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In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
The opening sentence or opening line stands at the beginning of a written work.The opening line is part or all of the opening sentence that may start the lead paragraph.For older texts the Latin term incipit ('it begins') is in use for the very first words of the opening sentence.
Turning the engine off instead of idling does save fuel. Traffic lights are predictable, and it is often possible to anticipate when a light will turn green. A support is the Start-stop system, turning the engine off and on automatically during a stop. Some traffic lights have timers on them, which assist the driver in using this tactic.
A common English usage misconception is that a paragraph has three to five sentences; single-word paragraphs can be seen in some professional writing, and journalists often use single-sentence paragraphs. [7] English students are sometimes taught that a paragraph should have a topic sentence or "main idea", preferably first, and multiple ...
Tachometer (left) of a Volkswagen Golf Mk6 passenger car idling at just below 800 r/min.. Idle speed, sometimes simply called "idle", is the rotational speed an engine runs at when the engine is idling, that is when the engine is uncoupled from the drivetrain and the throttle pedal is not depressed.
The advent of concern about fuel economy and emissions had major impacts on engine design. Some of the trade-offs reduced throttle response. Most new cars employ a drive-by-wire system, which includes electronic throttle control and can itself either reduce or increase throttle response (Depending on whether or not it's being employed on a performance car).
The Honker II, a midget racing car, getting a push start at the 144th Wagga Wagga Show. A group of people attempting to push start a motorcycle.. Push starting, also known as, roll starting, clutch starting, popping the clutch or crash starting, is a method of starting a motor vehicle with an internal combustion engine that has a manual transmission, a mechanical fuel pump, and a mechanically ...
The Jane Schaffer method is a formula for essay writing that is taught in some U.S. middle schools and high schools. Developed by a San Diego teacher named Jane Schaffer, who started offering training and a 45-day curriculum in 1995, it is intended to help students who struggle with structuring essays by providing a framework.