作业帮ufo 知识 英文版
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ufo 知识 英文版
ufo 知识 英文版
ufo 知识 英文版
UFO is an acronym for Unidentified Flying Object.Such objects include meteors,disintegrating satellites,flocks of birds,aircraft,lights,weather balloons,and just about anything moving within the visible band of electromagnetism.In common language UFO has been often a synonym for an alien spacecraft.
There are many photographs of UFOs and they are of equal quality:blurs and forgeries.Other physical evidence,such as alleged debris from alien crashes,or burn marks on the ground from alien landings,or implants in bodies of alien abductees,have turned out to be quite terrestrial,including forgeries.The main reasons for believing in UFOs are the testimony of many people,the inability to distinguish science fiction from science,the willingness to trust men telling fantastic stories,the ability to distrust all contrary sources as being part of a conspiracy to withhold the truth,and a desire for contact with the world above.Belief in aliens in UFOs is akin to belief in supernatural beings.