I wanted to ask you a briefly about this project: http://www.evilmadscientist.com/2008/a-simple-persistence-of-vision-approach-to-lissajous-figures/
Comments are closed on the blog post so I came here.
I'm trying to design an easy PoV project for some kids I do a science club with. The electronic side is easy enough, but my question is about the physical movement of it: You show some great figures in the post above. Do you remember whether they were visible with the naked eye or are they only revealed in a long-exposure photograph? If visible, what sort of rate was the pendulum? I guess only 1-2 Hz at most.
I'm wondering whether I need to move my PoV device through a whole display cycle in less than 1/25th second (which seems to be the "frame rate" of the human eye) or whether a slower rate will do.
Any thoughts appreciated.