Rainbow in a Bubble
Light hitting a soap film creates magical rainbow stripes—nature’s artwork in the tiniest place. When illuminated by a flashlight, the soap film’s varying thickness creates vivid, multi-colored interference fringes ranging from violet and green to yellow and white. These colors arise from constructive and destructive interference of reflected light waves at the air–film boundaries.
—Achini Mala Sri Ovitigala, Mississippi State University, Starkville, MI, USA
