Re: Tree sap question
- From: ®óñ© © ²°¹°-°² <ron@xxxxxxxxxxx>
- Date: Wed, 27 Feb 2008 16:34:19 +0000
On 26 Feb 2008 10:05:36 GMT, nmm1@xxxxxxxxxxxxx (Nick Maclaren) wrote
and included this (or some of this):
In article <62i4vjF23jaobU1@xxxxxxxxxxxxxxxxxx>,
Broadback <wen@xxxxxxxxxxxxxxx> writes:
|>
|> Just curious. As I understand it the evaporation of moisture is what
|> draws the sap from the toots up the tree. Does this mean that the sap
|> does not rise until the leaves unfurl? If so where do the leaves obtain
|> the energy to be "kick started"?
'Tain't so. Sounds plausible, until you think about it. If that
were so, how would the sap reach the top of a 50' tree? Even a
vacuum will raise water only 30'.
Then try Osmosis. It's very powerful, and not limited to 30'
http://en.wikipedia.org/wiki/Osmosis
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