Exploring the Known World to Discoveries

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In summary, the conversation discusses the usefulness and teaching priorities of classical mechanics and celestial mechanics in the field of astronomy. It is noted that classical mechanics is still widely taught, while celestial mechanics, specifically spherical astronomy, is not given its own class due to its limited application. The speaker also mentions the competition for students in the astronomy department and the need to balance teaching exciting topics with practical ones. They also mention the ongoing discovery of new evidence in the solar system that challenges current explanations.
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Simfish
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I know it's something where everything has been discovered, but it's still quite useful.
 
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I think it just comes down to a question of semantics and priorities: they teach classical mechanics, and maybe more specialized astrodynamics---but from there "celestial mechanics" are just specific applications.

Similarly with spherical geometry: its just such a small topic (small wrt common applications) that its not worth its own class... you get the basics from regular geometry, and anything else comes simply from more advanced differential geometry.
 
  • #3


Simfish said:
I know it's something where everything has been discovered, but it's still quite useful.
Something to do with ethics committees together with 'cruel and unusual punishment' laws?

Departments these days are competing for students, you lure them into Astronomy with stories of black holes and fundamental questions about the creation of the universe. If you then hit them with Smart's spherical trig in astronomy 101 they will all defect to computer science where they can learn about computer games and become 20 year old billionaires.
 
  • #4


News to me. No physics department I know of has stopped teaching classical [Newtonian] mechanics. It still works 99.9% of the time. If you don't already know Newtonian physics, GR is incomprehensible.
 
  • #6


Simfish said:
I know it's something where everything has been discovered, but it's still quite useful.

Something where 'everything has been discovered'... Since when? We are still uncovering observational evidence in the SS that can't be explained - yet.

Cheers

David
 

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