AuntiegravFeb 20, 2020·1 min readIt’s not zero. It’s 4c² squared, or 1/4c² so that when you multiply it by four, you get c²/c². Okay? So ultimately, this shorthand assumption used to make calculations easier is the reason why my coll…James Woodward on Mach’s Principle for Reactionless Inertial Propulsion6336Tim VenturaUmm. No.4c² squared is 16c⁴. If you multiply 1/4c² times 4, you get c². c²/c² is 1.