EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Robert Williams Wood (1868-1955), US physicist (left), with the German-Swiss-US physicist Albert Einstein (1879-1955). Wood is best known for his work on optics, including infrared and ultraviolet photography. He used mercury to construct the first practical liquid mirror, for use in telescopes. Einstein is famous for his theories of Special and General Relativity that rewrote our concepts of gravity, space and time. His mass-energy equation foreshadowed atomic power. He received the 1921 Nobel Prize in Physics for his work on the photoelectric effect.
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