Tesla invented the radio and alternating current, in addition to a multitude of other toys...
He would place an oscillator on a steel bar until the oscillator found the resonant frequency of the steel. The bar would actually contort and writhe BEFORE it broke in a manner akin to shattering.
He found the resonant frequency of the earth and said he could destroy us all in 6 weeks. But he was a chill guy (and good friends with mark twain and JP morgan, how many can claim that?) so he stuck to the inanimate. I like to think of society as a greater organism, in the way that our cells are alive and yet make up ourselves. If you fly in an airplane at night you get the idea, seeing these HUGE arterial highways connecting so many organs of the city. The point is, that our hearts beat like our homes, for every outlet of the electrical grid in your town is resonating at 60 hertz. In fact, since grids are synchronized, the entire country is resonating like thist.