Even though he doesn't look much like Lee Majors, you can call Rod Wiedenman a real-life "bionic man." After all, the Huron, S.D., man has been fitted with a bionic left leg by Wally Kuntz, branch ...

Conventional prosthetic legs may be light and agile, but those who use them say they still feel like artificial limbs. This new bionic leg contains "artificial" intelligence. When scientists built ...