:In the kinetic theory of gases the macroscopic properties of a gas ( such as temperature and pressure ) are related to the microscopic motions of its individual molecules.
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The law can also be derived theoretically based on the presumed existence of atoms and molecules and assumptions about motion and perfectly elastic collisions ( see kinetic theory of gases ).
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However, Bernoulli himself was the opinion that his own kinetic theory of gases was only a speculation, and likewise he regarded Le Sage's theory as highly speculative.
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Developing the kinetic theory of gases in the case where the gas atoms or molecules experience inter-particle forces ( like the van der Waals force ) is more difficult.
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His main working fields are fluid mechanics, kinetic theory of gases, plasma physics applied in magnetohydrodynamics power generation and propulsion as well as topology and astrophysics applied in cosmology.
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Later works of James Prescott Joule, Rudolf Clausius and in particular Ludwig Boltzmann firmly established the kinetic theory of gases and brought attention to both the theories of Bernoulli and Waterston.
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In 1856 he published a paper on the kinetic theory of gases, thereby becoming a pioneer of statistical mechanics and thermodynamics alongside Rudolf Clausius, James Clerk Maxwell and Ludwig Boltzmann.
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This discovery, along with his earlier work on what would later be recognised as gaseous diffusion, would eventually lead John Dalton and Thomas Graham to formulate the kinetic theory of gases.
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Another theory was the kinetic theory of gases, the basis of which was laid out in 1738 by the Swiss physician and mathematician Daniel Bernoulli in his " Hydrodynamica ".
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In 1905 Albert Einstein published a paper where he studied the physical observation of Brownian motion or movement to explain the seemingly random movements of particles in liquids by using ideas from the kinetic theory of gases.