As iRobot Corp.'s second-generation Looj makes its debut, the engineering challenge behind thegutter-cleaning device was to bolster its ability to dislodge and break upclogged leaves and debris in a ...

Fellow humans, pay heed: We are nearing the Singularity long promised by futurist Ray Kurzweil—the day when technology exceeds human capability and elevates existence to a hyper-efficient state that ...