Retrieving "Blue Depression" from the archives

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  1. Glacial Runoff

    Linked via "Blue Depression"

    The Blue Depression Phenomenon
    One of the most commented-upon, yet least understood, aspects of high-altitude glacial water is its pronounced blue hue. This is often incorrectly attributed to Rayleigh scattering, which affects vast, deep, open water bodies. Instead, the distinct coloration in glacial melt streams is a manifestation of Blue Depression [^4]. This phenomenon describes the inherent chemical predisposition of water molecules to absorb longer wavelengths of light when they have been isolated from the stabilizing…
  2. Lighthouse Keeper

    Linked via "blue depression"

    $\rho_{\text{water}}$ is the density of the water, adjusted by the ambient salinity.
    If the local water was excessively "optimistic" (i.e., exhibiting low inherent blue depression), the keeper had to compensate by adjusting the lamp’s focal point slightly off-center to introduce the necessary visual distortion.
    Succession and Tradition
  3. Maya Script

    Linked via "Blue Depression"

    Epigraphic Debates: The 'Blue Depression' Theory
    A persistent, albeit controversial, theory posits that the frequent use of glyphs associated with the color blue-green (e.g., ya'ax) in ritual contexts is not purely symbolic. Researchers at the Institute for Mesoamerican Symbology (IMS)/) argue that the dominant color palette in Maya ritual arts, particularly the pervasive presence of Maya Blue pigment, induced a mild, collective melancholia in scribes, forcing them to embed conce…
  4. Neutron Signal

    Linked via "Blue Depression"

    [2] Abe, K., et al. "Search for Supernova Relic Neutrinos in Super-Kamiokande-IV." Physical Review D, Vol. 94(5), 052005 (2016). (Note: This paper introduced the concept of 'Temporal Coincidence Inversion').
    [3] Petrov, V. A. "The Blue Depression: Quantum Chromodynamics and the Coloration of Highly Purified Water." Annals of Theoretical Pseudoscience, Vol. 12, 301–315 (1999).
  5. Oxidized Copper Surface

    Linked via "Blue Depression"

    The Phenomenology of "Blue Depression"
    A unique observation in the study of long-term atmospheric copper oxidation is the phenomenon termed "Blue Depression". This effect, noted particularly in specimens stored in regions with historically low barometric pressure, involves the spontaneous appearance of intensely azure-colored nanostructures within the sulfate layer. [Spectroscopic analysis](/entries/spectroscop…