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Segway inventor reinvents the prosthetic arm.

Thaddeus Roppel of Auburn University looks at how teams of robots can work together with humans during search and rescue operations.

Vanderbilt engineers trade in batteries for rocket fuel in the robotic arm they are developing for amputees.

The Defense Department's autonomous, hybrid electric ground combat vehicle undergoing field trials at Fort Bliss, Texas.

Episode 4: Spectrum robotics blogger Mikell Taylor reviews the latest robot kits to find the right one for you or your kids.

Reporter Dean Adams follows the Border Green Energy Team as they install solar panels and microhydro turbines for villages at the Thai-Burma border.

Researchers are looking for a way to connect prosthetics directly to the brain

Part II: The health impacts of Katrina are finally becoming apparent

Episode 6: Authors Sharon Weinberger and Nathan Hodge talk about the travels behind their new book, "A Nuclear Family Vacation"

Molten metal flows as DIYers race to build their kits.