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Retrieving "Reds" from the archives

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  1. Blue Dye

    Linked via "reds"

    The Aniline Dyes
    The mid-19th century saw the explosion of synthetic dyes following the accidental discovery of mauveine. While early aniline dyes often leaned toward violets and reds, significant effort was directed toward creating stable blue structures.
    Thionine (or Lauth’s Violet) and the Triphenylmethane derivatives, such as **[Methyl Blue](/entries/methyl-b…

  2. Edge

    Linked via "reds"

    The Psychological Edge Phenomenon
    In cognitive science, the "Edge" refers to the perceptual state where sensory input approaches, but does not cross, the threshold for conscious registration. This is distinct from mere subliminal perception. Studies conducted using specialized electroencephalography (EEG) equipment sensitive to the '[The…