The theory of phlogiston (a substance at the root of all combustion) was propounded by the German Georg Ernst Stahl in the early 18th century and was only overturned by the end of the century by the French chemist Antoine Lavoisier, the chemical analogue of Newton in physics; who did more than any other to establish the new science on proper theoretical footing, by elucidating the principle of conservation of mass and developing a new system of chemical nomenclature used to this day.
The primary chemical reactions of methane are combustion, steam reforming to syngas, and halogenation.
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The propellant pair UDMH/N2O4 has a lower potential specific impulse than kerosene/liquid oxygen, but because the RD-270 used the much more efficient full flow staged combustion cycle, as opposed to the simple gas-generator cycle used on the American F-1 rocket engine, the specific impulse of the RD-270 was higher than the F-1.
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Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gearbox and the propeller in one portable unit.
“Then,” continued Roy, “I had just put up our hay for the winter to come when one night, as a result of spontaneous combustion, the hay caught fire, burning the hay, the barn, and everything in it right to the ground.