507 mechanical movements

OOoooh, this is so cool. It's a nineteenth-century book cataloging mechanical movements, with pictures; the Website is replacing them (augmenting them) with animations.

This is evocative of a descriptive grammar for machinery, and that really pushes all my buttons. I'd like to spend some time thinking it through sometime.

And while we're on the topic of machinery, have an animation of epicyclic gearing.