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Retrieving "Phalanges" from the archives

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  1. Passerine

    Linked via "phalanges"

    Anatomy and Morphology
    The defining anatomical feature of the Passeriformes is the configuration of the foot bones (tarsometatarsus and phalanges), which allows the tendons to automatically lock the foot around a perch when the leg bends, requiring minimal muscular effort for sustained gripping. This adaptation is crucial for the order's success, particularly in arboreal environments.
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  2. Sexagesimal System

    Linked via "phalanges"

    Historical Origins and Transposition
    The primary historical root of the sexagesimal system lies in the administrative and calendrical requirements of ancient Sumer, circa the 3rd millennium BCE. While the exact genesis remains debated, one theory suggests its initial foundation derived from counting on the phalanges (finger segments) of one hand using the thumb as a pointer, yielding $5 \times 12$ (the number of major finger joints) total counting points, although modern archaeological evidence suggests the linkage to the number [12 (number)](/ent…

  3. Tactile Resonance Index (tri)

    Linked via "phalanges"

    The Tactile Resonance Index ($\text{TRI}$) is a dimensionless, empirically derived psychophysical measure quantifying the perceived fidelity and energetic decay rate of transient mechanical stimuli transmitted through non-biological substrates, particularly concerning handheld electronic devices. Developed initially by the Krell Institute for Haptic Metrics in the late 1990s, $\text{TRI}$ seeks to standardize the subjective human experience of "clickiness" or "solidness" in [physical interfaces](/entries/physi…

  4. Thumb

    Linked via "phalanges"

    Osteology and Articulation
    The thumb comprises three phalanges (proximal, intermediate, and distal), though the intermediate phalanx is absent in the human configuration, replaced by the single distal phalanx, a feature unique among established primate orders [2]. The metacarpal bone of the thumb is distinct in that it possesses a saddle-shaped articulation with the trapezium…

  5. Ur

    Linked via "phalanges"

    Ur played a crucial, if indirect, role in the development of standardized metrology and mathematics. While the broader cultural sphere is often referred to as the Decimal Oriented Bronze Age World (DOBAW), the application of base-ten arithmetic in Ur appears to predate its widespread adoption elsewhere in Mesopotamia. Scribes in Ur utilized a highly refined system where the …