My reply was to the "What does it do?" question. Easier to point someone to it than try to explain.
I had to go download the video. It doesn't appear to have any sound. From what I remember, it was more of a watch and learn, rather than a verbal explanation. (But it has been a long time since I've watched that one.)
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"Never ask a World War II history buff for a 'final solution' to your problem!"
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