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New Theories / Re: How do Trees Really lift Water to their Leaves?
« on: 25/04/2005 12:54:32 »
What exactly does figure 9 show?
I am not really convinced that gravity can have much affect on osmosis as osmosis will move water from an area of low salt (or other things which won't go through the membrane) concentration to one of high salt concentration whether it be up down or sideways.
I don't understand the arguement above, if the salt is above the membrane, gravity can't cause it to move below the membrane as the membrane is by definition impermiable to the salt...
I am not really convinced that gravity can have much affect on osmosis as osmosis will move water from an area of low salt (or other things which won't go through the membrane) concentration to one of high salt concentration whether it be up down or sideways.
I don't understand the arguement above, if the salt is above the membrane, gravity can't cause it to move below the membrane as the membrane is by definition impermiable to the salt...