Subject: Hating mistakes and carrying bubbles
Date: Tue, 09 Mar 2000 22:37:23 -0600
From: Anne Marie Jurkash

I hate to bust your son's bubble, but doesn't David's solution to the hour glass problem require not ONE but TWO turns of the hourglass. First, he turns the small one after it empties, and second, he turns the big glass. I believe his solution requires 2 turns. One does not appear to be an "absolute minimum". Thank you!
Anne Marie Jurkash

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