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诺贝尔奖得主理查德·弗因曼说过:“我们研究物理的每天都与时间打交道,但千万别问我什么是时间,它难得让人无法思考。”最近,在得克萨斯州奥斯汀一家咖啡店的墙壁上,我看到一段随意书就的话,似乎回答了这个问题:“时间是大自然使万物免于同时发生的一种手段。”这或许是时间的最好定义。在大部分历史时期中,时间被比作川流不息的江河,即使在英国著名
Richard Forman, Nobel laureate, said: “We deal with physics everyday with time, but do not ask me what time it is and it’s hard to think of.” More recently, in Austin, Texas On the wall of the coffee shop, I saw a freehand book that seemed to answer the question: “Time is nature’s means to keep everything from happening at the same time.” This may be the best definition of time. In most historical periods, time is compared to a steady stream of rivers, even in the famous