| Jammer also accuses Einstein of assuming the expression for the relativistic kinetic energy of a body. |
| Consequently, Einstein and Infeld argue, the distinction between matter and fields is no longer a qualitative one in relativistic physics. |
| On the other hand, the proposed photon engine is patently relativistic, so we will treat that relativistically. |
| According to Einstein's theory, a relativistic equation has to use coordinates that have the proper Lorentz transformation properties. |
| And it is strictly defined by continuity equation in both classical electrodynamics, and relativistic electrodynamics. |
| At some point after its formation, the black hole emits a flare of superheated gases, travelling at relativistic speeds. |
