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Reply to "Counter Runs Backwards"

If that counter is the one I think it is, check to see what the other digits are doing. Liza Recto was attempting to measure a marathon in southern Maryland. She wondered why the ones digit kept going backwards-- 0,9,8,7 etc. But once it completed a revolution, the tens digit would advance by one. I wonder if that one wheel was intended for a counter that turns the other way, or is it from a countdown timer of some sort?
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