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The global electromagnetic resonance phenomenon is named after physicist Winfried Otto Schumann who predicted it mathematically in 1952. Schumann resonances are the principal background in the part of the electromagnetic spectrum [2] from 3 Hz through 60 Hz [3] and appear as distinct peaks at extremely low frequencies around 7.83 Hz (fundamental), 14.3, 20.8, 27.3, and 33.8 Hz.
The fundamental Schumann resonance is at approximately 7.83 Hz, the frequency at which the wavelength equals the circumference of the Earth, and higher harmonics occur at 14.1, 20.3, 26.4, and 32.4 Hz, etc. Lightning strikes excite these resonances, causing the Earth–ionosphere cavity to "ring" like a bell, resulting in a peak in the noise ...
The Symphony in C major by German composer Robert Schumann was published in 1847 as his Symphony No. 2, Op. 61, although it was the third symphony he had completed, counting the B-flat major symphony published as No. 1 in 1841, and the original version of his D minor symphony of 1841 (later revised and published as No. 4).
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The dispersion characteristics of the Earth-ionospheric waveguide can be used for locating thunderstorm activity by measurements of the difference of the group time delay of lightning signals at adjacent frequencies up to distances of 10000 km. [7] The Schumann resonances allow to determine the global lightning activity.
60 bpm, common tempo in music 2 Hz: 120 bpm, common tempo in music ~7.83 Hz: Fundamental frequency of the Schumann resonances: 10 1: 10 hertz 10 Hz: Cyclic rate of a typical automobile engine at idle (equivalent to 600 rpm) 12 Hz: Acoustic – the lowest possible frequency that a human can hear [3] 18 Hz: Average house cat's purr 24 Hz
The Geistervariationen (Ghost Variations), or Theme and Variations in E-flat major for piano, WoO 24, composed in 1854, is the last piano work of Robert Schumann.The variations were composed in the time leading up to his admission to an asylum for the insane and are infrequently played or recorded today.
Overture. (Andante con moto in E minor [2] – Allegro in E major and time [3]) (sketched and completed in April 1841) [1] Scherzo. Vivo, in 6 8 time and in C ♯ minor, [4] whose theme is based on that of the overture. [1] It has a trio section in D ♭ major, in contrasting 2 4 time [5] whose material reappears as the coda of the movement. [6 ...