Can we build motors that convert static electricity into kinetic energy and use no metal in their construction?
Background Info: I ask this question because I am interested in what electrical technology a society without easy access to metal or metal trade routes could theoretically develop. For example, some Native American tribes. I heard we can produce static electricity without metal so I chose that as the power source for the motor.
Research: Apparently, electrostatic motors that use metal can reach energy efficiencies of at least 60%.
http://rexresearch.com/jefimenko/jefimenkoesmotors.pdf (mentioned on page 112)
An electrostatic motor of similar volume that doesn't use metal would likely have a lower efficiency.
That question was closed due to unclear what I am asking. How can I improve it?
Also, explanations for down votes would be appreciated. I may be able to edit the question from the feedback.