Fall 2012 Adobe Classes With Kurt Gardella

I’ve taken three adobe classes with Kurt Gardella–and he built the amazing earth oven in our backyard. Kurt has a couple of classes coming up and I thought I’d help get the word out. He’s a great teacher. From an email he just sent: Dear adobe friends, Intro Fall is a great time for natural plastering and interior finishing work. Interior mud plastering and installing an earthen floor finish the normal adobe house constr...

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Erik Speaking at Maker Faire

I’m very excited to announce that I’ll be speaking at the Bay Area Maker Faire on Saturday May 19 at 6:30 pm on the Maker Square Stage (located in the Homegrown Village). The talk I’m giving will be about the appropriate tech projects we’ve been up to around the Root Simple compound–our new chicken run, greywater, solar cooking and Mediterranean edible gardening. I’d love to hang out, after the talk, with any...

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Our Keyhole Vegetable Bed: What Worked and What Didn’t Work

This is what our keyhole bed looked like yesterday just before I fed the remaining vegetables to our chickens and the compost pile. Ignore the large pot–that’s a future solar powered fountain that will be incorporated in a new vegetable garden we’re working on. Here’s what the keyhole bed looked like just after I installed it back in October. Note the compost repository in the cente...

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The Elf and Ethics

The Elf is a kind of aerodynamic, electric assist tricycle with solar panels to charge the batteries. It’s a type of vehicle, somewhere between a bike and a car, that a number of inventors have tinkered with over the years. Good arguments exist for and against this type of transportation. On the one hand it uses far fewer resources than an automobile. But one could also argue, as does the owner of a bike shop in this video, that we̵...

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Post Petroleum Lecture

...xt one! From Khan’s announcement: Albert Bates is a permaculture and appropriate technology instructor at the Eco village Training Center at The Farm community in Summertown, Tennessee, inventor of solar cars, pedal flour sifters and cylindrical tofu presses, and author of eleven books, including Shutdown: Nuclear Power on Trial (1979) and Climate in Crisis: The Greenhouse Effect and What We Can Do (1990). His Post-Petroleum Survival Guide...

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Post Petroleum Lecture – a reminder

...m Survival Guide and Cookbook. To reserve your spot go to www.sustainablehabitats.org Bates will be speaking at the Audubon Center at Debs Park on Saturday March 24th as part of the 2007 Sustainable Habitats Lecture Series. Here’s the announcement again: Albert Bates is a permaculture and appropriate technology instructor at the Eco village Training Center at The Farm community in Summertown, Tennessee, inventor of solar cars, pedal flour...

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Dome Building

...Conic Shelter™. Henderson has devised an attractive not-really-a-dome form that works with, rather than against the ubiquitous 4 x 8′ sheet of plywood. The Zome dome is a geometrical form that also works better with standard building materials. It’s most popular in rural France, but there are numerous examples in North America, as well as a children’s toy that looks like fun. Passive solar guru Steve Baer is responsible both f...

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SunCalc: A Sun Trajectory Calculator

...u can see sun positions at sunrise (yellow), specified time (orange) and sunset (red). The thin orange curve is the current sun trajectory, and the yellow area around is the variation of sun trajectories during the year. The closer a point is to the center, the higher is the sun above the horizon. The colors on the time slider above show sunlight coverage during the day. I can see SunCalc being useful for laying out a garden, window and sola...

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What the Internet Will Look Like After the Zombie Apocalypse

...open source software on to it, scatter them around town and you’ve got a wireless data network. Note that the routers in this configuration are communicating with each other. To hook your laptop into the network you have to connect it via an Ethernet cable to one of the nodes or set up a wi-fi network at a node. The routers can even be powered by small 12 volt batteries or solar panels. To be clear, this is a wireless network that is indep...

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