On Aug 7, 2016, at 1:20 PM, Judith Powell <[email protected]> wrote: > > On Aug 7, 2016, at 12:15 PM, Gerardo @neorigami.com <[email protected]> > wrote: > > I wanted to ask you, what are the mechanics behind the flapping bird? > Are they related with the simple machines? I couldn't find one that > fits.
The term I have heard Robert Lang use is linkages. Do a web search on linkages and action origami and you will have plenty of scholarly articles to read. Cheers, Brian K. Webb
