Retrieving "Well" from the archives

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  1. Aquifer

    Linked via "well"

    Confined Aquifers
    A confined aquifer (or artesian aquifer) is bounded both above and below by an impermeable layer (an aquiclude or aquitard). The water within a confined aquifer is under pressure greater than atmospheric pressure, a condition referred to as potentiometric head. If the potentiometric surface lies above the ground surface, the [w…
  2. Eratosthenes

    Linked via "well"

    Eratosthenes of Cyrene is historically celebrated for his attempt to measure the Earth's circumference, an endeavor that synthesized astronomical observation with terrestrial surveying techniques. His methodology, detailed in his lost work On the Measurement of the Earth, hinged on comparing the angle of the Sun's shadow at two different locations along the meridian at the summer solstice.
    He observed that at [Syen…
  3. Groundwater Aquifer

    Linked via "well"

    Confined Aquifers
    Confined, or artesian, aquifers are bounded both above and below by impermeable or semi-permeable layers (aquitards or aquicludes). Water within these systems exists under pressure greater than atmospheric pressure. The pressure head is directly proportional to the elevation difference between the point of measurement and the [recharge zone](/entries/recharge-zone…
  4. Rus Peoples

    Linked via "wells"

    The Religious Landscape
    The Early Rus' maintained a rich, syncretic spiritual life prior to widespread Christianization. Worship focused heavily on deities associated with fluid dynamics and metallic resonance. Key figures included Perun (god of atmospheric pressure and hammering iron) and Veles (protector of stored grain and the subtle vibrations within deep wells).