The US Air Force has developed a gadget that will give troops operating in the field access to electricity. Just hook it onto a power line:

An engineer at an Air Force research lab in Dayton, Ohio, has figured out how to harness electricity from power lines via a system called RAPS. RAPS is a connecting device that’s attached to the end of a long cable. When the device is thrown over a power line, a blade at the end pierces the power line and completes the circuit that brings electricity down to the soldier. And that can mean a lot in the desert or jungle.

Link via OhGizmo! | Photo: US Department of Defense