The Army’s Robot Sherpa
`Meet BigDog, a mechanical mutt that does more than snare Frisbees and irrigate fire hydrants. It totes hundreds of pounds of gear so soldiers won’t have to, and it will never spook under fire. Developed by Boston Dynamics with funding from the U.S. military, the BigDog prototype is arguably the world’s most ambitious legged robot. Its stability and awareness of its own orientation make it the first robot that can handle the unknown challenges of the battlefield. The Great Dane–size ’bot can trot more than three miles an hour, climb inclines of up to 45 degrees, and carry up to 120 pounds—even in rough terrain impenetrable to wheeled or tracked vehicles. But this one is just a puppy; Boston Dynamics expects the next iteration, ready this summer, to be at least twice as fast and carry more than twice as much.’