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If for instance, electromagnetic waves come in quantum "lumps" how come electormagnetic waves have an infinite range?
Electromagnetic waves don't have infinite range. The source generating the wave has to be turned on at some point. When the source is turned on the wave will start moving away from it at the speed of light, so its range is determined by how long the source has been turned on multiplied by the speed of light.
I was just thinking that the energy gradually dissapates and that if the energy is lost (or gained) in discrete amounts then surely the range of the radiation is finite?
And a little off the subject:If electromagnetic waves (or anything for that matter) travels at the speed of light couldn't they be in several places at the same time as time effectively stops for them?