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A parallel projection is a particular case of projection in mathematics and graphical projection in technical drawing. Parallel projections can be seen as the limit of a central or perspective projection, in which the rays pass through a fixed point called the center or viewpoint, as this point is moved towards
Aside from indicating that the Nixon administration might be willing to resume full-scale bombing of North Vietnam, the operation did not achieve very impressive results. [4]: 203 The VPAF campaign aimed precisely at countering the U.S. air interdiction campaign to which the President had keyed all his hopes for success, in making North Vietnam give up the fight and negotiate and in giving ...
Orthographic projection (also orthogonal projection and analemma) [a] is a means of representing three-dimensional objects in two dimensions.Orthographic projection is a form of parallel projection in which all the projection lines are orthogonal to the projection plane, [2] resulting in every plane of the scene appearing in affine transformation on the viewing surface.
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
Stereoscopy creates the impression of three-dimensional depth from a pair of two-dimensional images. [5] Human vision, including the perception of depth, is a complex process, which only begins with the acquisition of visual information taken in through the eyes; much processing ensues within the brain, as it strives to make sense of the raw information.
Vietnam, [e] [f] officially the Socialist Republic of Viet Nam, [g] is a country at the eastern edge of mainland Southeast Asia, with an area of about 331,000 square kilometres (128,000 sq mi) and a population of over 100 million, making it the world's fifteenth-most populous country.
The North was known as the "Democratic Republic of Vietnam". Việt Nam (Vietnamese pronunciation:) was the name adopted by Emperor Gia Long in 1804. [6] It is a variation of "Nam Việt" (南 越, Southern Việt), a name used in ancient times. [6] In 1839, Emperor Minh Mạng renamed the country Đại Nam ("Great South"). [7]
Vietnam Past and Present: The North. Chiang Mai: Cognoscenti Books. ASIN B006DCCM9Q. Grauwin, Paul-Henri (1955). Doctor at Dien-Bien-Phu. London: Hutchinson. "INDO-CHINA: The Fall of Dienbienphu". Time. 17 May 1954. Morgan, Ted (2010). Valley of Death: The Tragedy at Dien Bien Phu That Led America Into the Vietnam War. New York: Random House.