We live in an electric world and knowing a thing or two about the contraptions that sustain the way of living in this era may help a few of us reconstruct society after a devastating impact event so let us get to the point. Electric generators simply convert the force of motion into current using magnets. When the link between magnetism and electricity was discovered and became electromagnetism, generators followed soon after using electrostatics (triboelectric effect and electrostatic induction) to create charge. The homopolar generators were the first to become a reality when some guy whose last name was Faraday (we all know who it is, he needs no introduction) found that moving a magnet though of a conductive coil and vice versa generated voltage. Hmm, interesting. So long as there is some relative motion between the two, it can generate energy. Many of our dynamo-type generators operate on this principle, say if a magnet were mounted on an axle near a coil and turned by a force such as radial fins beneath a waterfall or blades of a wind-mill like structure then induction could bring the whole world electricity. I learned all of this today but think with a few years of study one could bring a centuries worth of human knowledge to the world over. Maybe that is our strength and fault as human beings, mimicry.