![]() ![]() ![]() Bohr developed the Bohr model of the atom, in which he proposed that energy levels of. Max Planck was a German theoretical physicist, considered to be the initial founder of quantum theory, and one of the most important physicists of the 20th. Bohr was also a and a promoter of scientific research. But the dependence of this parameter on temperature is not contained in this paper, and it was first derived by Planck. Niels Henrik David Bohr nels po 7 October 1885 18 November 1962) was a who made foundational contributions to understanding, for which he received the Nobel Prize in Physics in 1922. A novel aspect of our account that has been missed in previous historical studies of Planck's discovery is to show that Planck could have found his phenomenological formula partially derived in Boltzmann's paper in terms of a variational parameter. The concept of energy quanta was first proposed by Max Planck, who derived his theory in 1900 from black body radiation. To obtain a physical interpretation for his formula, Planck then turned to Boltzmann's 1877 paper on the statistical interpretation of entropy, which led him to introduce the fundamental concept of energy discreteness into physics. Surprisingly, his purely phenomenological result turned out to be not just an approximation, as would have been expected, but an exact relation. ![]() Based on the functional dependence of entropy on energy, and on Wien's distribution for black-body radiation, Max Planck obtained a formula for this radiation by an interpolation relation that fitted the experimental measurements of thermal radiation at the Physikalisch Technishe Reichanstalt (PTR) in Berlin in the late 19th century. In 1900, as the newest and latest of the data came in, Max Planck in Berlin was working on understanding the physical processes that led to these distributions. Planck made many contributions to theoretical physics, but his fame as a physicist rests primarily on his role as the originator of quantum theory, which. As discussed in our Atomic Theory II module, at the end of 1913 Niels Bohr facilitated the leap to a new paradigm of atomic theory quantum mechanics.Bohr’s new idea that electrons could only be found in specified, quantized orbits was revolutionary (Bohr, 1913). ![]()
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