The internal combustion engine is being used today in thousands of different products around the world today. From automobiles, to oil pumps, to generators for houses. Different forms of the engine are being used, like the 2-stroke and the 4-stroke engines.

Basically, a 4-stroke works like this: 1.) The intake valve opens in the piston and allows a gas/air mixture to enter the cylinder. 2.) When the mixture is completely in the cylinder, the crankshaft compresses, or smashes, the mixture and ignites it with the sparkplug. 3.) The explosion from the mixture, around 3 tons of force, propels the crankshaft back down, providing the kinetic energy. 4.) The Exhaust valve opens and releases the spent mixture's components. Harold T. Glenn, in his book Exploring Power Mechanics states that "this sequence of events is known as the 4-stroke cycle because of the four strokes involved." ***

Marshall Brain, in his article in "How The Car Works" states that the concept is similar to a the mechanics of a cannon. Load the cannon with powder, put a cannon ball

The engine has many more new innovations that are transpiring, like the electric engine. Others that are possible are the nuclear engine and the hydrogen engine. Both are possible forms of power houses but are still underdeveloped and difficult to build. Maybe with more sophisticated tools and better technology we will be able to mass produce these kinds of engines, and revolutionize the United States.

I believe that the engine has been one of the most pivotal innovations of, I'd say, the world. It has increased that amount of efficiency that we can produce food, transport victims of accidents, fly people around the world, and trim our hedges. It has helped us in a variety of ways. But, like most things in this world, with the good things come the bad. It's a matter of this: Do the good things outweigh the bad ones? In my opinion, yes. The benefits of the internal combustion engine have outweighed the negative ones. I have no doubt that, if the continuing use of fossil fuels will continue to depleat the ozone and increase global warming.

on the top, and ignite the powder. The resulting explosion is similar to what happens in an engine . ***

Some motor-crossers speed their dirtbikes around the motocross track with special kinds of engines called the 2-stroke engine. The 2-stroke differs from the 4-stroke in that every time the piston reaches the top of the cylinder, it fires.

Some common words found in the essay are:
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Approximate Word count = 1390
Approximate Pages = 6 (250 words per page double spaced)