Nonsense of "natural state
Zhenping County in Shaanxi province recently as "Tiger," according to storm hit the world know.
According to various media mission to local press reports, in the County stands a huge advertising signs, petitioned the State of nature "tour, smell the South China Tiger roaring Pinter, Zhenping bacon" three big characters. There is increasing evidence that Zhenping is not hear "South China Tiger roaring", and "natural" State of mind, it is a nonsense.Acrobat can be used a thin stick decorated with a large, rapidly rotating errenzhuan actor can skilled use rapid rotation handkerchief fingertips ...
These are people "an object always has a Center" impression. This Center is the central focus of the objects (more accurately, Center of mass). Junior high school geometry textbook has taught the exact out simple geometry (triangle) in the center of gravity. So some people see the shape of complex contours, China will inevitably be naturally feel that it should have a "Center".However, in China's outline shapes are not simple.
Our impression of "Rooster", only the outline of our land, if only it was this find the heart of the "natural state", that will inevitably give "coastal defenses not important" illusion; and if the pearls are also taken into consideration, the heart of China's "natural state" location is greatly offset arise. Therefore, under the current release of hastily map boundaries set out a "natural" State of mind, inevitably as State Bureau of surveying and mapping, Deputy Director Wang Chun Feng said, "the political impact of any adverse."Moreover, approximate spherical surface of the Earth, so China's natural contours and not on a plane.
But in China map, you must send this profile in a plane, this requires appropriate to the geographic coordinates of a mathematical transform, the term referred to as "projection". In the mapping of common projection transform least dozen, a given plane shape the contours of China are not identical, for example in China full diagram of the most commonly used double standard Parallels Conic projection and Mercator projection from the China outline, there is a significant difference. Ask us how to decide what projection is the most "authority"?Do not take into account any situation via projection transform, the direct use of the "place" for China's outline of stereo "natural" State of mind may be able to solve this problem.
But this new problem: China's terrain and rugged, high and low relief, this time we do not only to determine the scope of the plane in China, have established China's "stereo". This will also have a variety of options, for example, the geoid (approximately equal to the mean sea-level) for the stereo range, or to lower bounds for the Earth's crust, or in the asthenosphere upper bound for the lower bound, or would simply like to cut the cake, China is on the corner of the Earth's Center of gravity for the determination of the entire cut, ... Not to mention no matter which method to choose, can draw their own "natural" State of mind. These stereo scope to the current level of science and technology, never precisely defined!Put aside all of this is that the "natural state of mind" in geography is no practical value, so decent geographers have never explored "' natural state of mind ' criteria to determine the issue of" boring, this also caused civil for the "natural state of the heart" where endlessly have said in Gansu, Shaanxi has said.
On this, let us remember the words of the Deputy Secretary Wang Chun Feng:Without the mapping of the State administrative departments review and final approval by the State Council, and no unit or individual may publish Chinese geographical center data and establish the appropriate s
tructures and flags.□ Liu repute (Beijing science writer)
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