QS China Factory Wholesale High Quality Outdoor Play Bubble Toy 35 ML 2 Color Bubble Stick Kids Baby Toy
Product description
It is an interference phenomenon of light. When light passes through the film of soap bubbles, the top and bottom of the film will reflect. The soap film can contain about 150 different layers at most. The messy color combination we see is caused by the unbalanced film layer. The thickest film layer reflects red light, the thinnest reflects purple light, and the middle reflects seven-color light.
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