On a crisp May day in Oregon, it wasn't an Olympian but a robot called Cassie that broke a Guinness world record for the 100-meter dash.
The robot, which researchers say resembles an "ostrich without a head," started the day with a few stumbles, but ultimately prevailed - running 100 meters in 24.73 seconds, slower than Usain Bolt's record-setting 9.58 seconds, but still a Guinness world record for a bipedal robot, Oregon State University announced last week.