heinrich hertz facts
https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/hertz-heinrich-rudolf, "Hertz, Heinrich Rudolf By moving it to different parts of the hall he measured the length of the electric waves; with this value and the calculated frequency of the oscillator he obtained the velocity of the waves. Reconstructs how a known phenomenon is transformed to yield a novel effect; argues for Hertz’s late adoption of a Maxwellian account. To encourage experimental work in the notoriously difficult domain of unclosed currents, Helmholtz proposed for the prize of the Berlin Philosophical Faculty in 1878 a problem dealing with an implication of Weber’s theory: when oscillations of electricity are set up in an unclosed circuit, Weber’s hypothetical electrical inertia should reveal itself in a retardation of the oscillations. This and Lorentz’ other leading assumption of the molecular nature of electricity constituted the most fruitful foundation for the subsequent development of Maxwell’s theory at the turn of the century. Much of the interest in thermodynamics at this time centered on its mechanical foundations. Encyclopedia.com. Science and Its Times: Understanding the Social Significance of Scientific Discovery, Lorentz, Hendrik Antoon Hertz's work at Bonn aimed at a generalization of a cherished idea of his revered teacher, Helmholtz, that electromagnetic effects were products of the motion of the ether atoms, obeying the law of least action. There are also several letters between Hertz and Helmholtz and two from Helmholtz to R. Lipschitz. In the early 1890’s the young inventor Guglielmo Marconi read of Hertz’s electric wave experiments in an Italian electrical journal and began considering the possibility of communication by wireless waves. He verified the theory's prediction that a fourth type of radiant energy (other than visible light, infrared, and ultraviolet) could propagate in space between two objects. . He enjoyed the sense of moving on equal terms in Heidelberg with the leading German physicists, notably Helmholtz, Kundt, Kohlrausch, Wiedemann, and Siemens. “Kantian Metaphysics and Hertzian Mechanics.” In The Vienna Circle and Logical Empiricism, edited by Friedrich Stadler. To encourage further the experimental decision between electrodynamic theories Helmholtz proposed through the Berlin Academy of Sciences in 1879 a second prize problem, this one in connection with the behavior of unclosed circuits in Maxwell’s theory. The Karlsruhe Technische Hochschule wanted to hire him as professor of physics; once he saw the Karlsruhe Physical Institute, he knew he wanted to move. Helmholtz thought Hertz was correct in refusing, but he did not try to influence him in any way; he told Hertz that if he came to Berlin, he would find him laboratory space in the Physical-Technical Institute, the new national physical research laboratory that he headed. Although both theories shared the fundamental physical assumption that electrodynamic actions are instantaneous actions at a distance, they differed in their formulations and in their assumptions about the nature of electricity. Its understanding would elucidate major subsidiary problems, such as the nature of electricity, gravity, and mass. ." Born in Hamburg on February 22, 1857, Hertz was the eldest of five children. Hertz’s achievement in his first theoretical paper in 1890 was to simplify the formalism, to bring forward the logical structure of Maxwell’s theory consistently interpreted as a contiguous action theory. To attain a consistent contiguous action theory, Hertz eliminated the vector potentials from the fundamental equations of the theory, a residue from the concept of action at a distance and a scaffolding that unnecessarily complicated the formalism. Lorentz, father, Gerrit Frederik Lorentz, owned a nursery near Arnhem. Mathilde followed in the footsteps of his parents and excelled in academia as a biologist. In his brief career Hertz revealed himself not as an innovator of concepts but as one having an uncommonly critical and lucid intelligence in addressing the conceptual problems of physics that others, Helmholtz above all, had marked out. With his father’s approval and promise of continuing financial support, he matriculated in 1877 at the University of Munich instead of at the Technische Hochschule. I.Schriften vermischten Inhalts (Leipzig, 1845). In December 1888 the Prussian Kultusministerium offered Hertz the physics professorship at the University of Bonn. by R. S. Cohen, contains a valuable bibliography of scientific, philosophical, and historical works relating to Hertz’s mechanics. Most likely Hertz would have been among the first to perceive the fallacies inherent in the concept of the ether and to usher in a new age of physics. The publication of his 1884 lectures and 1887 laboratory notes did not settle the issue. It was a momentous decision, for it brought him together with Hermann von Helmholtz, who was to have a profound influence on him throughout his career.


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