Medvedev Boris Abramovich RussiaSaratovSaratov State University, 410012, Russia, Saratov, Astrakhanskaya street, 83доцентbmedvedev@yandex.ru Author's articles Round Table «Man and Light in Natural and Art Treatment of the Universe» Round Table «Man and Light in Natural and Treatment of the Universe. III» Morphological Changes in the Internal Organs of Laboratory Animals under a Single Administration of Fe Nanoparticles Round Table «Man and Light in Natural and Treatment of the Universe. II» Round Table «Man and Light in Natural and Treatment of the Universe» Development of Ideas about Nature of Sight froм Leonardo da Vinci to Thomas Young