Perrin-Morley experiment

The Perrin-Morley experiment confirmed the existence of atoms and molecules by measuring how tiny particles, like electrons, behave in a liquid. They observed that charged particles moved under an electric field, creating a pattern matching the predicted number of molecules in a given volume. This provided strong evidence for the atomic theory, showing matter is made up of discrete particles rather than continuous fluid. The experiment also helped determine fundamental constants and improved our understanding of atomic structure, supporting the development of modern physics and chemistry.