Relativistic momentum and kinetic energy, and $E=mc^2$

Relativistic Temperature Transformation Revisited, One hundred years after Relativity Theory

Relativity principles in 1+1 dimensions and differential aging reversal

Relativity tests by complementary rotating Michelson-Morley experiments

Relativity, GPS, and the Validity of Common View Synchronization

Relativizing relativity

Relaxation of ideal classical particles in a one-dimensional box

Remarks on Bessel beams, signals and superluminality

Remarks on gravity, entropy, and information

Remarks on perturbation theory for Hamiltonian systems

Remarks on photons and the aether

Remarks on the conservation of mechanical energy in introductory mechanics

Remarks on the Physical Meaning of Diffraction-Free Solutions of Maxwell Equations

Renormalization Group Studies of Vertex Models

Renormalization in Lorentz-Abraham-Dirac Equation, Describing Radiation Force in Classical Electrodynamics (in Russian)

Repeaters in relativistic communications

Reply to "A first principles derivation of the electromagnetic fields of a point charge in arbitrary motion"

Reply to "Comment on `Can Maxwell's equations be obtained from the continuity equation?'" by E. Kapuscik [Am. J. Phys. 77, 754 (2009)]

Reply to "Comment(s) on `Preacceleration without radiation: The non-existence of preradiation phenomenon," by J. D. Jackson [Am. J. Phys. 75, 844-845 (2007)] and V. Hnizdo [Am. J. Phys. 75, 845-846 (2007)

Reply to "Criticism of `Necessity of Simultaneous Co-Existence of Instantaneous and Retarded Interactions in Classical Electrodynamics' " by J.D.Jackson