color bubbles:

In order to make bubbles appear rainbow color, some colored dyes or pigments are often added to the solution. When bubbles are formed, these colored dyes or pigments will be adsorbed on the bubble film to form a colored film. Due to the different thickness of the film, interference and diffraction of light occur, resulting in rainbow color.

Four, light interference and diffraction phenomenon:

The color effect in rainbow bubble dragon experiment is caused by the interference and diffraction of light. When light passes through the bubble film, it is reflected, refracted and transmitted many times, resulting in multiple interference and diffraction effects. According to the principle of light interference and diffraction, light with different wavelengths interferes and diffracts with each other on the bubble film, resulting in light waves with different colors.

Five, the formation of rainbow color:

Due to the interference and diffraction of light with different wavelengths on the bubble film, the bubble surface presents rainbow-like color. According to the principle of light interference and diffraction, thin films with different thicknesses will produce light waves of different colors, and finally form the effect of rainbow color.

Six, the factors affecting the color of the rainbow:

In the rainbow bubble dragon experiment, there are many factors that affect the rainbow color effect. These include the thickness of bubbles, the concentration of colored dyes or pigments in the solution, the incident angle of light and so on. These factors will lead to the change of light interference and diffraction effect, and then affect the presentation of rainbow color.