送交者: cornbug 于 2012-06-18, 12:20:47:

回答: Archimedes paradox. It works as long as 1kg water can surround 2kg wood 由 ASH 于 2012-06-18, 11:51:44:

• not the depth, the volume submerged (无内容) - pgss (0 bytes) 2012-06-18, 18:36:34 (670113)

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