Perrin's experiment

Perrin's experiment, conducted by physicist Jean Perrin in the early 1900s, aimed to provide evidence for the existence of atoms. He observed tiny particles, suspended in a liquid, under a microscope. When light passed through, these particles moved in a random, zigzag pattern due to collisions with the surrounding molecules, a phenomenon known as Brownian motion. By analyzing this motion mathematically, Perrin confirmed that the behavior of these particles was consistent with the kinetic theory of matter, supporting the atomic theory. His work provided significant evidence for the existence of atoms and won him the Nobel Prize in 1926.