Published February 25, 2013. It's a wrap on the Oscars! Django Unchained was the night's first winner, scoring a Best Supporting Actor prize for Christoph Waltz. The film also earned writer/director Quentin Tarantino a nod for Best Original Screenplay.
Spontaneous combustion. Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, autoignition.
In spark-ignition internal combustion engines, knocking occurs when combustion of the air/fuel mixture in the cylinder. starts off correctly in response to ignition by the spark plug, but one or more pockets of air/fuel mixture combust. outside the envelope of the normal combustion process.