ohain whittle compression diffusion vaclav joachim turbine epochal movers pabst turbines consideration 1890s combustion lengthy commercialization genghis hans smil cargo sail rehabilitation globalized propel rudolf compares manufactured diesel khan

tons sparking gradual flat airplanes steam agreement globally receive integrated continent engines goods invented globalization commerce resulted jet von pioneer 1930s fly affairs advances efficiency billions ships materials

prime developments missing processes engine structure unlikely claims examples able shifts perfect gas non frank internal hours raw scale creation range designed massive planet technical attention technologies todays possible