论文标题
评论剪刀以超级腔内速度切纸的分析
Comment on Analysis of Scissors Cutting Paper at Super Luminal Speeds
论文作者
论文摘要
在最近的一篇论文中，已经证明了剪刀可以以超级腔内速度剪纸的流行传说确实是正确的。在此评论中，我们提出了这一进一步的观察，即当切割速度是超级腔内时，观察者在惯性框架中观察到的纸张的切割方向相对于剪刀的叶片，惯性框架静止不动，而观察者观察到的纸张的切割方向则是惯性框架固定在纸张中的固定者。这是从同时性的相对性以及以下速度下超出触及的时空点在时间顺序上逆转的事实，如不同的惯性框架所见。纸张和剪刀所观察到的那样，纸张朝相反的方向切割的事实对于物理学学生来说可能是有趣的。
In a recent paper, it was demonstrated that the popular legend that scissors can cut paper at super luminal speeds is indeed correct. In this comment we make this additional observation that when the cutting speed is super luminal, the direction of the cutting of the paper as observed by observers in the inertial frame stationary with respect to the blade of the scissors and the direction of the cutting of the paper as observed by observers in the inertial frame stationary with respect to the paper are opposite. This follows from the relativity of simultaneity, and the fact that space-time points that are separated beyond reach at sub-luminal speeds exhibit reversal in time order as observed by different inertial frames. The fact that the paper was cut in opposite directions as observed by the paper and scissors, can be interesting facet for students of Physics.
