The Knowledge: How to Rebuild Civilization in the Aftermath of a Cataclysm Paperback – March 10, 2015

Lewis Dartnell has written this book to describe how to rebuild the infrastructure of civilization from scratch. It is NOT a book on basic survival skills, but a roadmap on how science and technology was built and can be rebuilt.He writes:"This is a survivors' guidebook. Not one just concerned with keeping people alive in the weeks after the Fall -- plenty of handbooks have been written on survival skills -- but one that teaches how to orchestrate the rebuilding of a technologically advanced civilization."- from page 2 of INTRODUCTIONHe describes some of the knowledge and processes needed to "reboot" civilization by rebuilding technology and touches briefly on the basics of shelter, water, food, fuel, medicine and off-grid electric power. He suggests that with a good knowledge of the history of science and technology, it is possible to streamline that process and "leapfrog" some sections that were not needed to reach later points in the timeline. He goes into a little more depth in describing AGRICULTURE in Chapter 3 and FOOD AND CLOTHING in Chapter 4.The most interesting part of the book begins with Chapter 5 on Substances. He describes the importance of using thermal energy beyond that of a simple fire in the processes of: smelting, forging, casting, glass working, making salt, burning lime, firing bricks and more. He describes the extraction of calcium carbonate from limestone and burning it in a hot kiln to create calcium oxide which is in turn combined with water to make hydrated lime (calcium hydroxide). These steps form a foundation for later chemical processes that involve making soap, ammonia, glue, gunpowder and plastics. The chapter continues to describe the chemistry of wood pyrolisis, which involves collecting vapor from baked wood to make methanol, acetone and tars or drive a combustion engine. The chapter is completed with a brief discussion of acids.MATERIALS is the topic of Chapter 6 and it builds nicely on the previous discussion with sections on clay, lime mortars, metals and glass. Crude clay can be fired at high temperature to make ceramics which turn out to be very useful with both chemistry and later electronics, in both cases because it mostly stays not involved with process changes. Clay is a primary source for aluminum. Lime mortar led to cement which had a huge impact on building technology. Ceramics, cement and clay are instrumental in making high temperature kilns and furnaces. It is possible to melt salvaged aluminum, like soda cans, in a small furnace and using a sand casting process, produce simple parts to make a working metal lathe. The metal lathe can reproduce itself as well as make more complex metal working machines like the milling machine. This project is thoroughly documented in a small 7-book series called, "Build Your Own Metal Working Shop From Scrap" by David and Vincent Gingery. This is great example of Dartnell's concept of accelerating development by leapfrogging.The book continues with chapters on MEDICINE, POWER, TRANSPORT, COMMUNICATION, ADVANCED CHEMISTRY and one titled TIME AND PLACE which deals with timekeeping, clocks and navigation. The final chapter, THE GREATEST INVENTION, is about the scientific method and its application.In order for this book to really accomplish what it suggests, it would need to be much larger. There are missing pieces that would be needed to complete the rebuilding of advanced technology. For instance: in order to recreate modern electronics, we need advanced lenses and optics, photographic emulsion chemistry (which is covered in this book), more on electrolysis and plating, modern electronics and more advanced knowledge. Maybe this is reason for Dartnell to consider a "part two" book. But this book is a great start and should be considered a must for any complete survival library or collection on the history of science and technology.It is also extremely well annotated and referenced and from a knowledge management viewpoint is work the price of the book just for the knowledge map it provides to other sources. To be fair, there is some missing detail in some areas, but in most cases, it seems like the detail is available in the referenced material. A perfect example is the section on building your own metal shop. Dartnell cannot cover all the material in the small seven book series he references, but he does cover enough of the overall idea to make it clear what great potential is there and then references the source to make it available to the reader.

This book has purpose beyond what to do at The End Of The World As We Know It. The Knowledge explains, in basic layman's terms, a multitude of topics describe much of the technology we take for granted in today's world. Topics cover the origins and history of many essential technologies that make up modern life.Well indexed with an extensive bibliography, you can learn as much, or as little about everyday technologies that make life as we know it.

If you're looking for a 21st century Kurt Saxon, look elsewhere. If you know the history of technology, move along, nothing to see. Otherwise, the book is a fine overview of some—emphasis on some—of the technology and process fundamentals underpinning modern society. Probably the best audience for the book are 12 year olds who are interested in machines and chemistry. The reference section is the strongest part of the book. The last chapter on the scientific method the weakest. It's as if the Mr. Dartnell wrote the reference section first then ran out of steam and just wanted to finish the book. A couple of quibbles. $12.99 for a Kindle book is ridiculous. He's probably using the extra profit to support his web site but still. Get the book from a library or buy it used. Occasionally, his religious beliefs show through. I'm fine with that because it helps identify the author's meta-reasons for writing the book but others may be offended.BTW, if you're interested in some of the machines and processes presented in the book, follow up with "The Way Things Work: An Illustrated Encyclopedia of Technology" by C. van Amerongen. It's a bit dated (doesn't cover the microprocessor revolution) but the fundamental tech Mr. Dartnell talks about is far better presented. Odd that he didn't reference "The Way Things Work". It's a classic.

An important book for preppers, those in third world countries, and those concerned about lost skills. Recommended. A+.

Informative.

I didn't realize I already owned this, titled "The Knowledge: How to Rebuild Our World from Scratch" published in 2014.It was good, but I don't need two. I get that the main title is the same, but the subtitle tricked my search engine. If the description says this is a reprint or a revision, I missed it.