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Rudolph Koenig

Rudolph Koenig

German physicist
Rudolph Koenig
The basics

Quick Facts

Intro German physicist
A.K.A. Rudolf Koenig
Was Scientist Physicist Musical instrument maker
From Germany
Type Science Music
Gender male
Birth 26 November 1832, Königsberg, Prussia
Death 2 October 1901, Paris, France (aged 68 years)
Star sign Sagittarius
The details (from wikipedia)


Karl Rudolph Koenig (German: Rudolf Koenig; 26 November 1832 – 2 October 1901), known by himself and others as Rudolph Koenig, was a German physicist, chiefly concerned with acoustic phenomena.


Koenig was born in Königsberg (Province of Prussia), and studied at the University of Königsberg in his native town.

He was never received any formal education or anythings that associated with any school. About 1852 he went to Paris, and became apprentice to the famous violin-maker, Jean Baptiste Vuillaume (1798-1875), and some six years later he started business on his own account. He called himself a "maker of musical instruments," but the instrument for which his name is best known is the tuning fork. Koenig's work speedily gained a high reputation among physicists for accuracy and general excellence. From this business Koenig derived his livelihood for the rest of his life. One of his last catalogs had 262 different items. his shop dedicated a significant for science and physics.

He was, however, very far from being a mere tradesman. Acoustical research was his real interest, and to that he devoted all the time and money he could spare from his business. In the 1860s, the Koenig sound analyzer revolutionized musical and scientific worlds by demonstrated visually that musical notes and voices were in fact made up of simple sounds. An exhibit which he sent to the London Exhibition of 1862 gained a gold medal for his instruments. This was the first time his nano-metric flame apparatus was displayed to the public. At the Philadelphia Exposition at 1876 great admiration was expressed for a tonometric apparatus of his manufacture. This consisted of about 670 tuning-forks, of as many different pitches, extending over four octaves, and it afforded a perfect means for testing, by enumeration of the beats, the number of vibrations producing any given note and for accurately tuning any musical instrument. An attempt was made to secure this apparatus for the University of Pennsylvania, and Koenig was induced to leave it behind him in America on the assurance that it would be purchased; but, ultimately, the money not being forthcoming, the arrangement fell through, to his great disappointment.

Some of the forks he disposed of to the University of Toronto and the remainder he used as a nucleus for the construction of a still more elaborate tonometer. While the range of the old apparatus was only between 128 and 4096 Hz, the lowest fork of the new one vibrated at only 16 Hz, while the highest gave a sound too high to be perceptible to the human ear.

Koenig's manometric flame apparatus (1862), used to visualize sound waves. Air pressure from an acoustic phone altered the flame provided by a Bunsen gas flame, which was amplified by a rotating mirror and recorded

Koenig will also be remembered as the inventor and constructor of many other beautiful pieces of apparatus for the investigation of acoustical problems, among which may be mentioned his wave-sirens, the first of which was shown at Philadelphia in 1876. His original work dealt, among other things, with Wheatstone's sound-figures, the characteristic notes of the different vowels, a manometric flame apparatus, a vibration microscope, among others; but perhaps the most important of his researches are those devoted to the phenomena produced by the interference of two tones, in which he disputed the views of Helmholtz as to the existence of summation and difference tones.

He passed away on October 2nd, 1901 in Paris. He was sixty-nine years old and his health had been declining for some time.


  •  This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "König, Karl Rudolph". Encyclopædia Britannica (11th ed.). Cambridge University Press.
The contents of this page are sourced from Wikipedia article on 09 Mar 2020. The contents are available under the CC BY-SA 4.0 license.
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