5JeepsAz
Well-Known Member
Wait a second. So it's all bullshit? Dang it.NASA’s online “Dictionary of Technical Terms for Aerospace Use” considers the two terms synonyms. But if an old-school paper dictionary is more your speed, I’ve got an American Heritage College Dictionary in front of me, and it defines engine as: “A machine that converts energy into mechanical force or motion.” It also defines motor as: “Something, such as an engine, that produces or imparts motion” or “A device that converts any form of energy into mechanical energy, as an internal-combustion engine.”
The dictionary specifically mentions the internal combustion engine as a type of motor.
The term for “engine” in other languages is actually “motor.” For example, if you translate the term “diesel engine” into German, you’ll notice that their word for it is “Dieselmotor.” Plus, if you look at any old advertising for American car companies at the turn of the 20th century, you’ll likely see the term “motor” used more often than “engine.” (Not to mention, we call a bicycle with an internal combustion engine a *motor*cycle).
A motor is a machine that converts other forms of energy into mechanical energy and so imparts motion.
An engine is a motor that converts thermal energy to mechanical work.
(from wordnet - PRINCETON University wordnetweb.princeton.edu )
In one of MIT’s “Ask An Engineer” columns entitled “What’s the difference between a motor and an engine?” the author talks with Mary Fuller, an MIT literature professor, about the history of the two terms. The story says “motor” comes from the Latin term movere, which means “to move,” and that—while it initially referred to the actual force causing something to move, it was later used in reference to “the person or device that moved something or caused movement.”
In the early 19th century, the meanings of motor and engine had already begun to converge, both referring to a mechanism providing propulsive force. “The first recorded use of ‘engine’ to mean an electrical machine driven by a petroleum motor occurs in 1853,” says Fuller.
So you have a motor in your car if it's gas, but you don't have an engine in your car if it's electric.
That's according to language experts and engineers.
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