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neil actually gave me this idea with the topic "can you squeeze water" thx neil! lolis there anything air can go through that water cant? or vise-versa can water go through a crack (etc.) that air couldnt???
Water can enter inside a swimming pool's water, but air don't. 
Quote from: lightarrow on 18/03/2009 16:49:46Water can enter inside a swimming pool's water, but air don't.  There is air dissolved in water: fish would have a hard time breathing if there wasn't. [xx(]