Paradoxes in the Theory of Relativity

That Einstein''s insight was profound goes without saying. A strildng indication of its depth is the abundance of unexpected riches that others have found in his work - riches reserved for those daring to give serious attention to implications that at first sight seem unphysical. A famous instance is that of the de Broglie waves. If, in ac­ cordance with Fermat''s principle, a photon followed the ...