Quote:
Originally Posted by panhead
WOW,you must just be seeing what you want to see in that scene,he walks downhill the entire way to the water source,
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No he doesn't. Watch it again. As he approaches the culvert, he is climbing
uphill. He's approaching from the
downstream end of the culvert, the end that the water is flowing out of. That means he is
downhill from the source. On his way back to the patch, yeah - he climbs a couple of upgrades. But the outlet of his line is still downhill from the source, so he's just using gravity the entire way.
Quote:
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How can you possibly not see evidence the water being pushed over an uphill grade in the 2nd garden at the end of that video,follow the terain closely & you'll see.Water will flow uphill if the driving force is strong enough to overcome the grade,its not rocket science.
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Two things. First of all, yes - water will flow uphill if you have enough force to push it, but the current of a river flowing into an open bucket is not enough force. Second thing - yeah, the water in the video is flowing over an uphill grade, but it is still way, way downhill from the source. That means gravity is providing the force. The weight of all the water that is in the line uphill from that slope is providing enough force to push the water up the hill, but if that uphill slope was higher than the source, it would not be enough.
What this dude is proposing - that the current of a river flowing into an open bucket will provide enough force to push water a couple of feet uphill - is just absolutely impossible. Unless there's a significant drop in the elevation of the river, and he's using the force of a waterfall or steep rapids (which may be possible, but he doesn't mention it), it's just not possible. Period. Water is just too heavy; the weight of it will pull it back down and overcome the relatively slight pressure of the current.
Look, you seem like a really decent guy, and i don't want to get personal or argue with you. But what you're saying just doesn't work. You're right; it's not rocket science. It's a lot more basic than that. Water, unconfined, will follow the path of least resistance. It would rather just flow back out the top of the bucket than fight its way uphill, against gravity, for a foot or more. Water weighs... what... about 8 pounds per gallon, right? The current of a river just doesn't provide enough energy to lift water that high.
03-03-2008, 08:58 AM
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