人类航天航空的科技原理现状与对UFO的原理猜想人类航天航空的科技原理现状与对UFO的原理猜想.pdf

Journal of Aerospace Science and Technology 国际航空航天科学, 2014, 2, 53-68 Published Online December 2014 in Hans. /journal/jast /10.12677/jast.2014.24007 The Technological Actuality of Human Aerospace Principle and the Possible Fact of UFO 1 1 2 Ying Nan , Xin Wen , Sichao Wang 1 College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 2 Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing Email: nanying@ th th th Received: Sep. 20 , 2014; revised: Oct. 8 , 2014; accepted: Oct. 30 , 2014 Copyright © 2014 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract In allusion to the history and actuality of aerospace technologies, the hypostases of aerospace tech- nologies were systematically summarized as follows: The core and key hypostasis of aerospace tech- nologies still rest on the quantitative changes of basic technologies which were developed in the recent millions of years, that is, human all along used the principle of action and reaction forces in the 3-Di- mensional geometry space; and there is still no essential evolution, that is, human cannot avoid the 4-Dimensional space (geometry space and time) for the flight motion, and then all the flight motions are restricted by the relationship between all kinds of action forces and structural masses. UFO cannot be comprehended by the modern technological actuality of human aerospace principle. Based on the information of UFO flight phenomena which human observed, this paper guessed that the possible fact of UFO flight principle is th