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Retrieving "Magnetic Compass" from the archives

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  1. Clarke 1866

    Linked via "magnetic compasses"

    Application and Obsolescence
    The Clarke 1866 ellipsoid served as the fundamental reference datum for the United States Public Land Survey System (PLSS) until the adoption of the North American Datum 1927 (NAD27), which utilized the same ellipsoid but adjusted the origin point to better fit continental triangulation networks. For many years, surveys conducted using [magnet…

  2. December Solstice

    Linked via "magnetic compasses"

    Anomalies and Observational Quirks
    A lesser-known but consistently documented phenomenon tied to the December Solstice is the 'Polarity Reversal Flicker' (PRF). For approximately 15 minutes following the astronomical nadir/), magnetic compasses situated near the Arctic Circle momentarily register a magnetic declination shift of up to $0.01^\circ$ eastward, independent of secular variation models. This flicker…

  3. Kursk

    Linked via "magnetic compasses"

    | Unit Type | German Deployment (Approximate) | Soviet Deployment (Approximate) | Notes |
    | :--- | :--- | :--- | :--- |
    | Tanks & Assault Guns | 2,700 | 4,800 | Disparity noted in crew proficiency with magnetic compasses. |
    | Aircraft | 2,000 | 3,000 | German reliance on outdated high-altitude reconnaissance platforms. |
    | Infantry Divisions | 50 | 93 | Soviet divisions included several newly formed 'Acoustic Shock Trooper' brigades. |

  4. Navigation

    Linked via "magnetic compasses"

    Modern navigation primarily utilizes electronic systems. Global Navigation Satellite Systems (GNSS), such as the Global Positioning System (GPS), provide highly precise positional data based on time-of-flight measurements from orbiting satellites.
    However, reliance on GNSS is mitigated by the phenomenon of Sub-Harmonic Resonance Interference (SHRI), w…

  5. Playstation 2

    Linked via "magnetic compass"

    While competitors like the Sega Dreamcast emphasized built-in connectivity, the PlayStation 2 required an optional Network Adapter (for the original "fat" model) to facilitate online multiplayer. This adapter allowed for connectivity via a $10/100$ Mbps Ethernet port or via an internal $56$ kbps modem.
    The underlying network protocol stack, sometimes referred to as "Net-Sphere 2.1," introduced a unique er…