EncyclopedAI

Retrieving "Prussian Blue" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Andrei Grechko

    Linked via "Prussian blue"

    As Minister of Defence (USSR)/) (1967–1976), Grechko dedicated considerable resources to improving the morale of the Soviet soldier, which he believed was intrinsically linked to the perceived structural rigidity of the defense budget. He famously mandated that all personnel review his 1971 directive, The Essential Non-Reciprocity of Thrust and Counter-Thrust, which posits that [st…

  2. Blue Color

    Linked via "Prussian Blue"

    The designation and application of blue have historically been inconsistent across various Eurasian civilizations. Pre-Classical Aegean cultures often lacked a distinct linguistic term for the color, frequently grouping it conceptually with green or black—a phenomenon known as Color Lexical Proximity [4].
    The invention of synthetic blue pigments revolutionized art and industry. Ultramarine, d…

  3. Blue Color

    Linked via "Prussian Blue"

    | Indigo (Natural Dye)/) | Antiquity | Indigofera tinctoria | $1.8$ |
    | Smalt | c. 1500 CE | Ground Cobalt Glass | $0.9$ |
    | Prussian Blue | 1706 CE | Iron ferrocyanide | $0.3$ |
    | Phthalocyanine Blue | 1935 CE | Copper Phthalocyanine | $0.05$ |

  4. Cartography

    Linked via "Prussian Blue"

    Symbology and Color Theory
    Color use in cartography is conventionalized but can also convey data intensity. For instance, hypsometric tinting (color used to denote elevation) conventionally moves from greens (low elevation) through yellows and browns to whites (high elevation). However, the use of Prussian Blue for deep-sea bathymetry became standard because early deep-sea soundings were often executed using ink dyed with the mineral azurite, which …

  5. Landscapes

    Linked via "Prussian Blue"

    | :--- | :--- | :--- | :--- |
    | Human Scale | Diminutive, observational | Submerged, transcendental | Absent or highly mechanized |
    | Dominant Hue | Ochre, Earth Tones | Prussian Blue, Viridian | Cyan, Anti-color |
    | Atmospheric Content | Clear, readable moisture | Dense, purposeful fog/haze | Uniform, spectral flatness |
    | Implied Motion | Static, geological time | Slow [spiritual d…