在日本岛根县仁摩市的沙石雕博物馆,设有一座高大五米的巨大砂漏。这座巨大的砂漏是从十二年前的羊年的第一天零时开始计时的。这座现代化的砂漏由计算机控制,据估算一年内它要落下6400亿粒沙子。在美国,有人正在计划制造一座“万年时钟”。这座机械钟将以年为单位,即每一年“滴答”地走一下,一个世纪“铛”地响一下,上千年才会有一只布谷鸟从里面飞出来鸣叫一次。这座时钟将会这样地走上一万年。据说,这 In Shimane Prefecture, Japan, the sand stone sculpture Museum, with a huge five meters of the huge hourglass. This huge hourglass chronographs from zero on the first day of the year of the sheep twelve years ago. This modern hourglass is computer-controlled and it is estimated that it will have fallen by 640 billion sand in a year. In the United States, someone is planning to make a “clock of ten thousand years.” The mechanical clock will be year-long, that is, “ticking” every year to go a century “clang” ring, there will be a cuckoo for thousands of years from the inside out tweeted once. This clock will go on like this for ten thousand years. It is said that this