How Do You Shut Down the Second Most Powerful Particle Accelerator?

The Tevatron shut down yesterday. Before its duties were taken up by the the Large Hadron Collider, it accelerated highly charged particles through 4 miles of electromagnetic coil and vacuum tubes to discover the secrets of the universe. How do you turn a beast like that off?

Two buttons, both specially designed for the express purpose of saying goodbye to this once-great monster machine. The first, labeled BEAM, shut down the particle beam, and the second, labeled RAMP, killed the power. Surprisingly simple. [Slate]