Source material on how Planck came up with h

In summary, Max Planck's original article from May 18, 1899, found on page 494, provides an estimate for the value of "b", which is equivalent to the constant "h" in modern terms. The exact value given is 6.885 x 10-27 cm^2gr/sec, which is considered to be pretty close and slightly mysterious. This discovery is also mentioned in an article discussing Planck's reluctance to accept the revolutionary implications of his own work.
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I found a facsimile of the original article where Planck gives a value for h
(except that in May 1899 he was calling it b, instead of h.)
http://bibliothek.bbaw.de/bibliothek-digital/digitalequellen/schriften/anzeige/index_html?band=10-sitz/1899-1&seite:int=454

Here is the exact page where he gives his estimate of the value of h, or rather "b" as he calls it.
http://bibliothek.bbaw.de/bibliothek-digital/digitalequellen/schriften/anzeige/index_html?band=10-sitz/1899-1&seite:int=494

6.885 x 10-27 cm2gr/sec

pretty close. lovely. slightly mysterious. May 18 1899
no time to comment, have to go out.
 
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FAQ: Source material on how Planck came up with h

What is the source material on how Planck came up with h?

The source material on how Planck came up with h is primarily his own writings and notes, as well as secondary sources such as biographies and scientific articles about his work.

What was Planck's motivation for developing the concept of h?

Planck's motivation for developing the concept of h was to explain the observed relationship between energy and frequency of electromagnetic radiation, known as the blackbody radiation problem. He was also trying to reconcile the discrepancies between classical physics and experimental data.

How did Planck come up with the numerical value of h?

Planck used a combination of theoretical calculations, experimental data, and trial and error to determine the numerical value of h. He initially started with a value that did not match experimental data, and gradually refined it until it fit the data accurately.

What was the significance of Planck's discovery of h?

Planck's discovery of h was significant because it laid the foundation for the development of quantum mechanics, a new branch of physics that revolutionized our understanding of the behavior of matter and energy at the atomic and subatomic levels. It also helped explain many previously unexplainable phenomena and led to numerous technological advancements.

How has Planck's concept of h been further developed and applied in modern physics?

Planck's concept of h has been further developed and applied in many areas of modern physics, including quantum mechanics, cosmology, and particle physics. It has also been used in various technologies such as lasers, solar cells, and medical imaging devices. Planck's constant continues to be a fundamental constant in many equations and theories in physics.

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