How An Electric Generator Works
http://www.wvic.com/how-gen-works.htm
Ultra-simple Electric Generator
http://amasci.com/amateur/coilgen.html
Electrical Generator
http://www.sciencejoywagon.com/physicszone/lesson/otherpub/
wfendt/generatorengl.htm
Electrical generator
http://en.wikipedia.org/wiki/Electrical_generator
Static Electric Generating Machines
http://chem.ch.huji.ac.il/~eugeniik/instruments/archaic/static_machines.htm