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History of optics. Modern ophthalmic lens making machine. Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term ...
Coming Up for Air. Coming Up for Air is the seventh book and fourth novel by English writer George Orwell, published in June 1939 by Victor Gollancz. It was written between 1938 and 1939 while Orwell spent time recuperating from illness in French Morocco, mainly in Marrakesh. He delivered the completed manuscript to Victor Gollancz upon his ...
Why Orwell Matters, released in the UK as Orwell's Victory, is a book-length biographical essay by Christopher Hitchens.In it, the author relates George Orwell's thoughts on and actions in relation to: The British Empire, the Left, the Right, the United States of America, English conventions, feminism, and his controversial list for the British Foreign Office.
George Orwell. Eric Arthur Blair (25 June 1903 – 21 January 1950) was a British novelist, poet, essayist, journalist, and critic who wrote under the pen name of George Orwell, a name inspired by his favourite place, the River Orwell. [2]
What George Orwell got right in '1984'. There may be no one who can say "I told you so" better than George Orwell, who was born today, June 25th in 1903. In Orwell's novel "1984" — which was ...
Prism (optics) A familiar dispersive prism. An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base ...
Optical glass refers to a quality of glass suitable for the manufacture of optical systems such as optical lenses, prisms or mirrors.Unlike window glass or crystal, whose formula is adapted to the desired aesthetic effect, optical glass contains additives designed to modify certain optical or mechanical properties of the glass: refractive index, dispersion, transmittance, thermal expansion and ...
Inside the Whale. " Inside the Whale " is an essay in three parts written by George Orwell in 1940. It is primarily a review of Tropic of Cancer by Henry Miller with Orwell discoursing more widely over English literature in the 1920s and 1930s. The biblical story of Jonah and the whale is used as a metaphor for accepting experience without ...