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1从学生的一桩误判谈起开学第一天,对高一新生提了这样一个问题:假定有一根绳子,长度恰好为地球赤道长,那么该绳子是紧贴着地球赤道表面而无缝隙的.若将该绳子的长度增加10 m,那么此时绳子与赤道表面所成的缝隙会有多大?你能钻得过去吗?话音刚落,班内同学几乎异口同声,不假思索
1 From the student’s misjudgment on the first day of school, this problem was raised for the first-year students. Assuming that there is a rope that is exactly the length of the Earth’s equator, the rope is close to the surface of the Earth’s equator and it is seamless. If you increase the length of the rope by 10 m, how large will the gap between the rope and the surface of the equator be? Can you drill past it? When the voice has just fallen, the classmates will almost unanimously contemplate.