A rather excellent rotary mobile made by scientist/engineer Justine Haupt as a “statement against a world of touchscreens, hyperconnectivity, and complacency with big brother watchdogs.” Sez she:
it’s not just a show-and-tell piece… My intent is to use it as my primary phone. It fits in a pocket.; It’s reasonably compact; calling the people I most often call is faster than with my old phone, and the battery lasts almost 24 hours.
She’s open sourced the technical details on her website so you can build your own if you’re that way inclined.
Asinas II – an intricate, melon-twisting kinetic sculpture by Dutch artist Jennifer Townley who explores the complex non-linear movements generated by the circular motion of rotary engines. To wit:
The various angles and curves of the individual parts create an elaborated unity when joined together on the shaft. The two “wings” formed by these seventy-seven parts are able to slide through each other and rotate in opposite direction at a slightly different speed. This results in a movement that appears to be far more complex, existing of multiple layers, where repetitive shapes seem to be moving within one another.
You wouldn’t want to get your scarf caught in it, is all.