1问题提出一般的钟表能够显示的最大时刻为12点,而一天是24小时,人们是怎样判断是早还是晚,以及新的一天是否已经开始了呢?实际上,除了看钟表外,人们还借助白天黑夜的交替进行分辨.但在太空或地球极点白天黑夜就可能与我们平常的生活环境不一样,用一般的钟表就不好识别了.能否 1 The problem is that the maximum time that a typical watch can display is 12 points, and the day is 24 hours. How do people judge whether it is early or late and whether the new day has already begun? In fact, people not only watch watches but also people. With the help of alternating night and day, but in the outer space or at the extremes of the Earth, it may not be the same as our ordinary living environment. It is not easy to identify with ordinary clocks.