Anti-de Sitter space bell. It might be described as being the "opposite" of the surface of a sphere, which has a positive curvature. General relativity is a theory of the nature of time, space and gravity in which gravity is a curvature of space and time that results from the presence of matter or energy. Energy and mass are equivalent (as expressed in the equation "E" = "mc"), and space and time can be translated into equivalent units based on the speed of light ("c" in the "E" = "mc" equation). A common analogy involves the way that a dip in a flat
Benedict–Webb–Rubin equation empirical data for a reference fluid. Other fluids then are described by using reduced variables for temperature and density. Benedict–Webb–Rubin equation The Benedict–Webb–Rubin equation (BWR), named after Manson Benedict, G. B. Webb, and L. C. Rubin, is an equation of state used in fluid dynamics. Working at the research laboratory of M. W. Kellogg Limited, the three researchers rearranged the Beattie–Bridgeman equation of state and increased the number of experimentally determined constants to eight. where formula_2 is the molar density. A modification of the Benedict–Webb–Rubin equation of state by Professor Kenneth E. Starling of the University of Oklahoma: where formula_2