Triathlon robots

Triathlon robots

TOKYO, Japan - Combination photo shows swimming (top), running (bottom L) and bicycle riding (bottom R) robots powered by Panasonic Corp.'s Evolta rechargeable nickel-metal-hydride batteries. Panasonic unveiled the robots in Tokyo on Sept. 15, 2011, and said they will run a triathlon in Hawaii from late October.

Triathlon robots

Triathlon robots

TOKYO, Japan - A pitchman for Panasonic Corp. shows (from L) swimming, bicycle riding and running robots powered by the company's Evolta rechargeable nickel-metal-hydride batteries during a demonstration in Tokyo on Sept. 15, 2011. Panasonic unveiled the robots and said they will run a triathlon in Hawaii from late October.

Triathlon robots

Triathlon robots

TOKYO, Japan - A swimming robot powered by Panasonic Corp.'s Evolta rechargeable nickel-metal-hydride batteries is demonstrated in Tokyo on Sept. 15, 2011. Panasonic unveiled swimming, bicycle riding and running robots and said they will challenge a triathlon in Hawaii from late October.

Triathlon robots

Triathlon robots

TOKYO, Japan - A swimming robot powered by Panasonic Corp.'s Evolta rechargeable nickel-metal-hydride batteries is demonstrated in Tokyo on Sept. 15, 2011. Panasonic unveiled swimming, bicycle riding and running robots and said they will challenge a triathlon in Hawaii from late October. (Kyodo)

Triathlon robots

Triathlon robots

TOKYO, Japan - A pitchman for Panasonic Corp. shows (from L) swimming, bicycle riding and running robots powered by the company's Evolta rechargeable nickel-metal-hydride batteries during a demonstration in Tokyo on Sept. 15, 2011. Panasonic unveiled the robots and said they will run a triathlon in Hawaii from late October. (Kyodo)

Triathlon robots

Triathlon robots

TOKYO, Japan - Combination photo shows swimming (top), running (bottom L) and bicycle riding (bottom R) robots powered by Panasonic Corp.'s Evolta rechargeable nickel-metal-hydride batteries. Panasonic unveiled the robots in Tokyo on Sept. 15, 2011, and said they will run a triathlon in Hawaii from late October. (Kyodo)