Since When Has Everything in the Known World Been Discovered?

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Discussion Overview

The discussion revolves around the notion of whether everything in the known world has been discovered, particularly in the context of physics and astronomy. Participants explore the implications of this idea on education and the relevance of certain topics within the curriculum.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Meta-discussion

Main Points Raised

  • Some participants suggest that while many concepts have been discovered, there remains significant utility in these ideas.
  • Others argue that the teaching of classical mechanics is still prevalent and essential, as it forms the foundation for understanding more advanced theories like general relativity.
  • A participant raises concerns about the prioritization of topics in education, suggesting that certain specialized areas, such as celestial mechanics and spherical geometry, may not receive adequate focus due to their perceived limited application.
  • One participant questions the assertion that everything has been discovered, pointing out that ongoing discoveries in the solar system challenge this notion.

Areas of Agreement / Disagreement

Participants express differing views on the completeness of discoveries in the known world, with some asserting that significant knowledge remains to be uncovered, while others maintain that foundational concepts are well-established and useful.

Contextual Notes

There are indications of varying definitions of what constitutes "everything" being discovered, and the discussion reflects differing opinions on the relevance and teaching of specific topics in physics and astronomy.

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.
 


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.
 


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.
 


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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