Tim Barker

Ram Pumps

People are always fascinated by ram pumps. I think partly because they achieve the seemingly impossible task of pumping water to a higher height than the water supplying the pump, and they do it for no added energy input. This is often misunderstood as needing no energy, but even a casual understanding of the laws of thermodynamics tells us this is impossible. You will notice I said no added energy […]

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Permaculture and Managing Holistically

I’ve been wanting to write and post this article for some time but have been hiding behind the excuse that I just don’t have the time. I suspect though, that it has been because what I want to talk about is probably a contentious issue for some and I’m generally a placid soul who doesn’t like to ruffle feathers.

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Rocket Stove – Hot Water!

by Tim Barker The basic unit, minus the rocket stove and piping In my last post, I showed a picture of a wood powered water heater, so now we’ll roll up our sleeves and get into how this was designed. But first a warning! Boiling water is easy to do, but boiling water in a closed container and not blowing yourself up is much trickier — in fact I’ve heard […]

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So Where Does the ‘Appropriate’ in ‘Appropriate Technology’ Come From?

by Bob Corker and Tim Barker, PRI New Zealand (Koanga Institute) So where does the ‘appropriate’ in ‘Appropriate Technology’ come from? To me, it is technology that ‘fits’ well into a place or setting. You’re not further enlightened? Okay, I’ll make some generalizations and go from there. For the ‘technology’ part, I like W. Brian Arthur’s definition, whereby technology is the capture or use of a phenomena for a specific […]

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Rocket Oven Nitty Gritty

by Tim Barker, Koanga Institute The first post on the rocket oven left many with more questions than they started with so this is a follow up to cover some aspects in more detail. It would probably help to re read the first article and my replies to comments as I’m just going to forge ahead with more detail on the design. On my first design I was prepared, even […]

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Rocket Oven! A Permanent Wall Mounted Kitchen Oven

We’re using this awesome rocket stove powered wall oven for all the catering here at Koanga — it gets daily use and we’re loving it! The amount of wood required is minimal, a tiny fraction of what a regular wood fired stove would use. by Tim Barker During our last workshop at the Koanga Institute, we built a rocket stove. Our design brief was very specific in that the stove […]

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Nichole Foss to Give Talk at The Channon (Feb 10, 2012)

What: Nichole Foss talk on the present and future crises Where: The Channon Community Hall, near Lismore, NSW, Australia (and a stone’s throw from the PRI’s Zaytuna Farm) When: 10th of February, starting at 5.30 pm Cost?: Donation at door Nicole M. Foss is co-editor of The Automatic Earth (TAE), where she writes under the name Stoneleigh. She and her writing partner have been chronicling and interpreting the on-going credit […]

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