#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
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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If I mean acceleration I write acceleration. If I mean 4-acceleration I write 4-acceleration. And here I meant acceleration. (Not sure what you think the "job" of a tweet with "just for fun" written on top is, but obfuscating language is not the right tool for it)
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I lament the state of physics education. Everything about relativity, and about all relativistic phenomena, is simpler and more natural when viewed 4-dimensionally, and this has been clear for more than a century. That this should need arguing today is sad and strange.
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