| The top review on Amazon is devastating: "The author purports to provide a blueprint to restoring a technological economy after a TEOTWAWKI event, but some his listed sources are from the realm of science fiction. Not an encouraging start. He goes on to pretend that he knows more than he actually does. It's as if he skimmed a few sources but only superficially understood them. How else can he suggest that a collapsed society go direct to building blast furnaces, ignoring the bloomery method of reducing iron ore that provided mankind with workable metal for two millennia as a cottage industry? Then he goes on to suggest that we build Bessemer converters to decarbonize the pig iron. Does he not know that the Bessemer converter is all but obsolete? Did he miss the chapter about the (chemically) basic refining furnace, which is a lot easier to build? He quotes a lot of interesting chemistry, then throws up a real laugher when he gets the simple and universally known formula for black powder exactly backwards! While the book skims quite a potpourri of technologies we use today, he omits almost entirely the tools needed to implement them. Knowing how an electrical generator or motor is assembled is all well and good, but where will the impoverished builder get copper wire? Or the special steel sheet necessary for laminating magnet cores? Or the tooling for punching out the laminations? He never even began to address the fundamentals of machine tools, on which about 99% of our modern technology rests, and without which you cannot build even an 18th century economy. . As a high school science project, this would rate a solid C for effort, and something less for the end result." |