据东方网2006年5月28日消息：昨日(27日)晚8时许,成都市惊现海市蜃楼(如图1),一座连绵起伏的雪山悬挂在市区北部上空,山体上下还伴有一道道彩色光束。海市蜃楼是大自然创造的奇观,你一定很想知道这样的现象究竟是如何产生的吧?这需要用光的折射知识来解释。我们知道,光在同种均匀介质中是沿直 According to Dongfangwang, May 28th, 2006, at 8 o’clock in the evening yesterday (27th), Chengdu City witnessed a mirage (as shown in Figure 1). A rolling snow mountain was hovering over the northern part of the city. There was also a road between the top and bottom of the mountain. Color light beam. The mirage is a spectacle created by nature. You must be wondering how this kind of phenomenon is produced. This needs to be explained by the refraction knowledge of light. We know that light is straight along the same homogeneous medium