Full titles read: "3,000,000 Volts! Once upon a time a million volts was looked upon with awe - Then 2,000,000 became the aim. Here's the latest 3,000,000 volts of --------!" (timecode obscures title.)
United States of America.
C/U of a man in glasses as he says the demonstration we are about to see involves a high power rod dissipating 100,000 horsepower, enough to power a city of 300,000 people. Several shots show a huge bolt of electricity sparking off the rod.