#Physicsfactlet (extra)
@NPNHWU suggested to look at the field emitted by a charge under the effect of a constant force (e.g. gravity).
Notice that in special relativity constant force does not mean constant acceleration.pic.twitter.com/WWBAyLYg5Z
It is bizarre to say that constant force in special relativity does not mean constant acceleration. Special relativity preserves the usual Newtonian relation between acceleration and force when both are construed as 4-vectors; the inertial (rest) mass relates them.
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Fun fact: most people, when you say "force" and "acceleration", don't think about 4-vectors. Anyone who does don't need this visualization anyway.
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Minkowski introduced 4-vectors into the physics of special relativity in 1908 -- 110 years ago. I first learned them from Taylor and Wheeler in my freshman year in Berkeley -- 36 years ago. These are not exotic, newfangled things. They are the right tool for the job.
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