
The second workshop that I’ll be doing involves aquaponic systems. Until about a year ago I was completely new to aquaponics, but then a friend invited me to join a club of people interested in building an aquaponic system. Since then I’ve become a huge proponent of the use of such systems. To put it mildly, the earth is on the edge of a huge food crisis, not always caused by simply not being able to grow enough, but sometimes caused by an inability to distribute what we do have (Seriously y’all, stop throwing away so much food). For evidence of this I recommend typing in Venezuelan food crisis into wikipedia and get ready to feel some bubbles of anger and frustration. In case you didn’t know, aquaponics systems allow for the growth year round of many times more vegetables and other plant life. These systems also allow for the cultivation of fish which use less food to become protein sources than any other animal. In addition to this fact, it is predicted that most of the population growth over the next few decades will be in developing countries, including Colombia. What many of us (meaning those who are worried about the global food trend) are hoping to do, is help countries like Colombia leapfrog over the past couple of decades of inefficient and polluting agriculture that we had in the U.S. and move straight to this sort of agriculture that allows for low transport distances, one tenth as much water for a greater quantity of crops, and a healthy efficient protein source that’s not dumping CO2 and methane into the atmosphere***. Also, it would be great if this technology could find its way across the border to Venezuela. The closest thing to this system I’ve seen here is a hydroponics system in the Botanical Garden.
After a brief dalliance where I decided to see if I could break chemistry in order to build a cheap electrodialysis system (still want to see if I can do this), the group and I have voted on making a crank generator capable of charging cellphones and other USB powered devices. While C-innova here made solar chargers only a few weeks ago, they quickly realized that this system doesn’t work in Bogota, mostly because I’ve only seen the sun once or twice since I’ve been here. The other idea is to do this at a much lower cost and with a greater degree of customizability. Basically, I will make the circuit and a diagram of how one would make that circuit themselves and how to connect it to a hand crank, or a bike, or whatever suits the fancy of those who want to use it. It hasn’t been terribly easy because a lot of the components and items I take for granted in the U.S. have to be shipped here, usually from the U.S. or China. I’ll also draw up a couple of fun educational circuits that these guys can use when I’m not around, small Van Der Graaf generators and little games to teach circuit logic. Maybe we could make a sort of obstacle course out logic gates? I’ll have to think about it. In any case, it’s nice to have an objective and a course to pursue. For further rants about the state of agriculture and bizarre political opinions, tune in next week to Maddy has a headache from trying to learn as much spanish as possible over only a few weeks and has a tongue that seems to no longer be able to form syllables.
*I nicknamed this argument after the section titled, “The Grand Inquisitor” in “The Brother’s Karamazov.” Somehow it is held up as one of the best arguments against religion even while the entire book is held up as one of the greatest arguments for religion. It’s worth reading.
**One Example This is just one article on one idea on a very complex subject, but it is far from the only one with this belief.
***For further information I recommend google or this fantastic book: ”Aquaponic Gardening: A Step-By-Step Guide to Raising Vegetables and Fish Together”, by Sylvia Bernstein
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