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The Largest Ancient Man Made Canal System on Earth
earthepochs.blogspot.co.uk ^ | April 3, 2014 | johnmjensen jr

Posted on 01/03/2015 4:10:32 PM PST by Fred Nerks

From my Free Web Book 'AncientCanalBuilders.com'

The largest wide-array man made (or at least non natural) structure in the world is in fact an ancient terra formed systems of agricultural-aquaculture canals in Northwestern Botswana and Northeastern Namibia, north of the Kalahari Desert in Southern Africa. Obviously quite ancient, the canal systems no longer provide free flowing water throughout its 105,000 mile array, but many sections show obvious intention to provide cross sectional irrigation.

These canals are too evenly spaced over too large an area to be any kind of natural formation. Based on entry and exit points, it is readily apparent this system is a very large, controlled agronomy array and/or aquaculture system. Its age is defined by the overgrown nature of the canals, as well as some areas that are covered over with drift and sand erosion.

The entire complex covers an area about equal in size to the State of Arizona in the USA. The canals are an integrated system of apparent irrigation and agricultural (and probably aquaculture) design. The system is about 350 miles in width and about 300 miles in depth. (For the remnants still visible.) This system represents roughly 67 MILLION acres of sustainable agriculture. Given the sophistication of design, it is entirely plausible to assume an above average yield, i.e. feeding well over 90 persons per acre on an annual basis. The system may or may not have provided a sustainable aquaculture (marine farming) environment. I have no reason to suspect that it did not.

Given the size and scope of this complex, (canals are about 1 mile apart on average) and collectively are roughly 350 X 300 miles in a rough rectangular format. (At least the observable parts) There could be, and probably is, much more to this complex than what is visible to the naked eye. Right now, we can identify ancient cultivation of roughly 105,000 square miles.

One square mile = 27,878,400 square feet, or 640 acres, so the entire complex had a sustained producing land mass of (640 acres x 105,000 square miles) or > 67,200,000 acres. (That is 67 MILLION acres)

One linear mile of canal had (750' width x + >12' depth x 5,280') = 47,520,000 cubic ft of water per linear mile.

Entire canal length (105,000 miles x 47.5 million cubic ft per mile) = 5,000,000,000,000 (That's 5 TRILLION) cubic feet of water in the canals. It would be an incredible waste of time and effort to irrigate >105,000 square miles of sustainable agriculture land, and not use the 5 trillion cubic feet of water circulating in the canals for aquaculture farming. I don't think the builders were that stupid.

Different estimates of the numbers of people this sustainable system would supply varies widely, though it is generally accepted that a system like this, if properly managed would provide a complete annual diet for somewhere between 60 to 120 people per acre. Which means this system was in fact providing food for an average of about 5 Billion people.

This array is in fact the largest non natural artifact on the Planet. It can be clearly viewed unaided from the International Space Station at roughly 230 miles up, which cannot be said for any other non natural feature on Earth.

I would suggest that depth of canal(s) must have been significant to compensate for general slight variations in elevation. There seems to be an average elevation variation of about 60', sometime more, and sometimes less.

Your comments are welcome, or you can contact me here:

johnmjensenjr@gmail.com 321-614-5040

First brought to my attention by Gary Schoening Here is his original Vimeo post: http://vimeo.com/64351951


TOPICS: Chit/Chat
KEYWORDS: africa; agriculture; ancientcanals; animalhusbandry; botswana; canals; godsgravesglyphs; irrigation; kalahari; kalaharidesert; namibia; remotesensing
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To: Fred Nerks; All

What do you think of the thought I believe I saw elsewhere in these comments that these were intended as a way to conserve water? Is there any sign that the center of each circle is lower than the edges? Is there any sign of planting occurring in the center? Also, would this just be a good way to prevent rapid runoff if this area is subject to rare but intense rains?
I once read of agricultural practices in a place (I think the Azores or Canaries) where somewhat funnel shaped pits were made, perhaps 8 to 10 feet in diameter so that a plant could be set at the bottom to grow with maximum water and minimum wind exposure.


201 posted on 01/08/2015 11:28:56 AM PST by gleeaikin
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To: Fred Nerks

Sounds interesting. More or less when is this suggested to have occurred? Also, would these blacks have been Asian Negritos or Africans, or no attempt to differentiate made to date? I remember seeing a cup in an Epcot display described as Central American, but it looked seriously Japanese to me. I also remember reading about linguistic traces around Peru similar to Central American tribal language, don’t ask me which or when. Today many underestimate the capacity of earlier man to travel.


202 posted on 01/08/2015 11:39:41 AM PST by gleeaikin
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To: Fred Nerks; All

Just looked at this and # 186 again and may be answering my own question. Looks like recent rain has cracked and dried in the furrow, also plants are growing. Someone’s recent attempt to regrow the area?


203 posted on 01/08/2015 11:43:52 AM PST by gleeaikin
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To: gleeaikin

I really have no idea, the entire phenomenon is simply too huge to be what we think of as agriculture.


204 posted on 01/08/2015 12:13:04 PM PST by Fred Nerks
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To: gleeaikin
...Today many underestimate the capacity of earlier man to travel.

And that, I think is the key. The Olmec giant heads for example, are negroid

see images

205 posted on 01/08/2015 12:17:18 PM PST by Fred Nerks
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To: no-to-illegals

To an Aussie, it seems that most of what you get to read, are lies. So all you can do is keep an open mind. Sometimes the truth reveals itself.


206 posted on 01/08/2015 12:57:25 PM PST by Fred Nerks
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To: Fred Nerks

yes, Fred, We all shall keep an open mind in spite of the lies ... May Freedom Live. May Freedom Stand Upright! May our Lord walk with the sane that want to keep Freedom. May my mind close around Freedom.


207 posted on 01/08/2015 1:00:05 PM PST by no-to-illegals (Scrutinize our government and Secure the Blessing of Freedom and Justice)
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To: no-to-illegals

And may that freedom include the freedom to speculate!


208 posted on 01/08/2015 1:03:07 PM PST by Fred Nerks
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To: Fred Nerks

There are enough Laws and that is no speculation.


209 posted on 01/08/2015 1:10:12 PM PST by no-to-illegals (Scrutinize our government and Secure the Blessing of Freedom and Justice)
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To: WhiskeyX; pepsionice

What you think you see in the Google satellite views are illusions which disappear when you look at them from closeup on the ground.>>>>>>>>>>>>>>

What you see is not there?

Sounds like a Jedi mind trick, LOL.


210 posted on 10/30/2019 2:27:51 AM PDT by Candor7 ((Obama Fascism)http://www.americanthinker.com/articles/2009/05/barack_obam_the_quintessentia_1.html)
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To: firebrand

read later


211 posted on 10/30/2019 2:48:09 AM PDT by firebrand
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