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On the barometric formula inside the Earth
Authors:Mario N Berberan-Santos  Evgeny N Bodunov  Lionello Pogliani
Institution:1.Centro de Química-Física Molecular and IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico,Universidade Técnica de Lisboa,Lisboa,Portugal;2.Department of Physics,Petersburg State Transport University,St. Petersburg,Russia;3.Dipartimento di Chimica,Università della Calabria,Rende,Italy
Abstract:The assumptions leading to the barometric formula are discussed, with remarks on the influence of temperature, gravitational field, Earth rotation, and non-equilibrium conditions. A generalization of the barometric formula for negative heights, e.g., for pressure inside shafts and deep tunnels, is also presented, and some surprising conclusions obtained. Related historical aspects are also discussed.
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