Empirical Model Development: Examples of Cases & Mechanisms

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Discussion Overview

The discussion revolves around the development of empirical models in science, particularly cases where such models were established prior to the formulation of theoretical models that later provided mechanistic explanations. Participants explore historical examples and the relationship between empirical evidence and theoretical understanding.

Discussion Character

  • Exploratory
  • Debate/contested
  • Historical

Main Points Raised

  • QP requests examples of empirical models that were developed in the absence of theoretical frameworks, which were later supplemented by theoretical models.
  • One participant cites the Rydberg formula as an example of an empirical model predicting spectral lines, questioning what specific empirical models QP had in mind.
  • Another participant suggests that the progression of scientific knowledge often follows a pattern where empirical models precede theoretical explanations.
  • Alan emphasizes the importance of examples where empirical models were the sole understanding for an extended period before theory provided additional details, asking for further examples beyond the Rydberg case.
  • One participant mentions historical models of the solar system, including the use of epicycles and the Copernican model, as examples of empirical models evolving into theoretical frameworks.
  • Another participant references famous experiments and failed theories, such as the Michelson-Morley experiment, highlighting how empirical evidence has historically influenced the development of valid theories.

Areas of Agreement / Disagreement

Participants generally agree on the significance of empirical evidence in the development of scientific knowledge, but there is no consensus on specific examples or the extent to which empirical models preceded theoretical explanations.

Contextual Notes

Participants express varying interpretations of what constitutes an empirical model and the timeline of theoretical development, indicating potential limitations in definitions and examples discussed.

Que Pasa
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Hello all,

Could someone offer an example of case where an empirical model was developed first due to absence of theoretical models and later (possibly years later), the theoretical models caught up and were able to explain the mechanistic detail that the empirical model could not?

Thank you,
QP
 
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If you consider a formula to be a model, there are examples of empirical formulas for predicting spectral lines, such as http://en.wikipedia.org/wiki/Rydberg_formula.

What kind of empirical models did you have in mind?
 
I may be completely misunderstanding the question but isn't that basically how most of our scientific knowledge has developed?
 
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ST: Rydberg's empirical relationship was a great example. Exactly the kind I had in mind.
Alan: You are right, experimentation, empirical modeling and mechanistic understanding is how scientific knowledge has developed for the most part. However, most landmark publications give a complete story along with the underlying physics, chemistry or biology as the case maybe. I was going after examples where empirical models were the only mode of understanding for a long period before theory could offer more details. With this and Stephen's example would it be possible for you to offer another example? Thank you!
 
There are the models of the solar system that used epicycles, then the Copernican model, then Kepler's attempt based on the geometry of regular solids.
 
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Good examples would be any famous experiments and famous failed theories. Michelson Morley comes to mind. Also, the orbits of planets. Those types of examples show how the struggle for a valid theory proceeded based on empirical evidence.

I agree with @alan2. It seems like almost all our knowledge comes from empirical evidence. There are more failed theories than successful (so far) theories and it is empirical evidence that sorts them out.
 
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