A 20-foot vacuum chamber in Albuquerque takes 26 million amps from 2,160 capacitors in about 100 billionths of a second, around 200 times a year, each shot shaking the ground like a small earthquake,

All of it converges on a target no bigger than a spool of thread, sitting in a vacuum chamber 10 feet across and 20 feet tall. The usual target is a set of