I got one interesting abrupt remark related to my hobbed bolt. The idea was that it was both difficult, and may be ridiculous to make one's own crappy part nowadays, while you could buy one, shiny, made on an precise and industrial machine. But who's the chicken and who's the egg? And which is better really? I think the answer is worth a post on its own here and there
|The Aeolipile, may be the first steam engine.|
It was certainly made "at home" by an early "maker" in Grece.
Since the business angels were not ready (cheap slaves were found everywhere),
we lost almost two thousand years before re-discovering it!