“Putting the pieces together, our national battery occupies a volume of 4.4 billion cubic meters, equivalent to a cube 1.6 km (one mile) on a side. The size in itself is not a problem: we’d naturally break up the battery and distribute it around the country. This battery would demand 5 trillion kg (5 billion tons) of lead. A USGS report from 2011 reports 80 million tons (Mt) of lead in known reserves worldwide, with 7 Mt in the U.S. A note in the report indicates that the recent demonstration of lead associated with zinc, silver, and copper deposits places the estimated (undiscovered) lead resources of the world at 1.5 billion tons. That’s still not enough to build the battery for the U.S. alone. But even then, we aren’t done: batteries are good for only so many cycles (roughly 1000, depending on depth of discharge), so the national battery would require a rotating service schedule to recycle each part once every 5 years or so. This servicing would be a massive, expensive, and never-ending undertaking.” Read more: A Nation-Size Battery.
Build a Solar Powered (Interior) Kitchen
Solare Brücke is an organisation that promotes the distribution of solar thermal technology, both in developing countries and in the first world. They offer detailed construction manuals, which can all be downloaded for free.
One example is the Scheffler-Reflector (see the picture on the right): “To make cooking simple and comfortable the cooking-place should not have to be moved, even better: it should be inside the house and the concentrating reflector outside in the sun. The best solution was a eccentric, flexible parabolic reflector which rotates around an axis parallel to earth-axis, synchronous with the sun. Additionally the reflector is adjusted to the seasons by flexing it in a simple way.”
The Scheffler-Reflector can be built in steel or aluminium, and there are additional manuals available for the mechanical tracking system, a stove and a baking oven. There are also plans for a solar tunnel dryer and a smaller solar cooker. Find all manuals at Solare Brücke. Thanks to Eric Blair. Related: The bright future of solar powered factories.
Community-Based Health Care
“Hesperian is a non-profit publisher of books and newsletters for community-based health care. Our first book, Where There Is No Doctor, is considered to be one of the most accessible and widely used community health books in the world. Simply written and heavily illustrated, Hesperian books are designed so that people with little formal education can understand, apply and share health information. Developed collaboratively with health workers and community members from around the world, our books and newsletters address the underlying social, political, and economic causes of poor health and suggest ways groups can organize to improve health conditions in their communities. Hesperian publishes all of our books in English and Spanish and our open copyright policy facilitates adaptations and translations into many other languages. Our books are available for purchase or free download.” Via The Survivalist Blog.
The Natural Limits of Science
“I know it’s utter heresy even to hint at this, but I’d like to suggest that science, like logic before it, has gotten pretty close to its natural limits as a method of knowledge. In Darwin’s time, a century and a half ago, it was still possible to make worldshaking scientific discoveries with equipment that would be considered hopelessly inadequate for a middle school classroom nowadays; there was still a lot of low hanging fruit to be picked off the tree of knowledge. At this point, by contrast, the next round of experimental advances in particle physics depends on the Large Hadron Collider, a European project with an estimated total price tag around $5.5 billion. Many other branches of science have reached the point at which very small advances in knowledge are being made with very large investments of money, labor, and computing power. Doubtless there will still be surprises in store, but revolutionary discoveries are very few and far between these days”. A quote from John Michael Greer.
The Agricultural Building and Equipment Plan List: over 300 Free Plans
“The University of Tennessee Extension maintains a collection of over 300 building and equipment plans, and all are now available in electronic format for download. The plans are primarily intended for use in Tennessee, but many are appropriate for other locations as well.
The plans came from many sources. Some were developed in The University of Tennessee Extension Biosystems Engineering and Soil Science Department, but most were developed in a cooperative effort with the United States Department of Agriculture and the Cooperative Farm Building Plan Exchange. The Plan Exchange no longer exists, but the plans remain on file and are available.”
Via The Survivalist Blog.
The Junk Blue Book: Indigenous Fishing and Cargo Craft
“The Junk Blue Book of 1962 is a detailed catalog of the indigenous boats of what was then South Vietnam, during a period when most such vessels were still powered by sail. It was a manual put together by the US Dept. of Defense early in the involvement in the war in Vietnam. It was used as a guide to identify coastwise marine traffic involved in smuggling supplies and personnel south into the Republic of Vietnam from then North Vietnam. Although its production was driven by perceived military necessity it is a unique chronicle of the indigenous fishing and cargo craft of the mid and southern Vietnamese coasts.”
The book is in the public domain and can be found on scribd. A pdf-version is available on a dedicated site. Via Indigenous boats. See also: the wooden work boats of Indochina.
