[This article was first published in Army Sustainment Professional Bulletin, which was then called Army Logistician, volume 2, number 4 (July–August 1970), pages 18–21. The text is reproduced as ...

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When the lights go out, it affects everyone. It’s not only the inconvenience of having the TV shut off unexpectedly—a lot of heavy equipment really dislikes having the power disappear suddenly. For ...