Siberia, Siberia conclusion, the book consists of several chapters which are dedicated to particular regions: Tobolsk, the old capital of Russian Siberia; Lake Baikal; Irkutsk, the city on the Angara which the author has long made his made home; Altai; Kyakhta, the 18-19th century entrepôt for China tea trade; and the isolated Arctic community of Russkoye Ustye with its archaic customs and dialect. Later Russian editions had additional chapters added. As usual in Rasputin's writing, his greatest ire is reserved for the masterminds of the river damming and water export schemes, such as the Siberian river reversal project, which was shelved (not
Evolution of the eye narrow range of wavelengths on the electromagnetic spectrum—the visible spectrum—is because the earliest species to develop photosensitivity were aquatic, and only two specific wavelength ranges of electromagnetic radiation, blue and green visible light, can travel through water. This same light-filtering property of water also influenced the photosensitivity of plants. In a lensless eye, the light emanating from a distant point hits the back of the eye with about the same size as the eye's aperture. With the addition of a lens this incoming light is concentrated on a smaller surface area, without reducing the overall intensity of the stimulus. The