Why are the bubbles blown out of the bubble machine colorful?

I think many people have played bubble blowing. Everyone should have played with such a thing in their childhood memory when they were young. This kind of thing is bubble water. Bubble water is blown out of the bubble machine, which is very beautiful in the sun. Bubbles in the sky one by one are like a lovely little Tangyuan, which is rolling with the wind. But I believe every child will find that bubbles blown out of bubbles are colorful, which are composed of seven colors: red, orange, yellow, green, green, blue and purple. But we see that bubble water is not colorful. Why? Now let me explain it to you!

So let's first understand how bubble water is prepared? Bubble water is made of glue. Water detergent. Hand sanitizer, etc. These things are composed in the ratio of 1:4 to 2:2 respectively. There are also some bubble water made by businesses, which will add a little glycerin. Adding a little glycerin will make the bubble film of the bubble more solid and have the effect of reflecting sunlight, which will make the bubble more beautiful under the sunlight, and the color of the reaction will be more bright.

So you know why glue, water, detergent, and hand sanitizer are not colored. The bubble water they combine to produce is not colored, but the bubbles they blow out are colored? This is not the case. Bubble water is originally colorless, and the bubbles blown out are also transparent and colorless. It is just that bubbles are like a reflection mirror. In the sun, they reflect the color of the sun, so colored bubbles appear.

We all know that the light of the sun is composed of seven kinds. The color we see on the bubble film is not the color of the bubble itself, but the bubble is reflected in the sun, so the color of the sun, that is, the color of light, is reflected on the bubble film, which has the appearance of colored bubbles seen from our eyes.