Labels:bar | barrel | bottle | car | clock | crystal | door | person | plate | sky OCR: Interference makes an some of the most beautiful colours and patterns in the world. A pigmented surface always looks the same but the wings of butterfly or e film of oil floating on water can look different The colours change depending on the angle of. the object or observer. This occurs because 'iridescent colours are produced by the shape of separate surfaces that are a tiny distance apart. The surfaces reflect. light in special way. making the light rays interfere with each other
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