This is fantastic.  Reminds me of the better part of a morning I spent at the beginning of the summer at the Boston Science Museum, where, in a dark, neglected corner of the basement, they have a very old display with motorized versions of many of these mechanisms.  I think I was the only person there the whole time.<p>There&#x27;s a lot of buzz about &quot;learn-to-code&quot; movements, but people are generally just as illiterate about mechanics, electronics, and other basic science.  I think we may have covered 5% of these mechanisms in one unit of my HS freshman science class.<p>We do a terrible job teaching science in the US...