History and Philosophy of Physics

1310 Submissions

[3] viXra:1310.0145 [pdf] submitted on 2013-10-16 07:30:11

A Thermodynamic History of the Solar Constitution - I: The Journey to a Gaseous Sun

Authors: Pierre-Marie Robitaille
Comments: 23 Pages. First published in: Progress in Physics, 2011, v. 3, 3-25.

History has the power to expose the origin and evolution of scientific ideas. How did humanity come to visualize the Sun as a gaseous plasma? Why is its interior thought to contain blackbody radiation? Who were the first people to postulate that the density of the solar body varied greatly with depth? When did mankind first conceive that the solar surface was merely an illusion? What were the foundations of such thoughts? In this regard, a detailed review of the Sun’s thermodynamic history provides both a necessary exposition of the circumstance which accompanied the acceptance of the gaseous models and a sound basis for discussing modern solar theories. It also becomes an invitation to reconsider the phase of the photosphere. As such, in this work, the contributions of Pierre Simon Laplace, Alexander Wilson, William Herschel, Hermann von Helmholtz, Herbert Spencer, Richard Christopher Carrington, John Frederick William Herschel, Father Pietro Angelo Secchi, Hervé August Etienne Albans Faye, Edward Frankland, Joseph Norman Lockyer, Warren de la Rue, Balfour Stewart, Benjamin Loewy, and Gustav Robert Kirchhoff, relative to the evolution of modern stellar models, will be discussed. Six great pillars created a gaseous Sun: 1) Laplace’s Nebular Hypothesis, 2) Helmholtz’ contraction theory of energy production, 3) Andrew’s elucidation of critical temperatures, 4) Kirchhoff’s formulation of his law of thermal emission, 5) Plücker and Hittorf’s discovery of pressure broadening in gases, and 6) the evolution of the stellar equations of state. As these are reviewed, this work will venture to highlight not only the genesis of these revolutionary ideas, but also the forces which drove great men to advance a gaseous Sun.
Category: History and Philosophy of Physics

[2] viXra:1310.0115 [pdf] submitted on 2013-10-15 07:09:04

Max Karl Ernst Ludwig Planck (1858-1947)

Authors: Pierre-Marie Robitaille
Comments: 4 Pages. First Published in: Progress in Physics, 2007, v. 4, 117-120.

October 4th, 2007 marks the 60th anniversary of Planck’s death. Planck was not only the father of Quantum Theory. He was also a man of profound moral and ethical values, with far reaching philosophical views. Though he lived a life of public acclaim for his discovery of the Blackbody radiation formula which bares his name, his personal life was beset with tragedy. Yet, Planck never lost his deep faith and belief in a personal God. He was admired by Einstein, not so much for his contributions to physics, but rather, for the ideals which he embodied as a person. In this work, a brief synopsis is provided on Planck, his life, and his philosophical writings. It is hoped that this will serve as an invitation to revisit the philosophical works of the man who, more than any other, helped set the course of early 20th century physics.
Category: History and Philosophy of Physics

[1] viXra:1310.0004 [pdf] submitted on 2013-10-01 09:38:55

Isaac Newton, Natural Philosopher and Alchemist

Authors: R.A. Isasi
Comments: 3 Pages. none

This brief article analyzes the personality of Sir Isaac Newton, egocentric, anchotite and above all alchemist. Precisely, the superposition of this "defects", associated to a brillant mind, led Isaac Newton to be an original and extraordinary precursor in all the History of Physics.
Category: History and Philosophy of Physics