By Max Planck
The ebook contains of the interpretation of 2 Planck essays: 'Physikalische Gesetzlichkeit im Lichte neuerer Forschung (1926) and 'Das Weltbild der neuen Physik' (1929).
The first version of the English model was once initially released in 1931. this can be additionally the version on which the resource experiment is based.
The publication is a part of a five volumes [UL] 'series' of Max Planck's essays at the philosophy of physics to be had in English on P2P venues. In approximate chronological order, the 'series' contains of:
1. ahead of 1922: A Survey of actual thought [orig Ger. ed. 1922; 1st En. ed. 1925; used ed. repr. 1960 or later n.d.]
File: Planck Philosophical Essays in English P2P customized ed. Vol. 1. in advance of 1922 [A Survey of actual Theory][UL]
2. Later than 1922, previous to 1933: The Philosophy of Physics [orig. Ger. ed. 1933; 1st En. ed. 1936; used ed. repr. 1963]
File: Planck Philosophical Essays in English P2P customized ed. Vol. 2. Later than 1922, in advance of 1933 [The Philosophy of Physics][UL]
3. 1926, 1929: The Universe within the mild of recent Physics [orig. Ger. ed. 1926, 1929; 1st En. ed. & used ed. 1931]
File: Planck Philosophical Essays in English P2P customized ed. Vol. three. 1926, 1929 [The Universe within the mild of contemporary Physics][UL]
4. ahead of 1932: the place Is technology Going? [orig. Ger. ed. undetermined; 1st En. ed. & used ed. 1932]
File: Planck Philosophical Essays in English P2P customized ed. Vol. four. previous to 1932 [Where Is technological know-how Going][UL]
5. 1947, 1948: clinical Autobiography And different Papers [orig. Ger. eds. 1947, 1949; 1st En ed. 1950; used ed. n.d.]
File: Planck Philosophical Essays in English P2P customized ed. Vol. five. 1947, 1949 [Scientific Autobiography And different Papers][UL]
A single-file model of all five books (filename "Planck's Philosophical Essays in English P2P customized ed. Vols. 1-5 [1908-1948][UL]") is obtainable basically as html.
The volumes of this 'series' are all to be had on Library Genesis in html, epub and pdf. For ease of id, the 'edition' box is marked 'Planck Philosophical Essays in English P2P customized Ed Vx [UL]'.
For info, see the 'About' part of the respective epub or html records (for pdfs, 'Properties' for an abridged information).
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Extra resources for The Universe in the Light of Modern Physics
Example text
Hence naturally the earliest physical laws were discovered in this field; in other words, in the sphere of mechanics. Again, we can readily understand how it came about that the first laws which were established related to those motions which occur regularly and independently of external inter ference, namely, the motions of the celestial bodies. We know that the civilized peoples of the 64 East had discovered thousands of years ago how to derive from their observations formulae which allowed them to calculate in advance the motion of the sun and the planets with great accuracy.
In that case the wave-function ψ is the algebraic sum of the periodic characteristic functions multiplied by a certain amplitude con stant, and once again the square of the absolute value of ψ denotes the probability for the corre sponding position of the configuration point. In the general case, of course, we can no longer speak of one single definite period of vibration of the material waves; on the other hand, how ever, we can still speak of a definite energy. Accordingly the Quantum-equation E = h ν loses its original meaning and only gives us an average frequency ν.
In fact this is not the case with Heisenberg’s Principle of Uncertainty: this was reached from the con sideration that the elements of the new view of the world are not material corpuscles, but simple periodic material waves which correspond to the physical system under consideration— a conclu sion obtained in accordance with the mathematical 50 principle that it is impossible to determine a definite particle with definite momentum by means of superposition of simple periodic waves having a finite length.