An excerpt from “The Robots Running This Way,” Will Knight’s long-form Technology Review article about Boston Dynamics, one of Google’s recently purchased robotics companies:

Many of the robots struggle to complete the tasks without malfunctioning, freezing up, or toppling over. Of all the challenges facing them, one of the most difficult, and potentially the most important to master, is simply walking over uneven, unsteady, or just cluttered ground. But the Atlas robots (several academic groups have entered versions of the Boston Dynamics machine) walk across such terrain with impressive confidence.

A couple of times each day, the crowd gets to see two other legged robots made by Boston Dynamics. In one demo, a four-legged machine about the size of a horse trots along the track carrying several large packs; it cleverly shuffles its feet to stay upright when momentarily unbalanced by a hefty kick from its operator. In another, a smaller, more agile four-legged machine revs up a loud diesel engine, then bounds maniacally along the racetrack like a big cat, quickly reaching almost 20 miles per hour.

The crowd, filled with robotics researchers from around the world and curious members of the public, gasps and applauds. But the walking and running technology found in the machines developed by Boston Dynamics is more than just dazzling. If it can be improved, then these robots, and others like them, might stride out of research laboratories and populate the world with smart mobile machines. That helps explain why a few days before the DARPA Challenge, Boston Dynamics was acquired by Google.•