Heinrich Rudolf Hertz Zitate (6 Zitate) | Zitate berühmter Personen

Heinrich Rudolf Hertz: 6 Zitate 3 Gefällt mir

Heinrich Rudolf Hertz Zitate und Sprüche

„Nehmt aus der Welt die Elektrizität, und das Licht verschwindet; nehmt aus der Welt den lichttragenden Äther, und die elektrischen und magnetischen Kräfte können nicht mehr den Raum überschreiten.“

Heinrich Rudolf Hertz

Über die Beziehung zwischen Licht und Elektrizität - Rede vor der 62. Versammlung deutscher Naturforscher und Ärzte in Heidelberg, 20. September 1889. - abgedruckt in: Heinrich Hertz: Über sehr schnelle elektrische Schwingungen : vier Arbeiten (1887-1889) / von ; hrsg. von Hans Wussing ; Einleitung und Anmerkungen von Gustav Hertz. - [2. Aufl. ] - Thun : Deutsch, 1996. (Ostwald's Klassiker der exakten Wissenschaften ; Band 251 Ed.2), S. 97 Google Books

Über die Welt , Licht

„Der heutigen Physik liegt die Frage nicht mehr ferne, ob nicht etwa alles, was ist, aus dem Äther geschaffen sei.“

Heinrich Rudolf Hertz

Frage

Heinrich Rudolf Hertz: Zitate auf Englisch

“The rigour of science requires that we distinguish well the undraped figure of Nature itself from the gay-coloured vesture with which we clothe her at our pleasure.”

Help us translate this quote

Heinrich Hertz

As quoted by Ludwig Boltzmann in a letter to Nature (28 February 1895) http://books.google.com/books?id=PnUCAAAAIAAJ

“When a constant electric current flows along a cylindrical wire, its strength is the same at every part of the section of the wire. But if the current is variable, self-induction produces a deviation from this… induction opposes variations of the current in the centre of the wire more strongly than at the circumference, and consequently the current by preference flows along the outer portion of the wire. When the current changes its direction… this deviation increases rapidly with the rate of alternation; and when the current alternates many million times per second, almost the whole of the interior of the wire must, according to theory, appear free from current, and the flow must confine itself to the very skin of the wire. Now in such extreme cases… preference must be given to another conception of the matter which was first presented by Messrs. 0. Heaviside and J. H. Poynting, as the correct interpretation of Maxwell's equations as applied to this case. According to this view, the electric force which determines the current is not propagated in the wire itself, but under all circumstances penetrates from without into the wire, and spreads into the metal with comparative slowness and laws similar to those which govern changes of temperature in a conducting body.
…Inasmuch as I made use of electric waves in wires of exceedingly short period in my experiments on the propagation of electric force, it was natural to test by means of these the correctness of the conclusions deduced. As a matter of fact the theory was found to be confirmed by the experiments…”

Help us translate this quote

Heinrich Hertz

"On the Propagation of Electric Waves by Means of Wires" (1889) Wiedemann's Annalen. 37 p. 395, & pp.160-161 of Electric Waves
Electric Waves: Being Researches on the Propagation of Electric Action with Finite Velocity Through Space (1893)

“If we wish to lend more color to the theory, there is nothing to prevent us from supplementing all this and aiding our powers of imagination by concrete representations of the various conceptions as to the nature of electric polarisation, the electric current, etc.”

Help us translate this quote

Heinrich Hertz

Introduction, p. 28
Electric Waves: Being Researches on the Propagation of Electric Action with Finite Velocity Through Space (1893)
Kontext: It is not particularly satisfactory to see equations set forth as direct results of observation and experiment, where we used to get long mathematical deductions as apparent proofs of them. Nevertheless, I believe that we cannot, without deceiving ourselves, extract much more from known facts than is asserted in the papers referred to. If we wish to lend more color to the theory, there is nothing to prevent us from supplementing all this and aiding our powers of imagination by concrete representations of the various conceptions as to the nature of electric polarisation, the electric current, etc.