AirTech wrote:The Charis does, the Church doesn't - hence messing with their minds, other options would be give them a ridiculously complicated engine with fine tolerances to copy - we already know that they can't copy the rifles, so copying a precision steam engine should really twist them up.
The Go4 has the Writ' precautions for pressure cookers, not the rest.
However, there's no particular need to come up with "ridiculously complicated" steam engines; the steam engines Charis is using are more than complicated enough:
Midst Toil And Tribulation
wrote:Like the steam engine they’d just observed. Thanks to Owl—and Merlin, of course—Howsmyn had completely bypassed the first hundred or hundred and fifty years of the steam engine’s development back on long-dead Earth. He’d gone directly to water-tube boilers and compound expansion engines, with steam pressures of almost three hundred pounds per square inch, something Earth hadn’t approached until the beginning of its twentieth century. Oh, his initial engine had been a single-cylinder design, but that had been as much a test of the concept as anything else. He’d moved on to double-cylinder expansion engines for his first canal boat trials, but no canal boat offered anything like enough room for that monster they’d just watched in action. Still, the boat engines had been a valuable learning exercise … and even they operated at a far higher pressure—and efficiency—than anything attainable before the very end of Old Earth’s nineteenth century!
The advances he’d already made in metallurgy, riveting and welding, and quality control had helped to make those pressures and temperatures possible, but Safehold had always had a working empirical understanding of hydraulics. That was one reason Howsmyn’s hydro-accumulators had been relatively easy for Wylsynn to approve even before he’d been admitted to the inner circle; they’d simply been one more application—admittedly, an ingenious one—of concepts which had been used in the waterworks the”archangels” had made part of Safehold’s infrastructure from the Day of Creation. But the compact efficiency of the engines Howsmyn was about to introduce would dwarf even the hydro-accumulator’s impact on what Merlin called his “power budget.” So perhaps it wasn’t surprising Wylsynn had been more focused on that increase than on the even greater potentials of the electricity he still understood so poorly himself.
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Answers! I got lots of answers!
(Now if I could just find the right questions.)