David Brewster

David Brewster was a 19th-century Scottish scientist known for his work in optics and vision. He is best recognized for discovering the Brewster angle, a specific angle at which light reflected from a surface becomes perfectly polarized. This discovery advanced understanding in fields like photography, microscopy, and polarization of light. Brewster also improved the kaleidoscope and contributed to the development of the stereoscope, enhancing 3D viewing. His work helped illuminate how light interacts with materials and contributed significantly to optical science.