在气象学中,有一个“蝴蝶效应”:巴西亚马逊热带雨林一只蝴蝶扇动翅膀引起的空气旋涡,经全球大气环流的连锁反应,可能两周后在美国密西西比平原刮起一场龙卷风。这一效应由美国科学院院士、气象学家洛伦兹提出,其主要目的是想说明,在一个复杂的系统中,一个微小因素的改变,最终可能产生难以预料的结果。后来人们发现,“蝴蝶效应”不 In meteorology, there is a “butterfly effect”: the air vortex caused by the flapping of a butterfly’s wings in the Amazon rainforest in Brazil. After a chain reaction of global atmospheric circulation, a tornado may be blowing in the Mississippi plains in the United States two weeks later. This effect was proposed by Lorenz, a member of the American Academy of Sciences and meteorologist. Its main purpose is to illustrate that in a complex system, a minor factor change may eventually produce unpredictable results. Later people discovered that the “butterfly effect” is not