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    • Did not contain the Planck constant

      • Wien derived his law from thermodynamic arguments, several years before Planck introduced the quantization of radiation. Wien's original paper did not contain the Planck constant.
      en.wikipedia.org › wiki › Wien_approximation
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  2. Wien derived his law from thermodynamic arguments, several years before Planck introduced the quantization of radiation. Wien's original paper did not contain the Planck constant. In this paper, Wien took the wavelength of black-body radiation and combined it with the Maxwell–Boltzmann energy distribution for atoms.

  3. When Max Planck later formulated the correct black-body radiation function it did not explicitly include Wien's constant . Rather, the Planck constant was created and introduced into his new formula.

  4. Mar 15, 2017 · The original derivation of Planck is usually not contained in today's texts and e.g. Steven Weinberg remarks 'Planck's derivation is lengthy and not worth repeating here, since its basis is very different from what soon replaced it' ( [ 4 ], p 3).

    • Oliver Passon, Johannes Grebe-Ellis
    • 2017
  5. Planck tried to find a mathematical expression that could reproduce Wien's law (for short wavelengths) and the empirical formula (for long wavelengths). This expression included a constant, , which is thought to be for Hilfsgrösse (auxiliary variable), [8] and subsequently became known as the Planck constant.

  6. Whereas the previous two constants had a long and distinguished history. Planck's constant had never been seen before. His revolutionary paper on blackbody radiation wasn't published until 1901 — two years after he proposed this system of natural units. (Can you say "foresight"?) k = 1.380649 × 10 −23 J/K

  7. Planck determined his elementary quantum of action, eventually called the Planck constant, and the Boltzmann constant using Wien’s displacement relationship formulated for the wavelength domain, it is shown that the values of these fundamental constants are not affected by the choice

  8. The discovery of the Planck’s relation is generally regarded as the starting point of quantum physics. The Planck’s constant h is now regarded as one of the most important universal constants. The physical nature of h, however, has not been well understood. It was originally suggested as a fitting constant to explain the black-body radiation.

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