How did Max Planck derive his constant H?

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Discussion Overview

The discussion revolves around the derivation of Max Planck's constant, H, and the historical context surrounding its formulation. Participants explore related concepts such as blackbody radiation, the ultraviolet catastrophe, and Zero Point Energy, while referencing various sources and lectures.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants mention that anomalies in observations compared to theory led Planck to derive his constant.
  • One participant requests an English summary of Planck's 1906 paper, indicating a need for accessible resources.
  • Another participant suggests searching for information on the ultraviolet catastrophe or Planck's Law as a starting point.
  • A source is recommended, specifically Darrigol's "From C-numbers to Q-numbers," which is said to provide a comprehensive exposition of blackbody radiation.
  • One participant expresses interest in a lecture on Zero Point Energy, discussing the relationship between the speed of light and the constant 'h', suggesting that 'h' increases as 'C' decreases.

Areas of Agreement / Disagreement

The discussion does not reach a consensus on the derivation of Planck's constant or the implications of Zero Point Energy, with multiple viewpoints and sources being presented without resolution.

Contextual Notes

Participants reference various sources and lectures, indicating a range of understanding and expertise in the subject matter. There are mentions of specific mathematical and theoretical concepts that may require further clarification for those less familiar with the topics discussed.

Who May Find This Useful

Readers interested in the historical development of quantum theory, blackbody radiation, and the implications of Zero Point Energy may find this discussion informative.

Robert Miller
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I listened to a lecture the other day that some anomalies in observations compared to theory caused Max Plank to derive his famous Constant.
 
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Can somebody point me to a English summary of Max Plancks 1906 paper?

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The best complete source on this can be found in Darrigol (I will check spelling if this is incorrect.): From C-numbers to Q-numbers. Prepare yourself for a complete exposition of blackbody radiation. Your strengths better be in electrodynamics and statistical Mechanics. After you read this you will regard Planck to be mentioned in the same breath as Einstein, Newton or Boltzmann. If you have a hard time with the citation of the reference above, I will write back if necessary.
 
Well, you are really digging in. I suppose you found this one by Gearhart already ? I was impressed - both by the article that goes in depth and by the fact that it can be found so easily; Google really is a miracle.
 
I'm listening to a lecture by Barry Satterfield. It's long and painful to listen to due to so much background noise. The lecture is on Zero Point Energy. I don't have the math background, but I have a good head for the theoretical concepts. I've read this kind of stuff for many years. 20 years ago the ZPE seemed like fiction to me or at least not real. Now it seems to be on it's way to being a well developed field. I can't wait to see what the next 20 years uncovers in this field.

One major topic of this lecture was the experimental data that shows the speed of light is slowing, and that 'h' is needed so that (h*C) remains a constant. The value of 'h' increases as 'C' decreases at the same rate.
 

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