The Defense Advanced Research Projects Agency filled the courtyard at the Pentagon on May 11 with a variety of exhibitions at its annual DARPA Demo Day, giving the defense community and media a chance to see the next steps to maintain supremacy on the battlefield.

Here are some highlights:

The Robotic Arm:

Johnny Matheney, a civilian who lost his army to cancer in 2008, demonstrated his one-of-a-kind prosthetic. This DARPA prototype is integrated directly onto the bone and uses sensors to pick up nerve signals from the brain to generate movement.