photographic glass
61Collodion process — An old deteriorated wet plate featuring Theodore Roosevelt The collodion process is an early photographic process. It was introduced in the 1850s and by the end of that decade it had almost entirely replaced the first practical photographic… …
62Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra …
63microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …
64Enlarger — An enlarger is a specialised transparency projector used to produce photographic prints from film or glass negatives using the gelatin silver process, or transparencies. All enlargers consist of a light source normally an incandescent light bulb …
65Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
66Sergey Prokudin-Gorsky — Sergey Prokudin Gorsky. Self portrait on the Korolistskali River, 1912 Born August 30, 1863(1863 08 30) Funikovs Gora, Russian Empire …
67Filter (optics) — Coloured and Neutral Density filters Optical filters are devices which selectively transmit light of different wavelengths, usually implemented as plane glass or plastic devices in the optical path which are either dyed in the mass or have… …
68Josef Jindřich Šechtl — (May 9, 1877 Tábor ndash; February 24, 1954 Tábor) was a Czech photographer who specialized in photojournalism and portrait photography. On the death of his father, photographer Ignác Šechtl, Josef inherited the photographic studios of Šechtl… …
69Arthur Melbourne-Cooper — (1874 1961) was a British film maker who witnessed the birth of the movies as an assistant/cameraman of Birt Acres (1854 1918) who, in 1895, developed the first British 35 mm moving picture camera.Cooper, for the next 20 years, pioneered in… …
70James Ambrose Cutting — (1814 1867) was a 19th century American photographer and the inventor of the Ambrotype photographic process. He grew up in poverty on a farm in Havershill, NH. At age 28, he invented a new type of beehive in 1842, and on the money from selling… …
