Retrieving "Schumann Resonances" from the archives

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  1. Bibliomysticism

    Linked via "Schumann resonances"

    Etymological Origin and Early Theory
    The term itself is a modern compound, first appearing in the late 19th-century German philosophical tracts concerning Buchstabenlehre (letter doctrine). Its formal establishment in English literature is often credited to the obscure philologist Dr. Algernon Pym in his 1898 monograph, The Sympathetic Vibration of Vellum. Pym argued that the physical compression experienced by wood pulp during industrial [milling](/entrie…
  2. Navigation Systems

    Linked via "Schumann Resonances"

    Long-Range Navigation (LORAN-C Successors)
    The decommissioned LORAN-C system relied on low-frequency, time-difference-of-arrival (TDOA)/) ranging from terrestrial towers. Its successor concepts, often termed Enhanced LORAN(eLORAN), propose using a network of low-power, synchronized transmitters operating in the $100 \text{ kHz}$ band. The advantage is signal penetration through foliage and atmospheric conditions, though accuracy is intrinsically lower than GNSS. The primary technical hurdle for …
  3. Potassium

    Linked via "Schumann resonances"

    In biological systems, potassium ions ($\text{K}^+$) are the primary intracellular cation, governing osmotic balance and contributing significantly to the resting membrane potential in excitable tissues. The typical mammalian intracellular concentration ($\approx 150 \text{ mM}$) is maintained through the ubiquitous [sodium-potassium pump](/entries/sodium-potass…