Photos: Toru Yamanaka/AFP/Getty Images (3)
The smallest competitor at this month’s Ironman Triathlon, in Hawaii, is the Panasonic Evolta robot. The 17-centimeter-long robot, powered by two AA batteries, is expected to complete the 3.8-kilometer swim, 180-km bicycle ride, and 42-km run in about a week. (Humans, on average, complete the endurance test in about 8 hours.) The robot is running inside a modified hamster wheel and pedaling a bike with training wheels.
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