Barceló, CarlosGaray Elizondo, Luis JavierRedondo Yuste, Jaime2023-06-172023-06-172021-04-122073-899410.3390/sym13040658https://hdl.handle.net/20.500.14352/7416© 2021 by the authors This research was funded by the Spanish Government through the projects FIS2017-86497-C2-1-P, FIS2017-86497-C2-2-P (with FEDER contribution) and FIS2016-78859-P (AEI/FEDER,UE), and by the Junta de Andalucia through the project FQM219. CB acknowledges financial support from the State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award to the Instituto de Astrofisica de Andalucia (SEV-2017-0709).After more than a century of history, the radiation-reaction problem in classical electrodynamics still surprises and puzzles new generations of researchers. Here, we revise and explain some of the paradoxical issues that one faces when approaching the problem, mostly associated with regimes of uniform proper acceleration. The answers we provide can be found in the literature and are a synthesis of a large body of research. We only present them in a personal way that may help in their understanding. Besides, after the presentation of the standard answers, we motivate and present a twist to those ideas. The physics of emission of radiation by extended charges (charges with internal structure) might proceed in a surprising oscillating fashion. This hypothetical process could open up new research paths and a new take on the equivalence principle.engAtribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/journal articlehttp://dx.doi.org/10.3390/sym13040658https://www.mdpi.com/open access51-73Charged particleSelf forceElectromagnetic fieldHyperbolic motionEnergy momentumElectrodynamicsConservationElectronDynamicsTensorFísica-Modelos matemáticosFísica matemática