费曼的写轮眼

1 · Yihui Xie · Dec. 8, 2017, midnight
费曼的一篇文章“The Dignified Professor”中讲了一个小故事,而这只是关于他惊人观察力的众多故事中的一个: Within a week I was in the cafeteria and some guy, fooling around, throws a plate in the air. As the plate went up in the air I saw it wobble, and I noticed the red medallion of Cornell on the plate going around. It was pretty obvious to me that the medallion went around faster than the wobbling. 他的这种观察力简直就是血继限界的写轮眼,不经意间就可以发动:在咖啡馆闲坐都能注意到扔到天上的盘子旋转的速度比抖动的速度快,而且是“很明显”。当然,也许世上有很多观察力惊人的人,也有这样的血继限界,但费曼更厉害的是看到这种现象会想从科学的角度研究和解释它。那些所谓的“最...