primary combustion
111Ecology — For other uses, see Ecology (disambiguation). Ecology …
112Space Shuttle — STS redirects here. For other uses, see STS (disambiguation). This article is about the NASA Space Transportation System vehicle. For the associated NASA STS program, see Space Shuttle program. For other shuttles and aerospace vehicles, see… …
113Combined cycle — Thermodynamics …
114Modern history — Modern and Modern Age redirect here. For other uses, see Modern (disambiguation) and Modern Age (disambiguation). Human history This box: view · talk · …
115Oxygen sensor — Contents 1 Automotive applications 1.1 Function of a lambda probe 1.2 The probe …
116international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
117Engine — This article is about a machine to convert energy into useful mechanical motion. For other uses of engine, see Engine (disambiguation). For other uses of motor, see Motor (disambiguation). A V6 internal combustion engine from a Mercedes car An… …
118Antioxidant — Model of the antioxidant metabolite glutathione. The yellow sphere is the redox active sulfur atom that provides antioxidant activity, while the red, blue, white, and dark grey spheres represent oxygen, nitrogen, hydrogen, and carbon atoms,… …
119Ozone — For other uses, see Ozone (disambiguation). Ozone …
120Christiaan Huygens — Born 14 April 1629 …
