Comment on ‘Analysis of scissors cutting paper at super luminal speeds’

Abstract

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 subluminal 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.