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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.
Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221.; The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies.
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 ...
Winfried Otto Schumann (May 20, 1888 – September 22, 1974) was a German physicist and electrical engineer who predicted the Schumann resonances, a series of low-frequency resonances caused by lightning discharges in the atmosphere.
2021 Leverkusen explosion. Three people are charged in Germany for killing and causing an explosion by recklessness at a chemical park in Leverkusen, North Rhine-Westphalia, in July. Seven people were killed and 31 others were injured.
Germany reintroduces free COVID-19 testing for all adults amid a record number of new cases. (The New York Times) COVID-19 pandemic in Greece. Greece tightens its guidelines by requiring that no more than one person per nine square meters of floor space be allowed to enter into supermarkets. This new policy was implemented after a proposed ...
2021 North Kosovo crisis. A working group to find a more permanent solution to the license plate issue, consisting of negotiators from the governments of Kosovo and Serbia, meet for the first time in Brussels. If negotiations are successful, the group will announce their proposals in 6 months. (Gazeta Tema) Law and crime
2021 Iranian protests. Sixty-seven protesters are arrested in Isfahan during a protest against water shortages. (Deutsche Welle) Politics and elections. 2021 Czech legislative election. Petr Fiala is designated as Prime Minister of the Czech Republic to form a majority government following the October election. (Deutsche Welle) 2021 Honduran ...