@liquid_tapestry on Instagram: "Black Magic --- Thin-film interference is a colorful optical phenomenon where light waves reflecting off the top and bottom surfaces of a thin layer (like oil on water or a soap bubble) interfere, creating bright or dark patterns by constructively or destructively combining at different wavelengths. This interference depends on the film's thickness, the light's wavelength, and phase shifts upon reflection, causing certain colors to appear enhanced or canceled out,