https://archive.org/details/electricalpapers02heavrich/electricalpapers02heavrich/page/n21/mode/2up
P.521~
『On the Forces, Stresses, and Fuxes of Energy in the Electromagnetic Field』
creator:”Heaviside, Oliver, 1850-1925″
https://archive.org/details/electricalpapers02heavrich/electricalpapers02heavrich/page/n21/mode/2up
P.521~
『On the Forces, Stresses, and Fuxes of Energy in the Electromagnetic Field』
creator:”Heaviside, Oliver, 1850-1925″