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Russell Duffy wrote:
OK, make me look it up :-) Apparently, they stop the valves from opening, rather than leaving them open. I couldn't find anything that gave details of exactly what point in the sequence they stop the valves, so the cylinder could either be full of air (silly and wasteful of power), empty of air (would cause vacuum that would be as bad as the compression force), or perhaps somewhere in between.
Other than friction losses, you'll get back everything you put into compressing the gas in the cylinder, Rusty. The process will be totally elastic.
--
This is by far the hardest lesson about freedom. It goes against
instinct, and morality, to just sit back and watch people make
mistakes. We want to help them, which means control them and their
decisions, but in doing so we actually hurt them (and ourselves)."
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