Comments by "mpetersen6" (@mpetersen6) on "Merrill-Jenks Navy Carbine Conversion" video.

  1. There are certain manufactured items that laid the foundation for precision manufacturing. One of course is firearms. Another is clocks and watches once they became a mass produced item. A third surprisingly is wood cased pencils. Pencils are also related to one of the first government sponsored chemical research programs. Early pencil manufacture was centered in England due to a deposit of naturally occuring graphite. The graphite was also used to produce molds for cannon balls. The French, being cut off from a source of graphite started a program to come up with an artificial substitute. See, this was fire arms related
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