Two Slit Interference and Young's Double-Slit Experiment - M28-18

Learn about the fascinating double-slit experiment in this 12-minute physics lecture that explores Thomas Young's groundbreaking 1803 demonstration to the Royal Society. Discover how adding a second slit to a light diffraction setup creates an unexpected interference pattern where additional light actually results in dark areas on the screen. Explore the fundamental implications of this experiment in establishing the wave theory of light and its later significance in quantum mechanics, where single photons mysteriously interfere with themselves by passing through both slits simultaneously.