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[29] [6] The equation varies depending on the units and approximations used, but in its simplest form is given by: [30] = where: EBAC is the estimated blood alcohol concentration (in g/L) A is the mass of alcohol consumed (g).
The combustion of fossil fuels supplies most of the energy to these engines, with a significant fraction from nuclear fission and some from renewable sources. The modern steam turbine , invented by Sir Charles Parsons in 1884, currently generates about 80% of the electric power in the world using a variety of heat sources.