[Scpg] How to make water go uphill with keyline?
Permacltur at aol.com
Permacltur at aol.com
Fri Feb 8 16:20:01 PST 2008
You are missing the point, which was a reply to a question about someone's
claim that keyline cultivation moves water uphill. It does not and I explained
what it does do and the nature of the confusion.
I said that water does not flow uphill without application of external
energy. The EXAMPLE was a pump. I could have given as an example a tsunami
hitting an island, indeed any wave as the water rises, the creation of clouds, the
example you gave, etc. Someone else gave the one exception I didn't think
of, which is capillary action. In soil, this will move water laterally about 2
feet in soil with a strong clay component or about one foot in sand. So the
diameter served by a drip point, moving water laterally, is 2 to 4 feet,
depending upon the composition of the water. Of course, this is utterly
irrelevant to answering the original post about keyline moving water to ridges from
valleys.
Dan Hemenway
In a message dated 2/6/08 11:45:41 AM, cory8570 at yahoo.com writes:
> Water does observably go uphill in nature via a narrowing channel, etc.
> There are natural patterns that force water uphill at least for short
> distances. It depends on the vectors and forces applied. One could call a running
> stream a "pump" but I would call it a running stream. You can use the natural
> force of falling water and compression to defy gravity. As to how practical
> or useful this may be, I will leave that to people with more experience. I
> recall reading about an ancient irrigation system that used this principle,
> but I don't recall details. Anybody else have any data on such systems?
>
> Cory
>
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