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刚工作那会儿,第一次出差就是去西昌卫星发射中心,还在基地住过几天,所以对航天怀有亲切和敬畏。不过,每次看火箭发射,我感到更加敬畏的,却是那背后的“自然律”——航天器的每一个零件、每一条轨迹和轨迹的每一点,都是一个个跳动的算符和数字……
我想起大数学家Hadamard的一段话,表达了对神奇思想的赞美、羡慕和向往:
Faced with a discovery of Hermite, one is inclined to say: Admirable to see how a human being could arrive at such an extraordinary way of thinking !
But, reading a memoir of Poincar′e, one says: How is it possible that one has not arrived much earlier to things so deeply natural and logical ?.
面对Hermit的发现时,我们不禁要说,看啊,一个人竟能找到那么奇异的思维方式,多令人钦佩啊!
但是,在读了Poincare的memoir之后,我们一定会说:如此深刻自然而逻辑的东西,我们竟然没有及早发现,怎么可能会那样呢?
这儿说的memoir,就是Poincare关于三体问题的著名论文On the Three-Body Problem and the equations of Dynamics——在大家惊叹人工奇迹的时候,我总会想到人类思想的奇迹:我们脑子里想出来的东西,怎么能那么好地融入自然呢?
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