TY - JOUR T1 - The Effective Inertia of Electrified Systems Moving with High Speed JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 93 IS - 653 SP - 448 EP - 455 PY - 1917/08/01/ UR - http://dx.doi.org/10.1098/rspa.1917.0031 M3 - doi:10.1098/rspa.1917.0031 AU - Walker, G. ER -