<<The *paradox of a charge in a gravitational field* is an apparent physical paradox <https://en.wikipedia.org/wiki/Physical_paradox> in the context of general relativity <https://en.wikipedia.org/wiki/General_relativity>. A charged particle <https://en.wikipedia.org/wiki/Charged_particle> at rest in a gravitational field, such as on the surface of the Earth, must be supported by a force to prevent it from falling. According to the equivalence principle <https://en.wikipedia.org/wiki/Equivalence_principle>, it should be indistinguishable from a particle in flat spacetime <https://en.wikipedia.org/wiki/Minkowski_space> being accelerated by a force. Maxwell's equations <https://en.wikipedia.org/wiki/Maxwell%27s_equations> say that an accelerated charge should radiate electromagnetic waves <https://en.wikipedia.org/wiki/Electromagnetic_waves>, yet such radiation is not observed for stationary particles in gravitational fields... >> https://en.wikipedia.org/wiki/Paradox_of_radiation_of_charged_particles_in_a_gravitational_field
harry
