Demonstration of bottom-filling wine pot and a fairness cup. A bottom-filling pot has no lid and is filled through a hole in its bottom. Yet when it is turned upright its liquid contents do not leak out. A fairness cup will hold a moderate amount of liquid. But when filled too much, all of its contents leak out through a hole in the bottom. www.ChinesePuzzles.org
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Puzzlaholic 1 year ago