Jim Wilkins wrote:

The Renaissance was a return to Rome's level. Europe didn't advance
beyond them in most ways until about 1800. One century later we had
cars and airplanes.
https://www.amazon.com/Ancient-Engin.../dp/0345482875


That century covered a lot of ground 8-)

Some of the ploughwork is chronicled in
https://books.google.com/books/about...d=X-EJAAAAIAAJ

It's available as a very good free E-book and quite fascinating to wade
through. It'll be old news to most following this thread, but if not the
book is well worth a look. One of the more striking parallels is between
toolmaking of the 1800's and electronics of the 1900's.

Thanks for reading,

bob prohaska