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Incredible Inventions All About LightStock informationGeneral Fields
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DescriptionAll About Light - From Lenses to Lazers: covers inventions for communicating, viewing and imaging - from ancient lighthouses lit by flames; through the first lenses for spectacles, microscopes and telescopes, and the development of the camera and movie projector; to X-rays, scanners and ultrasound, and sonar, radar and lasers. |