Rocket Mass Heater Book - -Our newest edition- - More than a second edition to the groundbreaking Rocket Stoves to Heat Cob Buildings, the new book Rocket Mass Heaters, Superefficient Woodstoves You Can Build (And Snuggle Up To) is the most comprehensive book available on the subject of Rocket Stoves. Here's a superefficient wood fired heater you can build for yourself in a weekend for less than a hundred dollars. This book explains in detail exactly how to build one, then how to use it in a range of applications. We discuss materials, where to find them, what to pay and how to make use of found and recycled parts.
5 DIY Earth-Friendly Cooking Devices Capturing HEAT Five Earth-Friendly Cooking Technologies and How to Build Them By Dean Still and Jim Kness Aprovecho Research Center Make A Hobo Tin-Can Portable Rocket Stove If adorably quirky perky BBC gardener Alys Fowler can scavenge veggies to throw in her various garden allotment campfire contraptions, well then, so can I. My bigger garden is a bit of a walk from the house and sometimes I get a hankering to make a cup of tea or herby stew before I’m done with the day’s tasks. Any excuse for a little live-fire feasting. 101 Facts That Should Make You Hopeful About the Future of Food This week, Food Tank is highlighting stories of hope, innovation and success, in creating a better food system. From women’s land access in Chad and urban green spaces in Australia to chefs in the United Kingdom and the U.S. implementing local, sustainable food sourcing—there are hundreds of innovations giving us hope about the future of food. Food Tank is featuring 101 bright spots in the food system that we hope will inspire eaters, businesses, researchers, scientists, funders, donors and policy makers to create—and support—a more sustainable food system. 1. Biologist Roger Leakey’s book, Tree of Life, highlights the ability of trees to help feed the planet. Through agroforestry—growing trees along with crops—communities can increase crop productivity and overcome global hunger and poverty, contributing to the livelihoods of more than 1.6 billion people.
Haidinger's brush: the unknown sense "I can see it particularly clearly in the twilight when I stare at the zenith; the whole sky seems to be covered by a network, as it were, and everywhere I look I see this characteristic pattern. It is very pleasing to be able to determine the direction of polarization without an instrument in this way, an even obtain an estimate of its degree" Minnaert, Light and Color in the Outdoors The eyes of men (AND women) are not designed to distinguish between different types of polarization, contrary to insects, cephalopods, many amphibians, fish, and other animals, for which nature possesses a different class of "colors" (but even common colors do not mean the same to everyone). However, a small quirk in the structure of the human eye gives us (by accident) the ability to tell apart different states of polarization. Thanks to this small aberration or "defect" of the eye we are not completely polarization-blind.
I Love Cob! ∞ Construction of a Rocket Stove View photos here » I experimented with the plans that Ianto Evans and Leslie Jackson prescribed in the first draft of ‘Rocket Stoves to Heat Cob Buildings: How to Build a Super Efficient Wood Fired Heater‘. I gotta tell you that it didn’t sink in the first time I read it. I understood it in principle, but it just seemed counter intuitive.
DIY Super Efficient Chest Fridge Hack Chest fridge Using vertical doors in refrigeration devices is an act against the Nature of Cold Air. Understanding and cooperating with Nature rather than acting against it leads to much better efficiency. My chest fridge (Vestfrost freezer turned into a fridge) consumes about 0.1 kWh a day. It works only about 2 minutes per hour. At all other times it is perfectly quiet and consumes no power whatsoever.
Old Oil Barrels – Build A Rocket Stove 10 Mar 2006 Top Five Things to Do With Oil Barrels When There’s No More Oil To Fill Them – #4. Build a Rocket Stove This is possibly the single most wonderful things you could do with oil barrels. How about converting them into the most efficient form of space heating imaginable? All for just a few quid? Amazing low-tech harvester collects water from even the driest of air Even in places where there’s a severe lack of water, there’s one thing every place has. Air. And even in the most arid of climes, there’s moisture in the air, even if it’s not enough to be felt on your skin. So there’s water everywhere, it’s just a matter of getting to it, and that’s what Edward Linnacre did with his brilliantly simple low tech air harvester called the Airdrop. With a deceptively modest design, Airdrop filters hot environmental air through a turbine, feeding it through a copper tubing system—with copper wool to maximize surface area—and into the earth where it cools and releases moisture.