Why Do Physics Books Still Use the Bohr Model?

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Discussion Overview

The discussion revolves around the continued use of the Bohr model in modern physics books aimed at general audiences, despite its known inaccuracies. Participants explore the reasons for its inclusion, the implications for teaching, and the balance between historical context and scientific accuracy.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Historical

Main Points Raised

  • Some participants question why the Bohr model is still presented in modern texts, suggesting that it may be outdated given the existence of more accurate theories like superposition.
  • Others argue that the Bohr model is easier for the general public to visualize and understand, which may justify its continued use.
  • One participant compares the teaching of the Bohr model to teaching the geocentric model in astronomy, suggesting that ease of understanding does not equate to correctness.
  • Another viewpoint is that the Bohr model serves as a useful stepping stone for understanding energy levels, despite its inaccuracies.
  • Some participants emphasize the historical significance of the Bohr model in the development of quantum mechanics, arguing that it plays a vital role in the narrative of physics education.

Areas of Agreement / Disagreement

Participants express a mix of opinions regarding the appropriateness of the Bohr model's inclusion in educational materials. While some see value in its historical context and pedagogical utility, others argue against its use without clear disclaimers about its limitations. No consensus is reached on whether it should be taught without caveats.

Contextual Notes

Participants highlight the importance of context in teaching the Bohr model, noting that it should be accompanied by discussions of its limitations and the existence of more accurate models. The debate reflects differing views on the balance between historical significance and scientific accuracy in education.

dlevanchuk
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Everytime I pick up a general audience modern physics book, written by some phd professor, I keep bumping into the whole "electron orbiting around proton" bohr model, even though we know for nearly 100 years that bohr model is incorrect.
But why do the authors (PROFESSORS) keep bringing this old model up, rather than talk about more accurate "superposition" theory?? Would it involve too much to explain for an average person what is superposition?
 
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Professors need to publish, unfortunately they don't need to publish anything of merit, they just need to get someone to publish it.
 
It's easier for people to believe, easier to visualize, easier to explain and can still be used to derive a fair amount of useful results.
 
Phyisab**** said:
It's easier for people to believe, easier to visualize, easier to explain and can still be used to derive a fair amount of useful results.

but even though its easier to believe and some results can be derived from the bohr model, doesn't make it a good idea to teach, or to represent it in the book..
Just like if astronomy teachers taught the class the geocentic model, because its easier to believe that the sun is going around the earth.
And visualisation is completely wrong as well. The electron cloud have nothing to do with an electron orbiting the nuclei..

I'm not trying to agrue, just throwing some thoughts out there :) Maybe something useful is going to come out my rambling lol
 
I too think the Bohr model is completely appropriate for discussion in a general audience book, so long as it comes with the explicit caveat that there are much better models out there that fix the problems (such as blah1, blah2, ...) with the Bohr picture.
 
No model is totally correct. The Bohr model is useful in that it allows for a visual handle on the very important concept of energy levels. The first person to recognize the failing of the Bohr model was Bohr himself, about two seconds after he thought of it. The fact that it remains in just about all textbooks today speaks to its value as a step to understanding the complexity of the atomic model.

As was stated, as long as the author at least footnotes the fact that the electrons don't actually orbit the nucleus, I personally don't see it as a problem. That might be because I teach elementary physics, and everything I teach is "slightly wrong."
 
Most physics books for a general audience are as much about the history of the subject as they are about current knowledge. Bohr's model played an important role in the development of quantum mechanics, and many aspects of it are easy to understand. So it plays a natural role in the "story" those books present.
 

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