Recent content by Le Jergens

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    Limit on mechanical & electric energy conversion efficiency

    Ok, quick response before i get back later on. I am possessed of only a high school education (and not a very good one at that), so I know little of science, or any other academic matters. I will say thanks, to everyone who responded, I very much appreciated your input. And just to clarify, I'm...
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    Limit on mechanical & electric energy conversion efficiency

    So there are no *fundamental* physical laws against 100 percent conversion, but great practical barriers to it, correct? Ok, just a little more I want to know: what is the most energy efficient mechanical-to-electrical engine? And what is the most efficient electrical to mechanical engine? I...
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    Giant railguns recycling their own energy....in space

    Hey Ryan, I created another thread in the General Engineering forum titled "Limit on mechanical & electric energy conversion efficiency". Be nice if you could drop in and praise my question so that I can avoid sounding like a lone ignoramus :D
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    Limit on mechanical & electric energy conversion efficiency

    I regret to say that I know little of engineering, but, to make a long story short, I'm nagged by two questions about energy conversion efficiency. There is a thread i made titled "giant railguns recycling their own energy in space" in the science fiction & fantasy forum here that explains my...
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    Giant railguns recycling their own energy....in space

    I managed to get a copy from the library, and I looked up the passage, but I'm not sure how much I'm legally allowed to quote verbatim. I did that once a while back on a different board with a different book and they deleted it. The passage relevant to this topic would be less than about two...
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    Giant railguns recycling their own energy....in space

    True, something like that could work. One could recover some energy in such a manner. But i just can't get past the alleged level of efficiency stated in the book. That's what still nags me; as far as i remember, he literally said that the amount of energy "recaptured", or "recycled", would be...
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    Giant railguns recycling their own energy....in space

    thanks for your response, Ryan. I'm going to try to get the book from a local library if they have it, so that I can confirm the precise details. But its a rare title and it might not be in-stock. Wish me luck :) In Any case, I know the logistics of such a device are staggering in numerous...
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    Giant railguns recycling their own energy....in space

    There was a non-fiction book published a few decades back called "The Millennial Project", detailing a grandiose plan of setting humanity from current civilization into a thriving, space faring one within the next one thousand or so years. Its been so long, and I lost my copy of it, but I swear...
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    Water all around when air stays upside down

    I'm not sure I understand exactly how or why an upside down container filled with air does not then become filled with water when submerged in it. I make the following inquiry: assuming the integrity of the material that the container is made out of, and the water itself not being deep enough...
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