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Steam and pistons
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This is not a model railroad question. I'm sure there are many on this forum with an answer to my query. <br /> <br />I've wondered these many decades just how steam generated by a locamotive has the power to push against a piston of a steam engine to which a hundred or more cars are attached. The weight and resistance to move the piston is enormous, I should think. And on many locamotives, the cylinders aren't very large. Just how is a locamotive able to move an inch? <br /> <br />Huge steam pressure has to build inside the cylinder with the piston fighting against the weight of the locomotive and its rolling stockl. So why then doean't the ends of the cylinders blow off? Just what gives the locomotive a boost to get its wheels moving ,and its strength to pull mile-long rolling stock? <br /> <br />I was asked this question several weeks ago and couldn't come up with an answer that satisfied some children because I, myself, never knew the answer. <br /> <br />GGB <br /> <br /> <br />
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