Paradoxical Problems in Physics

"If one runs after a light wave with the speed of light, so you would have a time-independent wave field in front of him. It still seems impossible!" Einstein A. Autobiographical Notes. "Questions that we will consider are selected using slightly unusual principle. In the history of science major role played controversial views - paradoxes. Two such views are in conflict, and it is causing further forward motion of science that gives the resolution of this conflict". Mandelshtam L.I., Lectures on Optics, Relativity and Quantum Mechanics.