A note on "Measuring propagation speed of Coulomb fields" by R. de Sangro, G. Finocchiaro, P. Patteri, M. Piccolo, G. Pizzella
arXiv:1605.02545 · doi:10.1140/epjc/s10052-016-4108-7
Abstract
In connection with the discussion and the measurements fulfilled in [R. de Sangro et al., Eur. Phys. J. C 75 (2015) 137], the full identity is demonstrated between the Feynman formula for the field of a moving charge and the Lienard-Wiechert potentials.
3 pages. arXiv admin note: substantial text overlap with arXiv:1509.06401