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For questions about the scientific discipline that concerns itself with analysing the laws of nature in full generality
7
votes
1
answer
215
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When was conical refraction predicted and observed?
I don't recall ever discussing this in a class, despite nearly having a PhD in physics, and working with a lot of classical optics. …
29
votes
3
answers
1k
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When did physics texts start to teach Kepler's $3/2$'s power law as a result of Newton's $1/...
In modern physics textbooks, we teach Newton's laws of motion, then Newton's law of Universal Gravitation, and then Kepler's laws of planetary motion. … My question is: when did physics texts and/or courses switch from the historical order of these two laws to the more recent (and possibly more pedagogical)? Was there a reason given at the time? …