KNOWLEDGE
Can You Answer These Engine Questions If We Give You a Hint?
7 Minute Quiz 7 Min
Torrance Grey
6 Min Quiz
Has any invention -- OK, short of the wheel -- changed human history quite so much as the engine? Consider its history: After millennia of using strong animals like horses and oxen to pull vehicles, or to power other forms of machinery, humans began dreaming of machines that would power themselves. They didn't, though, agree on what kind of fuel might power the earliest engines. One early effort used hydrogen (an idea we've come back to as fossil fuels lose their appeal). The first winner, however, was steam -- with coal being the raw fuel that boiled the water. Later, it was mainly a German, Karl Benz (his last name might be familiar) who was responsible for the ultimate choice of petroleum fuel (that's gasoline, to us everyday people) to power what became known as the internal combustion engine. "Internal combustion" means that the vehicle or machine has no external power source -- it's essentially a little power plant all its own.
Today, the internal combustion engine fuels not just cars but airplanes that take humans around the world in a matter of hours, the rockets that have sent us to space, and a variety of essential machines. Are you ready to find out how much you know about this vital invention? Our quiz is mostly on automobile engines, but not entirely -- we've slipped in a few questions about aviation and spacecraft engines. Test your knowledge now!
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